Showing preview only (496K chars total). Download the full file or copy to clipboard to get everything.
Repository: tbicr/django-pg-zero-downtime-migrations
Branch: master
Commit: 1018d52cf2b0
Files: 257
Total size: 424.2 KB
Directory structure:
gitextract_4w34wnk2/
├── .github/
│ ├── FUNDING.yml
│ ├── ISSUE_TEMPLATE/
│ │ └── bug_report.md
│ └── workflows/
│ ├── check.yml
│ └── publish.yml
├── .gitignore
├── .pre-commit-config.yaml
├── AUTHORS
├── CHANGES.md
├── Dockerfile
├── LICENSE
├── MANIFEST.in
├── README.md
├── django_zero_downtime_migrations/
│ ├── __init__.py
│ └── backends/
│ ├── __init__.py
│ ├── postgis/
│ │ ├── __init__.py
│ │ ├── base.py
│ │ └── schema.py
│ └── postgres/
│ ├── __init__.py
│ ├── base.py
│ └── schema.py
├── docker-compose.yml
├── docker_postgres_init.sql
├── manage.py
├── setup.cfg
├── setup.py
├── tests/
│ ├── __init__.py
│ ├── apps/
│ │ ├── __init__.py
│ │ ├── bad_flow_add_column_with_default_app/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_add_field_default.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── bad_flow_add_column_with_notnull_app/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_add_field_notnull.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── bad_flow_add_column_with_notnull_default_app/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_add_field_notnull_default.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── bad_flow_change_char_type_that_unsafe_app/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_change_type_from_char120_to_char100.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── bad_rollback_flow_change_char_type_that_safe_app/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_change_type_safe_from_char100_to_char120.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── bad_rollback_flow_drop_column_with_notnull_app/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_drop_field_not_null.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── bad_rollback_flow_drop_column_with_notnull_default_app/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_drop_field_not_null_default.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── decimal_to_float_app/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_type_conversion.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── good_flow_alter_table_with_same_db_table/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_rename_model.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── good_flow_app/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_add_nullable_field.py
│ │ │ │ ├── 0003_set_field_default.py
│ │ │ │ ├── 0004_set_field_not_null.py
│ │ │ │ ├── 0005_drop_field_not_null.py
│ │ │ │ ├── 0006_drop_field_default.py
│ │ │ │ ├── 0007_drop_field.py
│ │ │ │ ├── 0008_add_field_with_check_constraint.py
│ │ │ │ ├── 0009_drop_field_with_check_constraint.py
│ │ │ │ ├── 0010_add_field_with_foreign_key.py
│ │ │ │ ├── 0011_drop_field_with_foreign_key.py
│ │ │ │ ├── 0012_add_field_with_unique_constraint.py
│ │ │ │ ├── 0013_drop_field_with_unique_constraint.py
│ │ │ │ ├── 0014_add_field_with_index.py
│ │ │ │ ├── 0015_drop_field_with_index.py
│ │ │ │ ├── 0016_add_check_constraint.py
│ │ │ │ ├── 0017_drop_check_constraint.py
│ │ │ │ ├── 0018_add_unique_constraint.py
│ │ │ │ ├── 0019_drop_unique_constraint.py
│ │ │ │ ├── 0020_add_unique_constraint_with_condition.py
│ │ │ │ ├── 0021_drop_unique_constraint_with_condition.py
│ │ │ │ ├── 0022_add_index.py
│ │ │ │ ├── 0023_drop_index.py
│ │ │ │ ├── 0024_add_index_with_condition.py
│ │ │ │ ├── 0025_drop_index_with_condition.py
│ │ │ │ ├── 0026_add_brin_index.py
│ │ │ │ ├── 0027_drop_brin_index.py
│ │ │ │ ├── 0028_add_brin_index_with_condition.py
│ │ │ │ ├── 0029_drop_brin_index_with_condition.py
│ │ │ │ ├── 0030_add_btree_index.py
│ │ │ │ ├── 0031_drop_btree_index.py
│ │ │ │ ├── 0032_add_btree_index_with_condition.py
│ │ │ │ ├── 0033_drop_btree_index_with_condition.py
│ │ │ │ ├── 0034_add_gin_index.py
│ │ │ │ ├── 0035_drop_gin_index.py
│ │ │ │ ├── 0036_add_gin_index_with_condition.py
│ │ │ │ ├── 0037_drop_gin_index_with_condition.py
│ │ │ │ ├── 0038_add_gist_index.py
│ │ │ │ ├── 0039_drop_gist_index.py
│ │ │ │ ├── 0040_add_gist_index_with_condition.py
│ │ │ │ ├── 0041_drop_gist_index_with_condition.py
│ │ │ │ ├── 0042_add_hash_index.py
│ │ │ │ ├── 0043_drop_hash_index.py
│ │ │ │ ├── 0044_add_hash_index_with_condition.py
│ │ │ │ ├── 0045_drop_hash_index_with_condition.py
│ │ │ │ ├── 0046_add_spgist_index.py
│ │ │ │ ├── 0047_drop_spgist_index.py
│ │ │ │ ├── 0048_add_spgist_index_with_condition.py
│ │ │ │ ├── 0049_drop_spgist_index_with_condition.py
│ │ │ │ ├── 0050_add_unique_constraint_deferrable.py
│ │ │ │ ├── 0051_drop_unique_constraint_deferrable.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── good_flow_app_concurrently/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_auto_20191210_2147.py
│ │ │ │ ├── 0003_auto_20191210_2148.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── good_flow_drop_column_with_constraints/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_remove_testtablemain_drop_col_u1_and_more.py
│ │ │ │ ├── 0003_remove_testtablemain_field_i7.py
│ │ │ │ ├── 0004_remove_testtablemain_field_i6.py
│ │ │ │ ├── 0005_remove_testtablemain_field_i5.py
│ │ │ │ ├── 0006_remove_testtablemain_field_i4.py
│ │ │ │ ├── 0007_remove_testtablemain_field_i3.py
│ │ │ │ ├── 0008_remove_testtablemain_field_i2.py
│ │ │ │ ├── 0009_remove_testtablemain_field_i1.py
│ │ │ │ ├── 0010_remove_testtablemain_field_u7.py
│ │ │ │ ├── 0011_remove_testtablemain_field_u6.py
│ │ │ │ ├── 0012_remove_testtablemain_field_u5.py
│ │ │ │ ├── 0013_remove_testtablemain_field_u4.py
│ │ │ │ ├── 0014_remove_testtablemain_field_u3.py
│ │ │ │ ├── 0015_remove_testtablemain_field_u2.py
│ │ │ │ ├── 0016_remove_testtablemain_field_u1.py
│ │ │ │ ├── 0017_remove_testtablemain_main_id.py
│ │ │ │ ├── 0018_remove_testtablemain_parent.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── good_flow_drop_column_with_constraints_old/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_remove_testtablemain_drop_col_u2_and_more.py
│ │ │ │ ├── 0003_remove_testtablemain_field_i7.py
│ │ │ │ ├── 0004_remove_testtablemain_field_i6.py
│ │ │ │ ├── 0005_remove_testtablemain_field_i5.py
│ │ │ │ ├── 0006_remove_testtablemain_field_i4.py
│ │ │ │ ├── 0007_remove_testtablemain_field_i3.py
│ │ │ │ ├── 0008_remove_testtablemain_field_i2.py
│ │ │ │ ├── 0009_remove_testtablemain_field_i1.py
│ │ │ │ ├── 0010_remove_testtablemain_field_u7.py
│ │ │ │ ├── 0011_remove_testtablemain_field_u5.py
│ │ │ │ ├── 0012_remove_testtablemain_field_u2.py
│ │ │ │ ├── 0013_remove_testtablemain_main_id.py
│ │ │ │ ├── 0014_remove_testtablemain_parent.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── good_flow_drop_table_with_constraints/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_remove_testtablechild_main.py
│ │ │ │ ├── 0003_delete_testtablemain.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── idempotency_add_auto_field_app/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_alter_relatedtesttable_test_field_int.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── idempotency_add_check_app/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_relatedtesttable_idempotency_add_check_app_relatedtesttable_check.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── idempotency_add_column_app/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_relatedtesttable_test_field_str.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── idempotency_add_column_foreign_key_app/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_relatedtesttable_test_model.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── idempotency_add_column_one_to_one_app/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_relatedtesttable_test_model.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── idempotency_add_foreign_key_app/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_alter_relatedtesttable_test_field_int.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── idempotency_add_index_app/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_alter_relatedtesttable_test_field_int.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── idempotency_add_index_meta_app/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_relatedtesttable_relatedtesttable_idx.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── idempotency_add_one_to_one_app/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_alter_relatedtesttable_test_field_int.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── idempotency_add_primary_key_app/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_remove_relatedtesttable_id_and_more.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── idempotency_add_unique_app/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_alter_relatedtesttable_test_field_int.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── idempotency_add_unique_meta_app/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_relatedtesttable_relatedtesttable_uniq.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── idempotency_create_table_app/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_relatedtesttable_and_more.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ ├── idempotency_set_not_null_app/
│ │ │ ├── __init__.py
│ │ │ ├── migrations/
│ │ │ │ ├── 0001_initial.py
│ │ │ │ ├── 0002_alter_relatedtesttable_test_field_int.py
│ │ │ │ └── __init__.py
│ │ │ └── models.py
│ │ └── old_notnull_check_constraint_migration_app/
│ │ ├── __init__.py
│ │ ├── migrations/
│ │ │ ├── 0001_initial.py
│ │ │ └── __init__.py
│ │ └── models.py
│ ├── integration/
│ │ ├── __init__.py
│ │ └── test_migrations.py
│ ├── settings.py
│ ├── settings_make_migrations.py
│ └── unit/
│ ├── __init__.py
│ └── test_schema.py
└── tox.ini
================================================
FILE CONTENTS
================================================
================================================
FILE: .github/FUNDING.yml
================================================
github: tbicr
================================================
FILE: .github/ISSUE_TEMPLATE/bug_report.md
================================================
---
name: Bug report
about: Create a report to help us improve
title: ''
labels: ''
assignees: ''
---
**Describe the bug**
<!--A clear and concise description of what the bug is.-->
**To Reproduce**
1. What model did you have?
2. How did you change the model?
3. What migration were generated?
4. What SQL was executed?
5. What issue did you get?
**Expected behavior**
<!--A clear and concise description of what you expected to happen.-->
**Versions:**
- Postgres:
- Python:
- Django:
- django-pg-zero-downtime-migrations library:
================================================
FILE: .github/workflows/check.yml
================================================
name: Check
on: [push, pull_request]
jobs:
build:
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v2
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3
- name: build and push
uses: docker/build-push-action@v6
with:
tags: django-pg-zero-downtime-migrations:latest
outputs: type=docker,dest=${{ runner.temp }}/django-pg-zero-downtime-migrations-image.tar
cache-from: type=gha
cache-to: type=gha,mode=max
- name: Upload artifact
uses: actions/upload-artifact@v4
with:
name: django-pg-zero-downtime-migrations-image
path: ${{ runner.temp }}/django-pg-zero-downtime-migrations-image.tar
check:
needs: build
strategy:
fail-fast: false
matrix:
tox-filter:
- "py3.8"
- "py3.9"
- "py3.10"
- "py3.11"
- "py3.12"
- "py3.13"
name: run checks ${{ matrix.tox-filter }}
runs-on: ubuntu-latest
steps:
- name: checkout code
uses: actions/checkout@v2
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3
- name: Download artifact
uses: actions/download-artifact@v4
with:
name: django-pg-zero-downtime-migrations-image
path: ${{ runner.temp }}
- name: Load Docker image
run: |
docker load --input ${{ runner.temp }}/django-pg-zero-downtime-migrations-image.tar
docker image ls -a
- name: pull DB images
run: docker compose pull --quiet --ignore-buildable
- name: run checks
run: docker compose run --rm django-pg-zero-downtime-migrations-tests tox -f ${{ matrix.tox-filter }}
================================================
FILE: .github/workflows/publish.yml
================================================
name: Build and Publish
on: workflow_dispatch
jobs:
build-and-publish:
name: build and publish package
runs-on: ubuntu-latest
steps:
- name: checkout code
uses: actions/checkout@v2
- name: set up python
uses: actions/setup-python@v2
with:
python-version: '3.x'
- name: install pypa/build
run: python -m pip install build --user
- name: build a binary wheel and a source tarball
run: python -m build --sdist --wheel --outdir dist/
- name: publish distribution to PyPI
uses: pypa/gh-action-pypi-publish@release/v1
with:
password: ${{ secrets.PYPI_API_TOKEN }}
================================================
FILE: .gitignore
================================================
# Byte-compiled / optimized / DLL files
__pycache__/
*.py[cod]
*$py.class
# C extensions
*.so
# Distribution / packaging
.Python
build/
develop-eggs/
dist/
downloads/
eggs/
.eggs/
lib/
lib64/
parts/
sdist/
var/
wheels/
*.egg-info/
.installed.cfg
*.egg
MANIFEST
# PyInstaller
# Usually these files are written by a python script from a template
# before PyInstaller builds the exe, so as to inject date/other infos into it.
*.manifest
*.spec
# Installer logs
pip-log.txt
pip-delete-this-directory.txt
# Unit test / coverage reports
htmlcov/
.tox/
.coverage
.coverage.*
.cache
nosetests.xml
coverage.xml
*.cover
.hypothesis/
.pytest_cache/
# Translations
*.mo
*.pot
# Django stuff:
*.log
local_settings.py
db.sqlite3
# Flask stuff:
instance/
.webassets-cache
# Scrapy stuff:
.scrapy
# Sphinx documentation
docs/_build/
# PyBuilder
target/
# Jupyter Notebook
.ipynb_checkpoints
# pyenv
.python-version
# celery beat schedule file
celerybeat-schedule
# SageMath parsed files
*.sage.py
# Environments
.env
.venv
env/
venv/
ENV/
env.bak/
venv.bak/
# Spyder project settings
.spyderproject
.spyproject
# Rope project settings
.ropeproject
# mkdocs documentation
/site
# mypy
.mypy_cache/
================================================
FILE: .pre-commit-config.yaml
================================================
- repo: https://github.com/pre-commit/mirrors-prettier
rev: "" # Use the sha or tag you want to point at
hooks:
- id: prettier
================================================
FILE: AUTHORS
================================================
maintainer: Paveł Tyślacki <pavel.tyslacki@gmail.com>
================================================
FILE: CHANGES.md
================================================
# django-pg-zero-downtime-migrations Changelog
## 0.19
- added django 5.2 support
- parallelize CI to run one job per Python version
## 0.18
- fixed unique constraint creation with the `deferrable` parameter
- split CI into smaller jobs
## 0.17
- added django 5.1 support
- added python 3.13 support
- added postgres 17 support
- marked postgres 12 support as deprecated
- marked postgres 13 support as deprecated
- dropped django 3.2 support
- dropped django 4.0 support
- dropped django 4.1 support
- dropped python 3.6 support
- dropped python 3.7 support
- dropped `migrate_isnotnull_check_constraints` command
## 0.16
- changed `ADD COLUMN DEFAULT NULL` to a safe operation for code defaults
- changed `ADD COLUMN DEFAULT NOT NULL` to a safe operation for `db_default` in django 5.0+
- added the `ZERO_DOWNTIME_MIGRATIONS_KEEP_DEFAULT` setting and changed `ADD COLUMN DEFAULT NOT NULL` with this setting to a safe operation for django < 5.0
- added the `ZERO_DOWNTIME_MIGRATIONS_EXPLICIT_CONSTRAINTS_DROP` setting and enabled dropping constraints and indexes before dropping a column or table
- fixed `sqlmigrate` in idempotent mode
- fixed unique constraint creation with the `include` parameter
- fixed idempotent mode tests
- updated unsafe migration links to the documentation
- updated patched code to the latest django version
- updated test image to ubuntu 24.04
- improved README
## 0.15
- added idempotent mode and the `ZERO_DOWNTIME_MIGRATIONS_IDEMPOTENT_SQL` setting
- fixed django 3.2 degradation due to the missing `skip_default_on_alter` method
- improved README
- updated the release github action
## 0.14
- fixed deferred sql errors
- added django 5.0 support
- added python 3.12 support
- added postgres 16 support
- dropped postgres 11 support
- removed the `ZERO_DOWNTIME_MIGRATIONS_USE_NOT_NULL` setting
- marked the `migrate_isnotnull_check_constraints` command as deprecated
## 0.13
- added django 4.2 support
- marked django 3.2 support as deprecated
- marked django 4.0 support as deprecated
- marked django 4.1 support as deprecated
- marked postgres 11 support as deprecated
- dropped postgres 10 support
- updated the test docker image to ubuntu 22.04
## 0.12
- added support for `serial` and `integer`, `bigserial` and `bigint`, as well as `smallserial` and `smallint`, implementing the same type changes as safe migrations
- fixed the `AutoField` type change and concurrent insertion issue for django < 4.1
- added sequence dropping and creation timeouts, as they can be used with the `CASCADE` keyword and may affect other tables
- added django 4.1 support
- added python 3.11 support
- added postgres 15 support
- marked postgres 10 support as deprecated
- dropped django 2.2 support
- dropped django 3.0 support
- dropped django 3.1 support
- dropped postgres 9.5 support
- dropped postgres 9.6 support
- added github actions checks for pull requests
## 0.11
- fixed an issue where renaming a model while keeping `db_table` raised an `ALTER_TABLE_RENAME` error (#26)
- added django 3.2 support
- added django 4.0 support
- added python 3.9 support
- added python 3.10 support
- added postgres 14 support
- marked django 2.2 support as deprecated
- marked django 3.0 support as deprecated
- marked django 3.1 support as deprecated
- marked python 3.6 support as deprecated
- marked python 3.7 support as deprecated
- marked postgres 9.5 support as deprecated
- marked postgres 9.6 support as deprecated
- switched to github actions for testing
## 0.10
- added django 3.1 support
- added postgres 13 support
- dropped python 3.5 support
- updated the test environment
## 0.9
- fixed the decimal-to-float migration error
- fixed tests for django 3.0.2 and later
## 0.8
- added django 3.0 support
- added support for concurrent index creation and removal operations
- added support for exclude constraints as an unsafe operation
- dropped postgres 9.4 support
- dropped django 2.0 support
- dropped django 2.1 support
- removed the deprecated `django_zero_downtime_migrations_postgres_backend` module
## 0.7
- added python 3.8 support
- added support for postgres-specific indexes
- improved test clarity
- fixed regexp escaping warnings in the management command
- fixed style checks
- improved README
- marked python 3.5 support as deprecated
- marked postgres 9.4 support as deprecated
- marked django 2.0 support as deprecated
- marked django 2.1 support as deprecated
## 0.6
- marked the `ZERO_DOWNTIME_MIGRATIONS_USE_NOT_NULL` option as deprecated for postgres 12+
- added a management command for migrating from a `CHECK IS NOT NULL` constraint to a real `NOT NULL` constraint
- added integration tests for postgres 12, postgres 11 (root), postgres 11 with compatible not null constraints, postgres 11 with standard not null constraints, as well as postgres 10, 9.6, 9.5, 9.4, and postgis databases
- fixed bugs related to the deletion and creation of compatible check not null constraints via `pg_attribute`
- minimized side effects with deferred sql execution between operations in one migration module
- added safe `NOT NULL` constraint creation for postgres 12
- added safe `NOT NULL` constraint creation for extra permissions for `pg_catalog.pg_attribute` when the `ZERO_DOWNTIME_MIGRATIONS_USE_NOT_NULL=USE_PG_ATTRIBUTE_UPDATE_FOR_SUPERUSER` option is enabled
- marked `AddField` with the `null=False` parameter and the compatible `CHECK IS NOT NULL` constraint option as an unsafe operation, ignoring the `ZERO_DOWNTIME_MIGRATIONS_USE_NOT_NULL` value in this case
- added versioning to the package
- fixed pypi README image links
- improved README
## 0.5
- extracted zero-downtime-schema logic into a mixin to allow using it with other backends
- moved the module from `django_zero_downtime_migrations_postgres_backend` to `django_zero_downtime_migrations.backends.postgres`
- marked the `django_zero_downtime_migrations_postgres_backend` module as deprecated
- added support for the postgis backend
- improved README
## 0.4
- changed the defaults for `ZERO_DOWNTIME_MIGRATIONS_LOCK_TIMEOUT` and `ZERO_DOWNTIME_MIGRATIONS_STATEMENT_TIMEOUT` from `0ms` to `None` to match the default django behavior that respects postgres timeouts
- updated the documentation with option defaults
- updated the documentation with best practices for option usage
- fixed the issue where adding a nullable field with a default did not raise an error or warning
- added links to the documentation describing the issue and safe alternative usage for errors and warnings
- updated the documentation with type casting workarounds
## 0.3
- added django 2.2 support with the `Meta.indexes` and `Meta.constraints` attributes
- fixed python deprecation warnings for regular expressions
- removed the unused `TimeoutException`
- improved README and PYPI description
## 0.2
- added an option to disable `statement_timeout` for long operations, such as index creation and constraint validation, when `statement_timeout` is set globally
## 0.1.1
- added long description content type
## 0.1
- replaced default sql queries with safer alternatives
- added options for `statement_timeout` and `lock_timeout`
- added an option for `NOT NULL` constraint behavior
- added an option for restricting unsafe operations
================================================
FILE: Dockerfile
================================================
FROM --platform=linux/amd64 ubuntu:24.04
ENV LC_ALL=C.UTF-8
ENV LANG=C.UTF-8
ENV DEBIAN_FRONTEND=noninteractive
RUN apt-get update && \
apt-get install -q -y --no-install-recommends software-properties-common git gpg-agent curl && \
add-apt-repository ppa:deadsnakes/ppa && \
echo "deb http://apt.postgresql.org/pub/repos/apt noble-pgdg main" > /etc/apt/sources.list.d/pgdg.list && \
curl -fsSL https://www.postgresql.org/media/keys/ACCC4CF8.asc > /etc/apt/trusted.gpg.d/apt.postgresql.org.asc && \
apt-get update && \
apt-get install -q -y --no-install-recommends \
python3.8 python3.8-distutils \
python3.9 python3.9-distutils \
python3.10 python3.10-distutils \
python3.11 python3.11-distutils \
python3.12 \
python3.13 \
python3-pip \
libgdal34 \
postgresql-client-17 && \
rm -rf /var/lib/apt/lists/* && \
pip3 install --break-system-packages setuptools tox
ADD . /app
WORKDIR /app
CMD ["/bin/bash"]
================================================
FILE: LICENSE
================================================
MIT License
Copyright (c) 2018 Paveł Tyślacki
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
================================================
FILE: MANIFEST.in
================================================
include README.md
include CHANGES.md
include AUTHORS
include LICENSE
global-exclude __pycache__
global-exclude *.py[co]
================================================
FILE: README.md
================================================
[](https://pypi.org/project/django-pg-zero-downtime-migrations/)
[](https://raw.githubusercontent.com/tbicr/django-pg-zero-downtime-migrations/master/LICENSE)
[](https://pypistats.org/packages/django-pg-zero-downtime-migrations)
[](https://github.com/tbicr/django-pg-zero-downtime-migrations/commits/master)
[](https://github.com/tbicr/django-pg-zero-downtime-migrations/actions)
# django-pg-zero-downtime-migrations
Django postgresql backend that apply migrations with respect to database locks.
## Installation
pip install django-pg-zero-downtime-migrations
## Usage
To enable zero downtime migrations for postgres just setup django backend provided by this package and add most safe settings:
DATABASES = {
'default': {
'ENGINE': 'django_zero_downtime_migrations.backends.postgres',
#'ENGINE': 'django_zero_downtime_migrations.backends.postgis',
...
}
}
ZERO_DOWNTIME_MIGRATIONS_LOCK_TIMEOUT = '2s'
ZERO_DOWNTIME_MIGRATIONS_STATEMENT_TIMEOUT = '2s'
ZERO_DOWNTIME_MIGRATIONS_FLEXIBLE_STATEMENT_TIMEOUT = True
ZERO_DOWNTIME_MIGRATIONS_RAISE_FOR_UNSAFE = True
> _NOTE:_ this backend brings zero downtime improvements only for migrations (schema and `RunSQL` operations, but not for `RunPython` operation), for other purpose it works the same as standard django backend.
> _NOTE:_ this package is in beta, please check your migrations SQL before applying on production and submit issue for any question.
### Differences with standard django backend
This backend provides same result state (except of `ZERO_DOWNTIME_MIGRATIONS_KEEP_DEFAULT=True` usage for django < 5.0), but different way and with additional guarantees for avoiding stuck table locks.
This backend doesn't use transactions for migrations (except `RunPython` operation), because not all SQL fixes can be run in transaction and it allows to avoid deadlocks for complex migration. So when your migration will down in the middle of migration file operations you need to fix db state manually (instead potential downtime). For that reason good practice to make migration modules small as possible. Also `ZERO_DOWNTIME_MIGRATIONS_IDEMPOTENT_SQL=True` allows to automate manual db state fixing.
### Deployment flow
There are requirements for zero downtime deployment:
1. We have one database;
1. We have several instances with application - application always should be available, even you restart one of instances;
1. We have balancer before instances;
1. Our application works fine before, on and after migration - old application works fine with old and new database schema version;
1. Our application works fine before, on and after instance updating - old and new application versions work fine with new database schema version.
Flow:
1. apply migrations
1. disconnect instance form balancer, restart it and back to balancer - repeat this operation one by one for all instances
If our deployment don't satisfy zero downtime deployment rules, then we split it to smaller deployments.
### Settings
#### ZERO_DOWNTIME_MIGRATIONS_LOCK_TIMEOUT
Apply [`lock_timeout`](https://www.postgresql.org/docs/current/static/runtime-config-client.html#GUC-LOCK-TIMEOUT) for SQL statements that require `ACCESS EXCLUSIVE` lock, default `None`:
ZERO_DOWNTIME_MIGRATIONS_LOCK_TIMEOUT = '2s'
Allowed values:
- `None` - current postgres setting used
- other - timeout will be applied, `0` and equivalents mean that timeout will be disabled
#### ZERO_DOWNTIME_MIGRATIONS_STATEMENT_TIMEOUT
Apply [`statement_timeout`](https://www.postgresql.org/docs/current/static/runtime-config-client.html#GUC-STATEMENT-TIMEOUT) for SQL statements that require `ACCESS EXCLUSIVE` lock, default `None`:
ZERO_DOWNTIME_MIGRATIONS_STATEMENT_TIMEOUT = '2s'
Allowed values:
- `None` - current postgres setting used
- other - timeout will be applied, `0` and equivalents mean that timeout will be disabled
#### ZERO_DOWNTIME_MIGRATIONS_FLEXIBLE_STATEMENT_TIMEOUT
Set [`statement_timeout`](https://www.postgresql.org/docs/current/static/runtime-config-client.html#GUC-STATEMENT-TIMEOUT) to `0ms` for SQL statements that require `SHARE UPDATE EXCLUSIVE` lock that useful in case when `statement_timeout` enabled globally and you try run long-running operations like index creation or constraint validation, default `False`:
ZERO_DOWNTIME_MIGRATIONS_FLEXIBLE_STATEMENT_TIMEOUT = True
#### ZERO_DOWNTIME_MIGRATIONS_RAISE_FOR_UNSAFE
Enabled option doesn't allow run potential unsafe migration, default `False`:
ZERO_DOWNTIME_MIGRATIONS_RAISE_FOR_UNSAFE = True
#### ZERO_DOWNTIME_DEFERRED_SQL
Define way to apply deferred sql, default `True`:
ZERO_DOWNTIME_DEFERRED_SQL = True
Allowed values:
- `True` - run deferred sql similar to default django way
- `False` - run deferred sql as soon as possible
#### ZERO_DOWNTIME_MIGRATIONS_IDEMPOTENT_SQL
Define idempotent mode, default `False`:
ZERO_DOWNTIME_MIGRATIONS_IDEMPOTENT_SQL = False
Allowed values:
- `True` - skip already applied sql migrations
- `False` - standard non atomic django behaviour
As this backend doesn't use transactions for migrations any failed migration can be cause of stopped process in intermediate state.
To avoid manual schema manipulation idempotent mode allows to rerun failed migration after fixed issue (eg. data issue or long running CRUD queries).
> _NOTE:_ idempotent mode checks rely only on name and index and constraint valid state, so it can ignore name collisions and recommended do not use it for CI checks.
#### ZERO_DOWNTIME_MIGRATIONS_EXPLICIT_CONSTRAINTS_DROP
Define way to drop foreign key, unique constraints and indexes before drop table or column, default `True`:
ZERO_DOWNTIME_MIGRATIONS_EXPLICIT_CONSTRAINTS_DROP = True
Allowed values:
- `True` - before dropping table drop all foreign keys related to this table and before dropping column drop all foreign keys related to this column, unique constraints on this column and indexes used this column.
- `False` - standard django behaviour that will drop constraints with `CASCADE` mode (some constraints can be dropped explicitly too).
Explicitly dropping constraints and indexes before dropping tables or columns allows for splitting schema-only changes with an `ACCESS EXCLUSIVE` lock and the deletion of physical files, which can take significant time and cause downtime.
#### ZERO_DOWNTIME_MIGRATIONS_KEEP_DEFAULT
Define way keep or drop code defaults on database level when adding new column, default `False`:
ZERO_DOWNTIME_MIGRATIONS_KEEP_DEFAULT = False
Allowed values:
- `True` - after adding column with code default this default will not be dropped, this option allows to use `ALTER TABLE ADD COLUMN SET DEFAULT NOT NULL` as safe operation that much more simple and efficient than creating column without default on database level and populating column next
- `False` - after adding column with code default this default will be dropped, this is standard django behaviour
> _NOTE:_ this option works only for django < 5.0, in django 5.0+ explicit [`db_default`](https://docs.djangoproject.com/en/dev/ref/models/fields/#db-default) should be used instead.
#### PgBouncer and timeouts
In case you using [PgBouncer](https://www.pgbouncer.org/) and expect timeouts will work as expected you need make sure that run migrations using [session pool_mode](https://www.pgbouncer.org/config.html#pool_mode) or use direct database connection.
## How it works
### Postgres table level locks
Postgres has different locks on table level that can conflict with each other https://www.postgresql.org/docs/current/static/explicit-locking.html#LOCKING-TABLES:
| | `ACCESS SHARE` | `ROW SHARE` | `ROW EXCLUSIVE` | `SHARE UPDATE EXCLUSIVE` | `SHARE` | `SHARE ROW EXCLUSIVE` | `EXCLUSIVE` | `ACCESS EXCLUSIVE` |
| ------------------------ | :------------: | :---------: | :-------------: | :----------------------: | :-----: | :-------------------: | :---------: | :----------------: |
| `ACCESS SHARE` | | | | | | | | X |
| `ROW SHARE` | | | | | | | X | X |
| `ROW EXCLUSIVE` | | | | | X | X | X | X |
| `SHARE UPDATE EXCLUSIVE` | | | | X | X | X | X | X |
| `SHARE` | | | X | X | | X | X | X |
| `SHARE ROW EXCLUSIVE` | | | X | X | X | X | X | X |
| `EXCLUSIVE` | | X | X | X | X | X | X | X |
| `ACCESS EXCLUSIVE` | X | X | X | X | X | X | X | X |
### Migration and business logic locks
Lets split this lock to migration and business logic operations.
- Migration operations work synchronously in one thread and cover schema migrations (data migrations conflict with business logic operations same as business logic conflict concurrently).
- Business logic operations work concurrently.
#### Migration locks
| lock | operations |
| ------------------------ | ----------------------------------------------------------------------------------------------------- |
| `ACCESS EXCLUSIVE` | `CREATE SEQUENCE`, `DROP SEQUENCE`, `CREATE TABLE`, `DROP TABLE` \*, `ALTER TABLE` \*\*, `DROP INDEX` |
| `SHARE` | `CREATE INDEX` |
| `SHARE UPDATE EXCLUSIVE` | `CREATE INDEX CONCURRENTLY`, `DROP INDEX CONCURRENTLY`, `ALTER TABLE VALIDATE CONSTRAINT` \*\*\* |
\*: `CREATE SEQUENCE`, `DROP SEQUENCE`, `CREATE TABLE`, `DROP TABLE` shouldn't have conflicts, because your business logic shouldn't yet operate with created tables and shouldn't already operate with deleted tables.
\*\*: Not all `ALTER TABLE` operations take `ACCESS EXCLUSIVE` lock, but all current django's migrations take it https://github.com/django/django/blob/master/django/db/backends/base/schema.py, https://github.com/django/django/blob/master/django/db/backends/postgresql/schema.py and https://www.postgresql.org/docs/current/static/sql-altertable.html.
\*\*\*: Django doesn't have `VALIDATE CONSTRAINT` logic, but we will use it for some cases.
#### Business logic locks
| lock | operations | conflict with lock | conflict with operations |
| --------------- | ---------------------------- | --------------------------------------------------------------- | ------------------------------------------- |
| `ACCESS SHARE` | `SELECT` | `ACCESS EXCLUSIVE` | `ALTER TABLE`, `DROP INDEX` |
| `ROW SHARE` | `SELECT FOR UPDATE` | `ACCESS EXCLUSIVE`, `EXCLUSIVE` | `ALTER TABLE`, `DROP INDEX` |
| `ROW EXCLUSIVE` | `INSERT`, `UPDATE`, `DELETE` | `ACCESS EXCLUSIVE`, `EXCLUSIVE`, `SHARE ROW EXCLUSIVE`, `SHARE` | `ALTER TABLE`, `DROP INDEX`, `CREATE INDEX` |
So you can find that all django schema changes for exist table conflicts with business logic, but fortunately they are safe or has safe alternative in general.
### Postgres row level locks
As business logic mostly works with table rows it's also important to understand lock conflicts on row level https://www.postgresql.org/docs/current/static/explicit-locking.html#LOCKING-ROWS:
| lock | `FOR KEY SHARE` | `FOR SHARE` | `FOR NO KEY UPDATE` | `FOR UPDATE` |
| ------------------- | :-------------: | :---------: | :-----------------: | :----------: |
| `FOR KEY SHARE` | | | | X |
| `FOR SHARE` | | | X | X |
| `FOR NO KEY UPDATE` | | X | X | X |
| `FOR UPDATE` | X | X | X | X |
Main point there is if you have two transactions that update one row, then second transaction will wait until first will be completed. So for business logic and data migrations better to avoid updates for whole table and use batch operations instead.
> _NOTE:_ batch operations also can work faster because postgres can use more optimal execution plan with indexes for small data range.
### Transactions FIFO waiting
Found same diagram in interesting article http://pankrat.github.io/2015/django-migrations-without-downtimes/.
In this diagram we can extract several metrics:
1. operation time - time spent changing schema, in the case of long running operations on many rows tables like `CREATE INDEX` or `ALTER TABLE ADD CONSTRAINT`, so you need a safe equivalent.
2. waiting time - your migration will wait until all transactions complete, so there is issue for long running operations/transactions like analytic, so you need avoid it or disable during migration.
3. queries per second + execution time and connections pool - if executing many queries, especially long running ones, they can consume all available database connections until the lock is released, so you need different optimizations there: run migrations when least busy, decrease query count and execution time, split data.
4. too many operations in one transaction - you have issues in all previous points for one operation so if you have many operations in one transaction then you have more likelihood to get this issue, so you need avoid too many simultaneous operations in a single transaction (or even not run it in a transaction at all but being careful when an operation fails).
### Dealing with timeouts
Postgres has two settings to dealing with `waiting time` and `operation time` presented in diagram: `lock_timeout` and `statement_timeout`.
`SET lock_timeout TO '2s'` allow you to avoid downtime when you have long running query/transaction before run migration (https://www.postgresql.org/docs/current/static/runtime-config-client.html#GUC-LOCK-TIMEOUT).
`SET statement_timeout TO '2s'` allow you to avoid downtime when you have long running migration query (https://www.postgresql.org/docs/current/static/runtime-config-client.html#GUC-STATEMENT-TIMEOUT).
### Deadlocks
There no downtime issues for deadlocks, but too many operations in one transaction can take most conflicted lock and release it only after transaction commit or rollback. So it's a good idea to avoid `ACCESS EXCLUSIVE` lock operations and long time operations in one transaction. Deadlocks also can make you migration stuck on production deployment when different tables will be locked, for example, for FOREIGN KEY that take `ACCESS EXCLUSIVE` lock for two tables.
### Rows and values storing
Postgres store values of different types different ways. If you try to convert one type to another and it stored different way then postgres will rewrite all values. Fortunately some types stored same way and postgres need to do nothing to change type, but in some cases postgres need to check that all values have same with new type limitations, for example string length.
### Multiversion Concurrency Control
Regarding documentation https://www.postgresql.org/docs/current/static/mvcc-intro.html data consistency in postgres is maintained by using a multiversion model. This means that each SQL statement sees a snapshot of data. It has advantage for adding and deleting columns without any indexes, CONSTRAINTS and defaults do not change exist data, new version of data will be created on `INSERT` and `UPDATE`, delete just mark you record expired. All garbage will be collected later by `VACUUM` or `AUTO VACUUM`.
### Django migrations hacks
Any schema changes can be processed with creation of new table and copy data to it, but it can take significant time.
| # | name | safe | safe alternative | description |
| --: |-----------------------------------------------|:----:|:-----------------------------:|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 1 | `CREATE SEQUENCE` | X | | safe operation, because your business logic shouldn't operate with new sequence on migration time \* |
| 2 | `DROP SEQUENCE` | X | | safe operation, because your business logic shouldn't operate with this sequence on migration time \* |
| 3 | `CREATE TABLE` | X | | safe operation, because your business logic shouldn't operate with new table on migration time \* |
| 4 | `DROP TABLE` | X | | safe operation, because your business logic shouldn't operate with this table on migration time \* |
| 5 | `ALTER TABLE RENAME TO` | | use updatable view | **unsafe operation**, because it's too hard write business logic that operate with two tables simultaneously, so propose to use temporary updatable view and switch names in transaction \* |
| 6 | `ALTER TABLE SET TABLESPACE` | | add new table and copy data | **unsafe operation**, but probably you don't need it at all or often \* |
| 7 | `ALTER TABLE ADD COLUMN` | X | | safe operation if without `SET NOT NULL`, `PRIMARY KEY`, `UNIQUE` \* |
| 8 | `ALTER TABLE ADD COLUMN SET DEFAULT` | X | | safe operation, however it can be unsafe if code default used within `NOT NULL`, for `db_default` or `NULL` there are no issue \* |
| 9 | `ALTER TABLE ADD COLUMN SET NOT NULL` | | +/- | **unsafe operation**, because doesn't work without `SET DEFAULT` or after migration old code can insert rows without new column and raise exception, so propose to use `ALTER TABLE ADD COLUMN SET DEFAULT` with `db_default` or `ALTER TABLE ADD COLUMN` and then populate column and then `ALTER TABLE ALTER COLUMN SET NOT NULL` \* and \*\* |
| 10 | `ALTER TABLE ADD COLUMN PRIMARY KEY` | | add index and add constraint | **unsafe operation**, because you spend time in migration to `CREATE INDEX`, so propose `ALTER TABLE ADD COLUMN` and then `CREATE INDEX CONCURRENTLY` and then `ALTER TABLE ADD CONSTRAINT PRIMARY KEY USING INDEX` \*\*\* |
| 11 | `ALTER TABLE ADD COLUMN UNIQUE` | | add index and add constraint | **unsafe operation**, because you spend time in migration to `CREATE INDEX`, so propose `ALTER TABLE ADD COLUMN` and then `CREATE INDEX CONCURRENTLY` and then `ALTER TABLE ADD CONSTRAINT UNIQUE USING INDEX` \*\*\* |
| 12 | `ALTER TABLE ALTER COLUMN TYPE` | | +/- | **unsafe operation**, because you spend time in migration to check that all items in column valid or to change type, but some operations can be safe \*\*\*\* |
| 13 | `ALTER TABLE ALTER COLUMN SET NOT NULL` | | add check constraint before | **unsafe operation**, because you spend time in migration to check that all items in column `NOT NULL`, so propose `ALTER TABLE ADD CONSTRAINT CHECK` and then `ALTER TABLE VALIDATE CONSTRAINT` and then `ALTER TABLE ALTER COLUMN SET NOT NULL` *\* |
| 14 | `ALTER TABLE ALTER COLUMN DROP NOT NULL` | X | | safe operation |
| 15 | `ALTER TABLE ALTER COLUMN SET DEFAULT` | X | | safe operation |
| 16 | `ALTER TABLE ALTER COLUMN DROP DEFAULT` | X | | safe operation |
| 17 | `ALTER TABLE DROP COLUMN` | X | | safe operation, because your business logic shouldn't operate with this column on migration time, however better `ALTER TABLE ALTER COLUMN DROP NOT NULL`, `ALTER TABLE DROP CONSTRAINT` and `DROP INDEX` before \* and \*\*\*\*\* |
| 18 | `ALTER TABLE RENAME COLUMN` | | use updatable view | **unsafe operation**, because it's too hard write business logic that operate with two columns simultaneously, so propose to use temporary updatable view and switch names in transaction \* |
| 19 | `ALTER TABLE ADD CONSTRAINT CHECK` | | add as not valid and validate | **unsafe operation**, because you spend time in migration to check constraint |
| 20 | `ALTER TABLE DROP CONSTRAINT` (`CHECK`) | X | | safe operation |
| 21 | `ALTER TABLE ADD CONSTRAINT FOREIGN KEY` | | add as not valid and validate | **unsafe operation**, because you spend time in migration to check constraint, lock two tables |
| 22 | `ALTER TABLE DROP CONSTRAINT` (`FOREIGN KEY`) | X | | safe operation, lock two tables |
| 23 | `ALTER TABLE ADD CONSTRAINT PRIMARY KEY` | | add index and add constraint | **unsafe operation**, because you spend time in migration to create index \*\*\* |
| 24 | `ALTER TABLE DROP CONSTRAINT` (`PRIMARY KEY`) | X | | safe operation \*\*\* |
| 25 | `ALTER TABLE ADD CONSTRAINT UNIQUE` | | add index and add constraint | **unsafe operation**, because you spend time in migration to create index \*\*\* |
| 26 | `ALTER TABLE DROP CONSTRAINT` (`UNIQUE`) | X | | safe operation \*\*\* |
| 27 | `ALTER TABLE ADD CONSTRAINT EXCLUDE` | | add new table and copy data | |
| 28 | `ALTER TABLE DROP CONSTRAINT (EXCLUDE)` | X | | |
| 29 | `CREATE INDEX` | | `CREATE INDEX CONCURRENTLY` | **unsafe operation**, because you spend time in migration to create index |
| 30 | `DROP INDEX` | X | `DROP INDEX CONCURRENTLY` | safe operation \*\*\* |
| 31 | `CREATE INDEX CONCURRENTLY` | X | | safe operation |
| 32 | `DROP INDEX CONCURRENTLY` | X | | safe operation \*\*\* |
\*: main point with migration on production without downtime that your old and new code should correctly work before and after migration, lets look this point closely in [Dealing with logic that should work before and after migration](#dealing-with-logic-that-should-work-before-and-after-migration) section.
\*\*: postgres will check that all items in column `NOT NULL` that take time, lets look this point closely in [Dealing with `NOT NULL` constraint](#dealing-with-not-null-constraint) section.
\*\*\*: postgres will have same behaviour when you skip `ALTER TABLE ADD CONSTRAINT UNIQUE USING INDEX` and still unclear difference with `CONCURRENTLY` except difference in locks, lets look this point closely in [Dealing with `UNIQUE` constraint](#dealing-with-unique-constraint).
\*\*\*\*: lets look this point closely in [Dealing with `ALTER TABLE ALTER COLUMN TYPE`](#dealing-with-alter-table-alter-column-type) section.
\*\*\*\*\*: if you check migration on CI with `python manage.py makemigrations --check` you can't drop column in code without migration creation, so in this case you can be useful _back migration flow_: apply code on all instances and then migrate database
#### Dealing with logic that should work before and after migration
##### Adding and removing models and columns
Migrations: `CREATE SEQUENCE`, `DROP SEQUENCE`, `CREATE TABLE`, `DROP TABLE`, `ALTER TABLE ADD COLUMN`, `ALTER TABLE DROP COLUMN`.
This migrations are pretty safe, because your logic doesn't work with this data before migration
##### Rename models
Migrations: `ALTER TABLE RENAME TO`.
Standard django's approach does not allow to operate simultaneously for old and new code with old and new table name, hopefully next workaround allows to rename table by splitting migration to few steps:
1. provide code changes but replace standard migration with [SeparateDatabaseAndState](https://docs.djangoproject.com/en/dev/ref/migration-operations/#separatedatabaseandstate) sql operation that **in transaction** rename table and create [updatable view](https://www.postgresql.org/docs/current/sql-createview.html#SQL-CREATEVIEW-UPDATABLE-VIEWS) that has old table name
- old code can work with [updatable view](https://www.postgresql.org/docs/current/sql-createview.html#SQL-CREATEVIEW-UPDATABLE-VIEWS) by old name
- new code can work with table by new name
2. after new code deployment old code is not used anymore, so we can drop view
- new code can work with renamed table
##### Rename columns
Migrations: `ALTER TABLE RENAME COLUMN`.
Standard django's approach does not allow to operate simultaneously for old and new code with old and new column name, hopefully next workaround allows to rename column by splitting migration to few steps:
1. provide code changes but replace standard migration with [SeparateDatabaseAndState](https://docs.djangoproject.com/en/dev/ref/migration-operations/#separatedatabaseandstate) sql operation that **in transaction** rename column, rename table to temporary and create [updatable view](https://www.postgresql.org/docs/current/sql-createview.html#SQL-CREATEVIEW-UPDATABLE-VIEWS) that has old table name with both old and new columns
- old code can work with new [updatable view](https://www.postgresql.org/docs/current/sql-createview.html#SQL-CREATEVIEW-UPDATABLE-VIEWS) and use old column
- new code can work with new [updatable view](https://www.postgresql.org/docs/current/sql-createview.html#SQL-CREATEVIEW-UPDATABLE-VIEWS) and use new column
2. after new code deployment old code is not used anymore, so **in transaction** we can drop view and rename table back
- new code can work with renamed column
##### Changes for working logic
Migrations: `ALTER TABLE SET TABLESPACE`, `ALTER TABLE ADD CONSTRAINT EXCLUDE`.
For this migration too hard implement logic that will work correctly for all instances, so there are two ways to dealing with it:
1. create new table, copy exist data, drop old table
2. downtime
##### Create column not null
Migrations: `ALTER TABLE ADD COLUMN NOT NULL`.
Postgres doesn't allow to create column with `NOT NULL` if table not empty and `DEFAULT` is not provided. So you want to `ALTER TABLE ADD COLUMN DEFAULT NOT NULL`.
Django has two ways to create column default: [code `default`](https://docs.djangoproject.com/en/dev/ref/models/fields/#default) and [`db_default` for django 5.0+](https://docs.djangoproject.com/en/dev/ref/models/fields/#db-default).
Main difference between them for us in operations they do for migration and old code inserts handling after migration:
Code `default` migration and business logic SQL:
```sql
-- migration
ALTER TABLE tbl ADD COLUMN new_col integer DEFAULT 0 NOT NULL;
ALTER TABLE tbl ALTER COLUMN new_col DROP DEFAULT;
-- business logic
INSERT INTO tbl (old_col) VALUES (1); -- old code inserts fail
INSERT INTO tbl (old_col, new_col) VALUES (1, 1); -- new code inserts work fine
```
`db_default` migration and business logic SQL:
```sql
-- migration
ALTER TABLE tbl ADD COLUMN new_col integer DEFAULT 0 NOT NULL;
-- business logic
INSERT INTO tbl (old_col) VALUES (1); -- old code inserts work fine with default
INSERT INTO tbl (old_col, new_col) VALUES (1, 1); -- new code inserts work fine
```
`db_default` is most robust way to apply default and it's works fine with `NOT NULL` constraints too.
In django<5.0 you can use `ZERO_DOWNTIME_MIGRATIONS_KEEP_DEFAULT=True` to emulate `db_default` behaviour for `default` field.
#### Dealing with `NOT NULL` column constraint
Postgres checks that all column values `NOT NULL` (full table scan) when you are applying `ALTER TABLE ALTER COLUMN SET NOT NULL`, this check skipped if appropriate valid `CHECK CONSTRAINT` exists for postgres 12+. So to make existing column `NOT NULL` safe way you can follow next steps:
- `ALTER TABLE ADD CONSTRAINT CHECK (column IS NOT NULL) NOT VALID` - create invalid check constraint for column, this operation takes `ACCESS EXCLUSIVE` lock only for table metadata update
- `ALTER TABLE VALIDATE CONSTRAINT` - validate constraint, at this moment all column values should be `NOT NULL`, this operation takes `SHARE UPDATE EXCLUSIVE` lock until full table scan will be completed
- `ALTER TABLE ALTER COLUMN SET NOT NULL` - set column `NOT NULL` don't check column values if appropriate valid `CHECK CONSTRAINT` exists, in this case this operation takes `ACCESS EXCLUSIVE` lock only for table metadata update
- `ALTER TABLE DROP CONSTRAINT` - clean up `CHECK CONSTRAINT` that duplicates column `NOT NULL`, this operation takes `ACCESS EXCLUSIVE` lock only for table metadata update
#### Dealing with `UNIQUE` constraint
Postgres has two approaches for uniqueness: `CREATE UNIQUE INDEX` and `ALTER TABLE ADD CONSTRAINT UNIQUE` - both use unique index inside. Difference that we can find that we cannot apply `DROP INDEX CONCURRENTLY` for constraint. However it still unclear what difference for `DROP INDEX` and `DROP INDEX CONCURRENTLY` except difference in locks, but as we seen before both marked as safe - we don't spend time in `DROP INDEX`, just wait for lock. So as django use constraint for uniqueness we also have a hacks to use constraint safely.
#### Dealing with `ALTER TABLE ALTER COLUMN TYPE`
Next operations are safe:
1. `varchar(LESS)` to `varchar(MORE)` where LESS < MORE
2. `varchar(ANY)` to `text`
3. `numeric(LESS, SAME)` to `numeric(MORE, SAME)` where LESS < MORE and SAME == SAME
For other operations propose to create new column and copy data to it. Eg. some types can be also safe, but you should check yourself.
================================================
FILE: django_zero_downtime_migrations/__init__.py
================================================
__version__ = "0.19"
================================================
FILE: django_zero_downtime_migrations/backends/__init__.py
================================================
================================================
FILE: django_zero_downtime_migrations/backends/postgis/__init__.py
================================================
================================================
FILE: django_zero_downtime_migrations/backends/postgis/base.py
================================================
from django.contrib.gis.db.backends.postgis.base import (
DatabaseWrapper as PostGISDatabaseWrapper
)
from .schema import DatabaseSchemaEditor
class DatabaseWrapper(PostGISDatabaseWrapper):
SchemaEditorClass = DatabaseSchemaEditor
================================================
FILE: django_zero_downtime_migrations/backends/postgis/schema.py
================================================
from django.contrib.gis.db.backends.postgis.schema import PostGISSchemaEditor
from django_zero_downtime_migrations.backends.postgres.schema import (
DatabaseSchemaEditorMixin
)
class DatabaseSchemaEditor(DatabaseSchemaEditorMixin, PostGISSchemaEditor):
pass
================================================
FILE: django_zero_downtime_migrations/backends/postgres/__init__.py
================================================
================================================
FILE: django_zero_downtime_migrations/backends/postgres/base.py
================================================
from django.db.backends.postgresql.base import (
DatabaseWrapper as PostgresDatabaseWrapper
)
from .schema import DatabaseSchemaEditor
class DatabaseWrapper(PostgresDatabaseWrapper):
SchemaEditorClass = DatabaseSchemaEditor
================================================
FILE: django_zero_downtime_migrations/backends/postgres/schema.py
================================================
import re
import warnings
from contextlib import contextmanager
import django
from django.conf import settings
from django.contrib.postgres.constraints import ExclusionConstraint
from django.db.backends.ddl_references import Statement, Table
from django.db.backends.postgresql.schema import (
DatabaseSchemaEditor as PostgresDatabaseSchemaEditor
)
from django.db.models import NOT_PROVIDED
class Unsafe:
ADD_COLUMN_NOT_NULL = (
"ADD COLUMN NOT NULL is unsafe operation\n"
"See details for safe alternative "
"https://github.com/tbicr/django-pg-zero-downtime-migrations#create-column-not-null"
)
ALTER_COLUMN_TYPE = (
"ALTER COLUMN TYPE is unsafe operation\n"
"See details for safe alternative "
"https://github.com/tbicr/django-pg-zero-downtime-migrations#dealing-with-alter-table-alter-column-type"
)
ADD_CONSTRAINT_EXCLUDE = (
"ADD CONSTRAINT EXCLUDE is unsafe operation\n"
"See details for safe alternative "
"https://github.com/tbicr/django-pg-zero-downtime-migrations#changes-for-working-logic"
)
ALTER_TABLE_RENAME = (
"ALTER TABLE RENAME is unsafe operation\n"
"See details for save alternative "
"https://github.com/tbicr/django-pg-zero-downtime-migrations#rename-models"
)
ALTER_TABLE_SET_TABLESPACE = (
"ALTER TABLE SET TABLESPACE is unsafe operation\n"
"See details for save alternative "
"https://github.com/tbicr/django-pg-zero-downtime-migrations#changes-for-working-logic"
)
ALTER_TABLE_RENAME_COLUMN = (
"ALTER TABLE RENAME COLUMN is unsafe operation\n"
"See details for save alternative "
"https://github.com/tbicr/django-pg-zero-downtime-migrations#rename-columns"
)
class UnsafeOperationWarning(Warning):
pass
class UnsafeOperationException(Exception):
pass
class DummySQL:
def __mod__(self, other):
return DUMMY_SQL
def format(self, *args, **kwargs):
return DUMMY_SQL
DUMMY_SQL = DummySQL()
class Condition:
def __init__(self, sql, exists, idempotent_mode_only=False):
self.sql = sql
self.exists = exists
self.idempotent_mode_only = idempotent_mode_only
def __str__(self):
return self.sql
def __repr__(self):
return str(self)
def __mod__(self, other):
return self.__class__(
sql=self.sql % other,
exists=self.exists,
idempotent_mode_only=self.idempotent_mode_only,
)
def format(self, *args, **kwargs):
return self.__class__(
sql=self.sql.format(*args, **kwargs),
exists=self.exists,
idempotent_mode_only=self.idempotent_mode_only,
)
class MultiStatementSQL(list):
def __init__(self, obj, *args):
if args:
obj = [obj] + list(args)
super().__init__(obj)
def __str__(self):
return '\n'.join(s.rstrip(';') + ';' for s in self)
def __repr__(self):
return str(self)
def __mod__(self, other):
if other is DUMMY_SQL:
return DUMMY_SQL
if isinstance(other, (list, tuple)) and any(arg is DUMMY_SQL for arg in other):
return DUMMY_SQL
if isinstance(other, dict) and any(val is DUMMY_SQL for val in other.values()):
return DUMMY_SQL
return MultiStatementSQL(s % other for s in self)
def format(self, *args, **kwargs):
if any(arg is DUMMY_SQL for arg in args) or any(val is DUMMY_SQL for val in kwargs.values()):
return DUMMY_SQL
return MultiStatementSQL(s.format(*args, **kwargs) for s in self)
class PGLock:
def __init__(
self,
sql,
*,
use_timeouts=False,
disable_statement_timeout=False,
idempotent_condition=None,
):
self.sql = sql
if use_timeouts and disable_statement_timeout:
raise ValueError("Can't apply use_timeouts and disable_statement_timeout simultaneously.")
self.use_timeouts = use_timeouts
self.disable_statement_timeout = disable_statement_timeout
self.idempotent_condition = idempotent_condition
def __str__(self):
return self.sql
def __repr__(self):
return str(self)
def __mod__(self, other):
if other is DUMMY_SQL:
return DUMMY_SQL
if isinstance(other, (list, tuple)) and any(arg is DUMMY_SQL for arg in other):
return DUMMY_SQL
if isinstance(other, dict) and any(val is DUMMY_SQL for val in other.values()):
return DUMMY_SQL
return self.__class__(
self.sql % other,
use_timeouts=self.use_timeouts,
disable_statement_timeout=self.disable_statement_timeout,
idempotent_condition=self.idempotent_condition % other
if self.idempotent_condition is not None else None,
)
def format(self, *args, **kwargs):
if any(arg is DUMMY_SQL for arg in args) or any(val is DUMMY_SQL for val in kwargs.values()):
return DUMMY_SQL
return self.__class__(
self.sql.format(*args, **kwargs),
use_timeouts=self.use_timeouts,
disable_statement_timeout=self.disable_statement_timeout,
idempotent_condition=self.idempotent_condition.format(*args, **kwargs)
if self.idempotent_condition is not None else None,
)
class PGAccessExclusive(PGLock):
def __init__(
self,
sql,
*,
use_timeouts=True,
disable_statement_timeout=False,
idempotent_condition=None,
):
super().__init__(
sql,
use_timeouts=use_timeouts,
disable_statement_timeout=disable_statement_timeout,
idempotent_condition=idempotent_condition,
)
class PGShareUpdateExclusive(PGLock):
def __init__(
self,
sql,
*,
use_timeouts=False,
disable_statement_timeout=True,
idempotent_condition=None,
):
super().__init__(
sql,
use_timeouts=use_timeouts,
disable_statement_timeout=disable_statement_timeout,
idempotent_condition=idempotent_condition,
)
class DatabaseSchemaEditorMixin:
ZERO_TIMEOUT = '0ms'
_sql_get_lock_timeout = "SELECT setting || unit FROM pg_settings WHERE name = 'lock_timeout'"
_sql_get_statement_timeout = "SELECT setting || unit FROM pg_settings WHERE name = 'statement_timeout'"
_sql_set_lock_timeout = "SET lock_timeout TO '%(lock_timeout)s'"
_sql_set_statement_timeout = "SET statement_timeout TO '%(statement_timeout)s'"
_sql_identity_exists = (
"SELECT 1 FROM information_schema.columns "
"WHERE table_name = TRIM('\"' FROM '%(table)s') "
"AND column_name = TRIM('\"' FROM '%(column)s')"
"AND is_identity = 'YES'"
)
_sql_sequence_exists = "SELECT 1 FROM pg_class WHERE relname = TRIM('\"' FROM '%(name)s')"
_sql_index_exists = "SELECT 1 FROM pg_class WHERE relname = TRIM('\"' FROM '%(name)s')"
_sql_table_exists = "SELECT 1 FROM pg_class WHERE relname = TRIM('\"' FROM '%(table)s')"
_sql_new_table_exists = "SELECT 1 FROM pg_class WHERE relname = TRIM('\"' FROM '%(new_table)s')"
_sql_column_exists = (
"SELECT 1 FROM information_schema.columns "
"WHERE table_name = TRIM('\"' FROM '%(table)s') "
"AND column_name = TRIM('\"' FROM '%(column)s')"
)
_sql_new_column_exists = (
"SELECT 1 FROM information_schema.columns "
"WHERE table_name = TRIM('\"' FROM '%(table)s') "
"AND column_name = TRIM('\"' FROM '%(new_column)s')"
)
_sql_constraint_exists = (
"SELECT 1 FROM information_schema.table_constraints "
"WHERE table_name = TRIM('\"' FROM '%(table)s') "
"AND constraint_name = TRIM('\"' FROM '%(name)s')"
)
_sql_index_valid = (
"SELECT 1 "
"FROM pg_index "
"WHERE indrelid = TRIM('\"' FROM '%(table)s')::regclass::oid "
"AND indexrelid = TRIM('\"' FROM '%(name)s')::regclass::oid "
"AND indisvalid"
)
_sql_constraint_valid = (
"SELECT 1 "
"FROM pg_constraint "
"WHERE conrelid = TRIM('\"' FROM '%(table)s')::regclass::oid "
"AND conname = TRIM('\"' FROM '%(name)s') "
"AND convalidated"
)
sql_alter_sequence_type = PGAccessExclusive(PostgresDatabaseSchemaEditor.sql_alter_sequence_type)
sql_add_identity = PGAccessExclusive(
PostgresDatabaseSchemaEditor.sql_add_identity,
idempotent_condition=Condition(_sql_identity_exists, False),
)
sql_drop_indentity = PGAccessExclusive(PostgresDatabaseSchemaEditor.sql_drop_indentity)
sql_delete_sequence = PGAccessExclusive(PostgresDatabaseSchemaEditor.sql_delete_sequence)
sql_create_table = PGAccessExclusive(
PostgresDatabaseSchemaEditor.sql_create_table,
idempotent_condition=Condition(_sql_table_exists, False),
use_timeouts=False,
)
sql_delete_table = PGAccessExclusive(
PostgresDatabaseSchemaEditor.sql_delete_table,
idempotent_condition=Condition(_sql_table_exists, True),
use_timeouts=False,
)
sql_rename_table = PGAccessExclusive(
PostgresDatabaseSchemaEditor.sql_rename_table,
idempotent_condition=Condition(_sql_new_table_exists, False),
)
sql_retablespace_table = PGAccessExclusive(PostgresDatabaseSchemaEditor.sql_retablespace_table)
sql_create_column_inline_fk = None
sql_create_column = PGAccessExclusive(
PostgresDatabaseSchemaEditor.sql_create_column,
idempotent_condition=Condition(_sql_column_exists, False),
)
sql_alter_column = PGAccessExclusive(PostgresDatabaseSchemaEditor.sql_alter_column)
sql_delete_column = PGAccessExclusive(
PostgresDatabaseSchemaEditor.sql_delete_column,
idempotent_condition=Condition(_sql_column_exists, True),
)
sql_rename_column = PGAccessExclusive(
PostgresDatabaseSchemaEditor.sql_rename_column,
idempotent_condition=Condition(_sql_new_column_exists, False),
)
sql_create_check = MultiStatementSQL(
PGAccessExclusive(
"ALTER TABLE %(table)s ADD CONSTRAINT %(name)s CHECK (%(check)s) NOT VALID",
idempotent_condition=Condition(_sql_constraint_exists, False),
),
PGShareUpdateExclusive(
"ALTER TABLE %(table)s VALIDATE CONSTRAINT %(name)s",
disable_statement_timeout=True,
),
)
sql_delete_check = PGAccessExclusive(
PostgresDatabaseSchemaEditor.sql_delete_check,
idempotent_condition=Condition(_sql_constraint_exists, True),
)
if django.VERSION[:2] >= (5, 0):
sql_create_unique = MultiStatementSQL(
PGShareUpdateExclusive(
"CREATE UNIQUE INDEX CONCURRENTLY %(name)s ON %(table)s (%(columns)s)%(nulls_distinct)s",
idempotent_condition=Condition(_sql_index_exists, False),
disable_statement_timeout=True,
),
PGShareUpdateExclusive(
"REINDEX INDEX CONCURRENTLY %(name)s",
idempotent_condition=Condition(_sql_index_valid, False, idempotent_mode_only=True),
disable_statement_timeout=True,
),
PGAccessExclusive(
"ALTER TABLE %(table)s ADD CONSTRAINT %(name)s UNIQUE USING INDEX %(name)s%(deferrable)s",
idempotent_condition=Condition(_sql_constraint_exists, False),
),
)
else:
sql_create_unique = MultiStatementSQL(
PGShareUpdateExclusive(
"CREATE UNIQUE INDEX CONCURRENTLY %(name)s ON %(table)s (%(columns)s)",
idempotent_condition=Condition(_sql_index_exists, False),
disable_statement_timeout=True,
),
PGShareUpdateExclusive(
"REINDEX INDEX CONCURRENTLY %(name)s",
idempotent_condition=Condition(_sql_index_valid, False, idempotent_mode_only=True),
disable_statement_timeout=True,
),
PGAccessExclusive(
"ALTER TABLE %(table)s ADD CONSTRAINT %(name)s UNIQUE USING INDEX %(name)s%(deferrable)s",
idempotent_condition=Condition(_sql_constraint_exists, False),
),
)
sql_delete_unique = PGAccessExclusive(
PostgresDatabaseSchemaEditor.sql_delete_unique,
idempotent_condition=Condition(_sql_constraint_exists, True),
)
sql_create_fk = MultiStatementSQL(
PGAccessExclusive(
"ALTER TABLE %(table)s ADD CONSTRAINT %(name)s FOREIGN KEY (%(column)s) "
"REFERENCES %(to_table)s (%(to_column)s)%(deferrable)s NOT VALID",
idempotent_condition=Condition(_sql_constraint_exists, False),
),
PGShareUpdateExclusive(
"ALTER TABLE %(table)s VALIDATE CONSTRAINT %(name)s",
disable_statement_timeout=True,
),
)
sql_delete_fk = PGAccessExclusive(
PostgresDatabaseSchemaEditor.sql_delete_fk,
idempotent_condition=Condition(_sql_constraint_exists, True),
)
sql_create_pk = MultiStatementSQL(
PGShareUpdateExclusive(
"CREATE UNIQUE INDEX CONCURRENTLY %(name)s ON %(table)s (%(columns)s)",
idempotent_condition=Condition(_sql_index_exists, False),
disable_statement_timeout=True,
),
PGShareUpdateExclusive(
"REINDEX INDEX CONCURRENTLY %(name)s",
idempotent_condition=Condition(_sql_index_valid, False, idempotent_mode_only=True),
disable_statement_timeout=True,
),
PGAccessExclusive(
"ALTER TABLE %(table)s ADD CONSTRAINT %(name)s PRIMARY KEY USING INDEX %(name)s",
idempotent_condition=Condition(_sql_constraint_exists, False),
),
)
sql_delete_pk = PGAccessExclusive(
PostgresDatabaseSchemaEditor.sql_delete_pk,
idempotent_condition=Condition(_sql_constraint_exists, True),
)
sql_create_index = MultiStatementSQL(
PGShareUpdateExclusive(
PostgresDatabaseSchemaEditor.sql_create_index_concurrently,
idempotent_condition=Condition(_sql_index_exists, False),
disable_statement_timeout=True,
),
PGShareUpdateExclusive(
"REINDEX INDEX CONCURRENTLY %(name)s",
idempotent_condition=Condition(_sql_index_valid, False, idempotent_mode_only=True),
disable_statement_timeout=True,
),
)
sql_create_index_concurrently = MultiStatementSQL(
PGShareUpdateExclusive(
PostgresDatabaseSchemaEditor.sql_create_index_concurrently,
idempotent_condition=Condition(_sql_index_exists, False),
disable_statement_timeout=True,
),
PGShareUpdateExclusive(
"REINDEX INDEX CONCURRENTLY %(name)s",
idempotent_condition=Condition(_sql_index_valid, False, idempotent_mode_only=True),
disable_statement_timeout=True,
),
)
if django.VERSION[:2] >= (5, 0):
sql_create_unique_index = MultiStatementSQL(
PGShareUpdateExclusive(
"CREATE UNIQUE INDEX CONCURRENTLY %(name)s ON %(table)s "
"(%(columns)s)%(include)s%(nulls_distinct)s%(condition)s",
idempotent_condition=Condition(_sql_index_exists, False),
disable_statement_timeout=True,
),
PGShareUpdateExclusive(
"REINDEX INDEX CONCURRENTLY %(name)s",
idempotent_condition=Condition(_sql_index_valid, False, idempotent_mode_only=True),
disable_statement_timeout=True,
),
)
else:
sql_create_unique_index = MultiStatementSQL(
PGShareUpdateExclusive(
"CREATE UNIQUE INDEX CONCURRENTLY %(name)s ON %(table)s "
"(%(columns)s)%(include)s%(condition)s",
idempotent_condition=Condition(_sql_index_exists, False),
disable_statement_timeout=True,
),
PGShareUpdateExclusive(
"REINDEX INDEX CONCURRENTLY %(name)s",
idempotent_condition=Condition(_sql_index_valid, False, idempotent_mode_only=True),
disable_statement_timeout=True,
),
)
sql_delete_index = PGShareUpdateExclusive("DROP INDEX CONCURRENTLY IF EXISTS %(name)s")
sql_delete_index_concurrently = PGShareUpdateExclusive(
PostgresDatabaseSchemaEditor.sql_delete_index_concurrently
)
sql_alter_table_comment = PGShareUpdateExclusive(PostgresDatabaseSchemaEditor.sql_alter_table_comment)
sql_alter_column_comment = PGShareUpdateExclusive(PostgresDatabaseSchemaEditor.sql_alter_column_comment)
_sql_column_not_null = MultiStatementSQL(
PGAccessExclusive(
"ALTER TABLE %(table)s ADD CONSTRAINT %(name)s CHECK (%(column)s IS NOT NULL) NOT VALID",
idempotent_condition=Condition(_sql_constraint_exists, False),
),
PGShareUpdateExclusive(
"ALTER TABLE %(table)s VALIDATE CONSTRAINT %(name)s",
disable_statement_timeout=True,
),
PGAccessExclusive("ALTER TABLE %(table)s ALTER COLUMN %(column)s SET NOT NULL"),
PGAccessExclusive(
"ALTER TABLE %(table)s DROP CONSTRAINT %(name)s",
idempotent_condition=Condition(_sql_constraint_exists, True),
),
)
_sql_get_table_constraints_introspection = r"""
SELECT
c.conname,
c.contype,
c.conrelid::regclass::text,
c.confrelid::regclass::text,
array(
SELECT attname
FROM unnest(c.conkey) WITH ORDINALITY cols(colid, arridx)
JOIN pg_attribute AS ca ON cols.colid = ca.attnum
WHERE ca.attrelid = c.conrelid
ORDER BY cols.arridx
),
array(
SELECT attname
FROM unnest(c.confkey) WITH ORDINALITY cols(colid, arridx)
JOIN pg_attribute AS ca ON cols.colid = ca.attnum
WHERE ca.attrelid = c.confrelid
ORDER BY cols.arridx
)
FROM pg_constraint AS c
WHERE c.conrelid::regclass::text = %s
OR c.confrelid::regclass::text = %s
ORDER BY c.conrelid::regclass::text, c.conname
"""
_sql_get_index_introspection = r"""
SELECT
i.indexrelid::regclass::text,
i.indrelid::regclass::text,
array(
SELECT a.attname
FROM (
SELECT unnest(i.indkey)
UNION
SELECT unnest(regexp_matches(i.indexprs::text, ':varattno (\d+)', 'g'))::int
UNION
SELECT unnest(regexp_matches(i.indpred::text, ':varattno (\d+)', 'g'))::int
) cols(varattno)
INNER JOIN pg_attribute AS a ON cols.varattno = a.attnum
WHERE a.attrelid = i.indrelid
)
FROM pg_index i
LEFT JOIN pg_constraint c ON i.indexrelid = c.conindid
WHERE indrelid::regclass::text = %s
AND c.conindid IS NULL
ORDER BY i.indrelid::regclass::text, i.indexrelid::regclass::text
"""
_varchar_type_regexp = re.compile(r'^varchar\((?P<max_length>\d+)\)$')
_numeric_type_regexp = re.compile(r'^numeric\((?P<precision>\d+), *(?P<scale>\d+)\)$')
@property
def sql_alter_column_no_default_null(self):
if self.KEEP_DEFAULT:
return DUMMY_SQL
return super().sql_alter_column_no_default_null
@property
def sql_alter_column_no_default(self):
if self.KEEP_DEFAULT:
return DUMMY_SQL
return super().sql_alter_column_no_default
def __init__(self, connection, collect_sql=False, atomic=True):
# Disable atomic transactions as it can be reason of downtime or deadlock
# in case if you combine many operation in one migration module.
super().__init__(connection, collect_sql=collect_sql, atomic=False)
# Avoid using DUMMY_SQL in combined alters
connection.features.supports_combined_alters = False
# Get settings with defaults
self.LOCK_TIMEOUT = getattr(settings, "ZERO_DOWNTIME_MIGRATIONS_LOCK_TIMEOUT", None)
self.STATEMENT_TIMEOUT = getattr(settings, "ZERO_DOWNTIME_MIGRATIONS_STATEMENT_TIMEOUT", None)
self.FLEXIBLE_STATEMENT_TIMEOUT = getattr(
settings, "ZERO_DOWNTIME_MIGRATIONS_FLEXIBLE_STATEMENT_TIMEOUT", False)
self.RAISE_FOR_UNSAFE = getattr(settings, "ZERO_DOWNTIME_MIGRATIONS_RAISE_FOR_UNSAFE", False)
self.DEFERRED_SQL = getattr(settings, "ZERO_DOWNTIME_MIGRATIONS_DEFERRED_SQL", True)
self.IDEMPOTENT_SQL = (
getattr(settings, "ZERO_DOWNTIME_MIGRATIONS_IDEMPOTENT_SQL", False)
if not collect_sql else
False # disable idempotent mode for sqlmigrate
)
self.KEEP_DEFAULT = getattr(settings, "ZERO_DOWNTIME_MIGRATIONS_KEEP_DEFAULT", False)
if django.VERSION[:2] >= (5, 0) and hasattr(settings, 'ZERO_DOWNTIME_MIGRATIONS_KEEP_DEFAULT'):
warnings.warn(
'settings.ZERO_DOWNTIME_MIGRATIONS_KEEP_DEFAULT is not applicable for django 5.0+. '
'Please remove this setting.',
DeprecationWarning,
)
self.KEEP_DEFAULT = False
self.EXPLICIT_CONSTRAINTS_DROP = getattr(settings, "ZERO_DOWNTIME_MIGRATIONS_EXPLICIT_CONSTRAINTS_DROP", True)
def execute(self, sql, params=()):
if sql is DUMMY_SQL:
return
statements = []
if isinstance(sql, MultiStatementSQL):
statements.extend(sql)
elif isinstance(sql, Statement) and isinstance(sql.template, MultiStatementSQL):
statements.extend(Statement(s, **sql.parts) for s in sql.template)
else:
statements.append(sql)
for statement in statements:
idempotent_condition = None
if isinstance(statement, PGLock):
use_timeouts = statement.use_timeouts
disable_statement_timeout = statement.disable_statement_timeout
idempotent_condition = statement.idempotent_condition
statement = statement.sql
elif isinstance(statement, Statement) and isinstance(statement.template, PGLock):
use_timeouts = statement.template.use_timeouts
disable_statement_timeout = statement.template.disable_statement_timeout
if statement.template.idempotent_condition is not None:
idempotent_condition = statement.template.idempotent_condition % statement.parts
statement = Statement(statement.template.sql, **statement.parts)
else:
use_timeouts = False
disable_statement_timeout = False
if not self._skip_applied(idempotent_condition):
if use_timeouts:
with self._set_operation_timeout(self.STATEMENT_TIMEOUT, self.LOCK_TIMEOUT):
super().execute(statement, params)
elif disable_statement_timeout and self.FLEXIBLE_STATEMENT_TIMEOUT:
with self._set_operation_timeout(self.ZERO_TIMEOUT):
super().execute(statement, params)
else:
super().execute(statement, params)
def _skip_applied(self, idempotent_condition: Condition) -> bool:
if idempotent_condition is None:
return False
if not self.IDEMPOTENT_SQL:
# in case of failure of creating indexes concurrently index will be created but will be invalid
# for this case reindex statement added to recreate valid index in IDEMPOTENT_SQL mode
# but if IDEMPOTENT_SQL mode is disabled we need to skip this extra reindex sql
return idempotent_condition.idempotent_mode_only
with self.connection.cursor() as cursor:
cursor.execute(idempotent_condition.sql)
exists = cursor.fetchone() is not None
if idempotent_condition.exists:
return not exists
return exists
@contextmanager
def _set_operation_timeout(self, statement_timeout=None, lock_timeout=None):
if self.collect_sql:
previous_statement_timeout = self.ZERO_TIMEOUT
previous_lock_timeout = self.ZERO_TIMEOUT
else:
with self.connection.cursor() as cursor:
cursor.execute(self._sql_get_statement_timeout)
previous_statement_timeout, = cursor.fetchone()
cursor.execute(self._sql_get_lock_timeout)
previous_lock_timeout, = cursor.fetchone()
if statement_timeout is not None:
self.execute(self._sql_set_statement_timeout % {"statement_timeout": statement_timeout})
if lock_timeout is not None:
self.execute(self._sql_set_lock_timeout % {"lock_timeout": lock_timeout})
yield
if statement_timeout is not None:
self.execute(self._sql_set_statement_timeout % {"statement_timeout": previous_statement_timeout})
if lock_timeout is not None:
self.execute(self._sql_set_lock_timeout % {"lock_timeout": previous_lock_timeout})
def _flush_deferred_sql(self):
"""As some alternative sql use deferred sql and deferred sql run after all operations in migration module
so good idea to run deferred sql as soon as possible to provide similar as possible state
between operations in migration module. But this approach can be reason of errors for some migrations.
As only constraints creation placed in deferred sql
it looks safe to keep standard django deferred sql run approach.
# TODO: drop option to run deferred sql as soon as possible in future
"""
if not self.DEFERRED_SQL:
for sql in self.deferred_sql:
self.execute(sql)
self.deferred_sql.clear()
def _get_constraints(self, cursor, model):
cursor.execute(self._sql_get_table_constraints_introspection, [model._meta.db_table, model._meta.db_table])
for constraint, kind, table, table_ref, columns, columns_ref in cursor.fetchall():
yield constraint, kind, table, table_ref, columns, columns_ref
def _get_indexes(self, cursor, model):
cursor.execute(self._sql_get_index_introspection, [model._meta.db_table])
for index, table, columns in cursor.fetchall():
yield index, table, columns
def _drop_collect_sql_introspection_related_duplicates(self, drop_constraint_queries):
"""
django internals use introspection to find related constraints and perform action if constraint exists
dropping constraints before dropping table or column can duplicate same logic in django internals
in this case for sqlmigrate drop constraint sql can be duplicated as no physical constraint drop perform
so just remove constraint drop duplicates for sqlmigrate
"""
if self.collect_sql:
handled_queries = set()
drops = set()
for i in range(len(self.collected_sql)):
for j in range(len(drop_constraint_queries)):
if all(
self.collected_sql[i + k] == drop_constraint_queries[j][k]
for k in range(len(drop_constraint_queries[j]))
):
if j in handled_queries:
drops |= {i + k for k in range(len(drop_constraint_queries[j]))}
handled_queries.add(j)
self.collected_sql = [query for i, query in enumerate(self.collected_sql) if i not in drops]
def create_model(self, model):
super().create_model(model)
self._flush_deferred_sql()
def delete_model(self, model):
drop_constraint_queries = []
if self.EXPLICIT_CONSTRAINTS_DROP:
with self.connection.cursor() as cursor:
for constraint, kind, table, table_ref, columns, columns_ref in self._get_constraints(cursor, model):
if kind == "f":
last_collected_sql = len(self.collected_sql) if self.collect_sql else None
self.execute(Statement(
self.sql_delete_fk,
table=Table(table, self.quote_name),
name=self.quote_name(constraint),
))
if self.collect_sql:
drop_constraint_queries.append(self.collected_sql[last_collected_sql:])
super().delete_model(model)
self._flush_deferred_sql()
self._drop_collect_sql_introspection_related_duplicates(drop_constraint_queries)
def alter_index_together(self, model, old_index_together, new_index_together):
super().alter_index_together(model, old_index_together, new_index_together)
self._flush_deferred_sql()
def alter_unique_together(self, model, old_unique_together, new_unique_together):
super().alter_unique_together(model, old_unique_together, new_unique_together)
self._flush_deferred_sql()
def add_index(self, model, index, concurrently=False):
super().add_index(model, index, concurrently=concurrently)
self._flush_deferred_sql()
def remove_index(self, model, index, concurrently=False):
super().remove_index(model, index, concurrently=concurrently)
self._flush_deferred_sql()
def add_constraint(self, model, constraint):
if isinstance(constraint, ExclusionConstraint):
if self.RAISE_FOR_UNSAFE:
raise UnsafeOperationException(Unsafe.ADD_CONSTRAINT_EXCLUDE)
else:
warnings.warn(UnsafeOperationWarning(Unsafe.ADD_CONSTRAINT_EXCLUDE))
super().add_constraint(model, constraint)
self._flush_deferred_sql()
def remove_constraint(self, model, constraint):
super().remove_constraint(model, constraint)
self._flush_deferred_sql()
def add_field(self, model, field):
super().add_field(model, field)
self._flush_deferred_sql()
def remove_field(self, model, field):
drop_constraint_queries = []
if self.EXPLICIT_CONSTRAINTS_DROP:
with self.connection.cursor() as cursor:
# as foreign key can have index as dependent object it important to drop all foreign keys first
for constraint, kind, table, table_ref, columns, columns_ref in self._get_constraints(cursor, model):
# drop foreign key for current model columns
if kind == "f" and table == model._meta.db_table and field.column in columns:
last_collected_sql = len(self.collected_sql) if self.collect_sql else None
self.execute(Statement(
self.sql_delete_fk,
table=Table(table, self.quote_name),
name=self.quote_name(constraint),
))
if self.collect_sql:
drop_constraint_queries.append(self.collected_sql[last_collected_sql:])
# drop foreign key for target model columns, i.e. backrefs
if kind == "f" and table_ref == model._meta.db_table and field.column in columns_ref:
last_collected_sql = len(self.collected_sql) if self.collect_sql else None
self.execute(Statement(
self.sql_delete_fk,
table=Table(table, self.quote_name),
name=self.quote_name(constraint),
))
if self.collect_sql:
drop_constraint_queries.append(self.collected_sql[last_collected_sql:])
for constraint, kind, table, table_ref, columns, columns_ref in self._get_constraints(cursor, model):
# drop unique constraints for current model columns
if kind == "u" and table == model._meta.db_table and field.column in columns:
last_collected_sql = len(self.collected_sql) if self.collect_sql else None
self.execute(Statement(
self.sql_delete_unique,
table=Table(table, self.quote_name),
name=self.quote_name(constraint),
))
if self.collect_sql:
drop_constraint_queries.append(self.collected_sql[last_collected_sql:])
for index, table, columns in self._get_indexes(cursor, model):
# drop indexes for current model columns
if table == model._meta.db_table and field.column in columns:
last_collected_sql = len(self.collected_sql) if self.collect_sql else None
self.execute(Statement(
self.sql_delete_index_concurrently,
table=Table(table, self.quote_name),
name=self.quote_name(index),
))
if self.collect_sql:
drop_constraint_queries.append(self.collected_sql[last_collected_sql:])
super().remove_field(model, field)
self._flush_deferred_sql()
self._drop_collect_sql_introspection_related_duplicates(drop_constraint_queries)
def alter_field(self, model, old_field, new_field, strict=False):
super().alter_field(model, old_field, new_field, strict)
self._flush_deferred_sql()
def alter_db_table(self, model, old_db_table, new_db_table):
# Disregard cases where db_table is unchanged
if old_db_table != new_db_table:
if self.RAISE_FOR_UNSAFE:
raise UnsafeOperationException(Unsafe.ALTER_TABLE_RENAME)
else:
warnings.warn(UnsafeOperationWarning(Unsafe.ALTER_TABLE_RENAME))
super().alter_db_table(model, old_db_table, new_db_table)
self._flush_deferred_sql()
def alter_db_tablespace(self, model, old_db_tablespace, new_db_tablespace):
if self.RAISE_FOR_UNSAFE:
raise UnsafeOperationException(Unsafe.ALTER_TABLE_SET_TABLESPACE)
else:
warnings.warn(UnsafeOperationWarning(Unsafe.ALTER_TABLE_SET_TABLESPACE))
super().alter_db_tablespace(model, old_db_tablespace, new_db_tablespace)
self._flush_deferred_sql()
def alter_db_table_comment(self, model, old_db_table_comment, new_db_table_comment):
super().alter_db_table_comment(model, old_db_table_comment, new_db_table_comment)
self._flush_deferred_sql()
def _rename_field_sql(self, table, old_field, new_field, new_type):
if self.RAISE_FOR_UNSAFE:
raise UnsafeOperationException(Unsafe.ALTER_TABLE_RENAME_COLUMN)
else:
warnings.warn(UnsafeOperationWarning(Unsafe.ALTER_TABLE_RENAME_COLUMN))
return super()._rename_field_sql(table, old_field, new_field, new_type)
def _has_db_default(self, field):
if django.VERSION < (5, 0):
if self.KEEP_DEFAULT:
return field.default is not NOT_PROVIDED
return False
if django.VERSION >= (5, 2):
return field.has_db_default()
return field.db_default is not NOT_PROVIDED
def _add_column_not_null(self, model, field):
if not self._has_db_default(field):
if self.RAISE_FOR_UNSAFE:
raise UnsafeOperationException(Unsafe.ADD_COLUMN_NOT_NULL)
else:
warnings.warn(UnsafeOperationWarning(Unsafe.ADD_COLUMN_NOT_NULL))
return "NOT NULL"
def _add_column_primary_key(self, model, field):
self.deferred_sql.append(self.sql_create_pk % {
"table": self.quote_name(model._meta.db_table),
"name": self.quote_name(self._create_index_name(model._meta.db_table, [field.column], suffix="_pk")),
"columns": self.quote_name(field.column),
})
return ""
def _add_column_unique(self, model, field):
self.deferred_sql.append(self._create_unique_sql(model, [field]))
return ""
def _patched_iter_column_sql(
self, column_db_type, params, model, field, field_db_params, include_default
):
yield column_db_type
if collation := field_db_params.get("collation"):
yield self._collate_sql(collation)
if self.connection.features.supports_comments_inline and field.db_comment:
yield self._comment_sql(field.db_comment)
# Work out nullability.
null = field.null
# Add database default.
if (
django.VERSION >= (5, 2) and field.has_db_default()
or django.VERSION >= (5, 0) and field.db_default is not NOT_PROVIDED
):
default_sql, default_params = self.db_default_sql(field)
yield f"DEFAULT {default_sql}"
params.extend(default_params)
include_default = False
# Include a default value, if requested.
include_default = (
include_default
and not self.skip_default(field)
and
# Don't include a default value if it's a nullable field and the
# default cannot be dropped in the ALTER COLUMN statement (e.g.
# MySQL longtext and longblob).
not (null and self.skip_default_on_alter(field))
)
if include_default:
default_value = self.effective_default(field)
if default_value is not None:
column_default = "DEFAULT " + self._column_default_sql(field)
if self.connection.features.requires_literal_defaults:
# Some databases can't take defaults as a parameter
# (Oracle, SQLite). If this is the case, the individual
# schema backend should implement prepare_default().
yield column_default % self.prepare_default(default_value)
else:
yield column_default
params.append(default_value)
# Oracle treats the empty string ('') as null, so coerce the null
# option whenever '' is a possible value.
if (
field.empty_strings_allowed
and not field.primary_key
and self.connection.features.interprets_empty_strings_as_nulls
):
null = True
if django.VERSION >= (5, 0) and field.generated:
generated_sql, generated_params = self._column_generated_sql(field)
params.extend(generated_params)
yield generated_sql
elif not null:
yield self._add_column_not_null(model, field) # different to origin method
elif not self.connection.features.implied_column_null:
yield "NULL"
if field.primary_key:
self._add_column_primary_key(model, field) # different to origin method
elif field.unique:
self._add_column_unique(model, field) # different to origin method
# Optionally add the tablespace if it's an implicitly indexed column.
tablespace = field.db_tablespace or model._meta.db_tablespace
if (
tablespace
and self.connection.features.supports_tablespaces
and field.unique
):
yield self.connection.ops.tablespace_sql(tablespace, inline=True)
def _iter_column_sql(
self, column_db_type, params, model, field, field_db_params, include_default
):
if not include_default:
yield from super()._iter_column_sql(
column_db_type,
params,
model,
field,
field_db_params,
include_default,
)
else:
yield from self._patched_iter_column_sql(
column_db_type,
params,
model,
field,
field_db_params,
include_default,
)
def _alter_column_set_not_null(self, model, new_field):
self.deferred_sql.append(self._sql_column_not_null % {
"column": self.quote_name(new_field.column),
"table": self.quote_name(model._meta.db_table),
"name": self.quote_name(
self._create_index_name(model._meta.db_table, [new_field.column], suffix="_notnull")
),
})
return DUMMY_SQL, []
def _alter_column_drop_not_null(self, model, new_field):
return self.sql_alter_column_null % {
"column": self.quote_name(new_field.column),
}, []
def _alter_column_null_sql(self, model, old_field, new_field):
if new_field.null:
return self._alter_column_drop_not_null(model, new_field)
else:
return self._alter_column_set_not_null(model, new_field)
def _immediate_type_cast(self, old_type, new_type):
if (
(old_type == new_type) or
(old_type == 'integer' and new_type == 'serial') or
(old_type == 'bigint' and new_type == 'bigserial') or
(old_type == 'smallint' and new_type == 'smallserial') or
(old_type == 'serial' and new_type == 'integer') or
(old_type == 'bigserial' and new_type == 'bigint') or
(old_type == 'smallserial' and new_type == 'smallint')
):
return True
old_type_varchar_match = self._varchar_type_regexp.match(old_type)
if old_type_varchar_match:
if new_type == "text":
return True
new_type_varchar_match = self._varchar_type_regexp.match(new_type)
if new_type_varchar_match:
old_type_max_length = int(old_type_varchar_match.group("max_length"))
new_type_max_length = int(new_type_varchar_match.group("max_length"))
if new_type_max_length >= old_type_max_length:
return True
else:
return False
old_type_numeric_match = self._numeric_type_regexp.match(old_type)
if old_type_numeric_match:
new_type_numeric_match = self._numeric_type_regexp.match(new_type)
old_type_precision = int(old_type_numeric_match.group("precision"))
old_type_scale = int(old_type_numeric_match.group("scale"))
try:
new_type_precision = int(new_type_numeric_match.group("precision"))
new_type_scale = int(new_type_numeric_match.group("scale"))
except AttributeError:
return False
return new_type_precision >= old_type_precision and new_type_scale == old_type_scale
return False
def _alter_column_type_sql(self, model, old_field, new_field, new_type, old_collation, new_collation):
old_db_params = old_field.db_parameters(connection=self.connection)
old_type = old_db_params["type"]
if not self._immediate_type_cast(old_type, new_type):
if self.RAISE_FOR_UNSAFE:
raise UnsafeOperationException(Unsafe.ALTER_COLUMN_TYPE)
else:
warnings.warn(UnsafeOperationWarning(Unsafe.ALTER_COLUMN_TYPE))
return super()._alter_column_type_sql(model, old_field, new_field, new_type, old_collation, new_collation)
class DatabaseSchemaEditor(DatabaseSchemaEditorMixin, PostgresDatabaseSchemaEditor):
pass
================================================
FILE: docker-compose.yml
================================================
services:
pg17:
image: postgres:17-alpine
environment:
POSTGRES_USER: root
POSTGRES_PASSWORD: root
volumes:
- ./docker_postgres_init.sql:/docker-entrypoint-initdb.d/docker_postgres_init.sql
pg16:
image: postgres:16-alpine
environment:
POSTGRES_USER: root
POSTGRES_PASSWORD: root
volumes:
- ./docker_postgres_init.sql:/docker-entrypoint-initdb.d/docker_postgres_init.sql
pg15:
image: postgres:15-alpine
environment:
POSTGRES_USER: root
POSTGRES_PASSWORD: root
volumes:
- ./docker_postgres_init.sql:/docker-entrypoint-initdb.d/docker_postgres_init.sql
pg14:
image: postgres:14-alpine
environment:
POSTGRES_USER: root
POSTGRES_PASSWORD: root
volumes:
- ./docker_postgres_init.sql:/docker-entrypoint-initdb.d/docker_postgres_init.sql
pg13:
image: postgres:13-alpine
environment:
POSTGRES_USER: root
POSTGRES_PASSWORD: root
volumes:
- ./docker_postgres_init.sql:/docker-entrypoint-initdb.d/docker_postgres_init.sql
pg12:
image: postgres:12-alpine
environment:
POSTGRES_USER: root
POSTGRES_PASSWORD: root
volumes:
- ./docker_postgres_init.sql:/docker-entrypoint-initdb.d/docker_postgres_init.sql
pg11:
image: postgres:11-alpine
environment:
POSTGRES_USER: root
POSTGRES_PASSWORD: root
volumes:
- ./docker_postgres_init.sql:/docker-entrypoint-initdb.d/docker_postgres_init.sql
postgis17:
image: postgis/postgis:17-3.5-alpine
environment:
POSTGRES_USER: root
POSTGRES_PASSWORD: root
volumes:
- ./docker_postgres_init.sql:/docker-entrypoint-initdb.d/docker_postgres_init.sql
django-pg-zero-downtime-migrations-tests:
image: django-pg-zero-downtime-migrations:latest
build: .
depends_on:
- pg17
- pg16
- pg15
- pg14
- pg13
- pg12
- pg11
- postgis17
volumes:
- .:/app
================================================
FILE: docker_postgres_init.sql
================================================
CREATE USER test WITH PASSWORD 'test' CREATEDB;
================================================
FILE: manage.py
================================================
#!/usr/bin/env python
"""Django's command-line utility for administrative tasks."""
import os
import sys
def main():
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'tests.settings_make_migrations')
try:
from django.core.management import execute_from_command_line
except ImportError as exc:
raise ImportError(
"Couldn't import Django. Are you sure it's installed and "
"available on your PYTHONPATH environment variable? Did you "
"forget to activate a virtual environment?"
) from exc
execute_from_command_line(sys.argv)
if __name__ == '__main__':
main()
================================================
FILE: setup.cfg
================================================
[flake8]
max-line-length = 120
exclude = .tox/,venv/
[isort]
combine_as_imports = true
known_django = django
known_first_party = django_zero_downtime_migrations,tests
sections = FUTURE,STDLIB,DJANGO,THIRDPARTY,FIRSTPARTY,LOCALFOLDER
default_section = THIRDPARTY
line_length = 79
multi_line_output = 5
skip = .tox/,venv/
[tool:pytest]
addopts = --verbose
python_files = tests/*/test*.py
DJANGO_SETTINGS_MODULE = tests.settings
================================================
FILE: setup.py
================================================
from setuptools import find_packages, setup
VERSION = __import__('django_zero_downtime_migrations').__version__
def _replace_internal_images_with_external(text):
return text.replace(
'(images/',
'(https://raw.githubusercontent.com/tbicr/django-pg-zero-downtime-migrations/'
'{VERSION}/images/'.format(VERSION=VERSION),
)
def _get_long_description():
with open('README.md') as readme_handle:
readme = readme_handle.read()
with open('CHANGES.md') as changes_handle:
changes = changes_handle.read()
return _replace_internal_images_with_external(readme) + '\n\n' + changes
setup(
name='django-pg-zero-downtime-migrations',
version=VERSION,
author='Paveł Tyślacki',
author_email='pavel.tyslacki@gmail.com',
license='MIT',
url='https://github.com/tbicr/django-pg-zero-downtime-migrations',
description='Django postgresql backend that apply migrations with respect to database locks',
long_description=_get_long_description(),
long_description_content_type='text/markdown',
classifiers=[
'Development Status :: 4 - Beta',
'Intended Audience :: Developers',
'License :: OSI Approved :: MIT License',
'Operating System :: OS Independent',
'Programming Language :: Python',
'Programming Language :: Python :: 3.8',
'Programming Language :: Python :: 3.9',
'Programming Language :: Python :: 3.10',
'Programming Language :: Python :: 3.11',
'Programming Language :: Python :: 3.12',
'Programming Language :: Python :: 3.13',
'Framework :: Django',
'Framework :: Django :: 4.2',
'Framework :: Django :: 5.0',
'Framework :: Django :: 5.1',
'Framework :: Django :: 5.2',
],
keywords='django postgres postgresql migrations',
packages=find_packages(exclude=['manage*', 'tests*']),
python_requires='>=3.8',
install_requires=[
'django>=4.2',
]
)
================================================
FILE: tests/__init__.py
================================================
from django.conf import settings
import pytest
skip_for_default_django_backend = pytest.mark.skipif(
settings.DATABASES['default']['ENGINE'] in (
'django.db.backends.postgresql',
'django.contrib.gis.db.backends.postgis',
),
reason='not actual for default django backends'
)
================================================
FILE: tests/apps/__init__.py
================================================
================================================
FILE: tests/apps/bad_flow_add_column_with_default_app/__init__.py
================================================
================================================
FILE: tests/apps/bad_flow_add_column_with_default_app/migrations/0001_initial.py
================================================
# Generated by Django 3.1 on 2019-09-22 21:47
from django.db import migrations, models
class Migration(migrations.Migration):
initial = True
dependencies = [
]
operations = [
migrations.CreateModel(
name='TestTable',
fields=[
('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
],
),
]
================================================
FILE: tests/apps/bad_flow_add_column_with_default_app/migrations/0002_add_field_default.py
================================================
# Generated by Django 3.1 on 2019-09-22 21:47
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('bad_flow_add_column_with_default_app', '0001_initial'),
]
operations = [
migrations.AddField(
model_name='testtable',
name='field',
field=models.IntegerField(default=0),
),
]
================================================
FILE: tests/apps/bad_flow_add_column_with_default_app/migrations/__init__.py
================================================
================================================
FILE: tests/apps/bad_flow_add_column_with_default_app/models.py
================================================
from django.db import models
class TestTable(models.Model):
field = models.IntegerField(default=0, null=False)
================================================
FILE: tests/apps/bad_flow_add_column_with_notnull_app/__init__.py
================================================
================================================
FILE: tests/apps/bad_flow_add_column_with_notnull_app/migrations/0001_initial.py
================================================
# Generated by Django 3.1 on 2019-09-22 21:45
from django.db import migrations, models
class Migration(migrations.Migration):
initial = True
dependencies = [
]
operations = [
migrations.CreateModel(
name='TestTable',
fields=[
('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
],
),
]
================================================
FILE: tests/apps/bad_flow_add_column_with_notnull_app/migrations/0002_add_field_notnull.py
================================================
# Generated by Django 3.1 on 2019-09-22 21:46
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('bad_flow_add_column_with_notnull_app', '0001_initial'),
]
operations = [
migrations.AddField(
model_name='testtable',
name='field',
field=models.IntegerField(),
),
]
================================================
FILE: tests/apps/bad_flow_add_column_with_notnull_app/migrations/__init__.py
================================================
================================================
FILE: tests/apps/bad_flow_add_column_with_notnull_app/models.py
================================================
from django.db import models
class TestTable(models.Model):
field = models.IntegerField()
================================================
FILE: tests/apps/bad_flow_add_column_with_notnull_default_app/__init__.py
================================================
================================================
FILE: tests/apps/bad_flow_add_column_with_notnull_default_app/migrations/0001_initial.py
================================================
# Generated by Django 3.1 on 2019-09-22 21:41
from django.db import migrations, models
class Migration(migrations.Migration):
initial = True
dependencies = [
]
operations = [
migrations.CreateModel(
name='TestTable',
fields=[
('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
],
),
]
================================================
FILE: tests/apps/bad_flow_add_column_with_notnull_default_app/migrations/0002_add_field_notnull_default.py
================================================
# Generated by Django 3.1 on 2019-09-22 21:43
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('bad_flow_add_column_with_notnull_default_app', '0001_initial'),
]
operations = [
migrations.AddField(
model_name='testtable',
name='field',
field=models.IntegerField(default=0),
),
]
================================================
FILE: tests/apps/bad_flow_add_column_with_notnull_default_app/migrations/__init__.py
================================================
================================================
FILE: tests/apps/bad_flow_add_column_with_notnull_default_app/models.py
================================================
from django.db import models
class TestTable(models.Model):
field = models.IntegerField(default=0)
================================================
FILE: tests/apps/bad_flow_change_char_type_that_unsafe_app/__init__.py
================================================
================================================
FILE: tests/apps/bad_flow_change_char_type_that_unsafe_app/migrations/0001_initial.py
================================================
# Generated by Django 3.1 on 2019-09-22 21:37
from django.db import migrations, models
class Migration(migrations.Migration):
initial = True
dependencies = [
]
operations = [
migrations.CreateModel(
name='TestTable',
fields=[
('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
('field', models.CharField(max_length=120)),
],
),
]
================================================
FILE: tests/apps/bad_flow_change_char_type_that_unsafe_app/migrations/0002_change_type_from_char120_to_char100.py
================================================
# Generated by Django 3.1 on 2019-09-22 21:38
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('bad_flow_change_char_type_that_unsafe_app', '0001_initial'),
]
operations = [
migrations.AlterField(
model_name='testtable',
name='field',
field=models.CharField(max_length=100),
),
]
================================================
FILE: tests/apps/bad_flow_change_char_type_that_unsafe_app/migrations/__init__.py
================================================
================================================
FILE: tests/apps/bad_flow_change_char_type_that_unsafe_app/models.py
================================================
from django.db import models
class TestTable(models.Model):
field = models.CharField(max_length=100)
================================================
FILE: tests/apps/bad_rollback_flow_change_char_type_that_safe_app/__init__.py
================================================
================================================
FILE: tests/apps/bad_rollback_flow_change_char_type_that_safe_app/migrations/0001_initial.py
================================================
# Generated by Django 3.1 on 2019-09-22 21:26
from django.db import migrations, models
class Migration(migrations.Migration):
initial = True
dependencies = [
]
operations = [
migrations.CreateModel(
name='TestTable',
fields=[
('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
('char_filed', models.CharField(max_length=100)),
],
),
]
================================================
FILE: tests/apps/bad_rollback_flow_change_char_type_that_safe_app/migrations/0002_change_type_safe_from_char100_to_char120.py
================================================
# Generated by Django 3.1 on 2019-09-22 21:27
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('bad_rollback_flow_change_char_type_that_safe_app', '0001_initial'),
]
operations = [
migrations.AlterField(
model_name='testtable',
name='char_filed',
field=models.CharField(max_length=120),
),
]
================================================
FILE: tests/apps/bad_rollback_flow_change_char_type_that_safe_app/migrations/__init__.py
================================================
================================================
FILE: tests/apps/bad_rollback_flow_change_char_type_that_safe_app/models.py
================================================
from django.db import models
class TestTable(models.Model):
char_filed = models.CharField(max_length=120)
================================================
FILE: tests/apps/bad_rollback_flow_drop_column_with_notnull_app/__init__.py
================================================
================================================
FILE: tests/apps/bad_rollback_flow_drop_column_with_notnull_app/migrations/0001_initial.py
================================================
# Generated by Django 3.1 on 2019-09-22 21:00
from django.db import migrations, models
def insert_objects(apps, schema_editor):
db_alias = schema_editor.connection.alias
TestTable = apps.get_model('bad_rollback_flow_drop_column_with_notnull_app', 'TestTable')
TestTable.objects.using(db_alias).create(field=1)
class Migration(migrations.Migration):
initial = True
dependencies = [
]
operations = [
migrations.CreateModel(
name='TestTable',
fields=[
('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
('field', models.IntegerField()),
],
),
migrations.RunPython(insert_objects, migrations.RunPython.noop),
]
================================================
FILE: tests/apps/bad_rollback_flow_drop_column_with_notnull_app/migrations/0002_drop_field_not_null.py
================================================
# Generated by Django 3.1 on 2019-09-22 21:02
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('bad_rollback_flow_drop_column_with_notnull_app', '0001_initial'),
]
operations = [
migrations.RemoveField(
model_name='testtable',
name='field',
),
]
================================================
FILE: tests/apps/bad_rollback_flow_drop_column_with_notnull_app/migrations/__init__.py
================================================
================================================
FILE: tests/apps/bad_rollback_flow_drop_column_with_notnull_app/models.py
================================================
from django.db import models
class TestTable(models.Model):
pass
================================================
FILE: tests/apps/bad_rollback_flow_drop_column_with_notnull_default_app/__init__.py
================================================
================================================
FILE: tests/apps/bad_rollback_flow_drop_column_with_notnull_default_app/migrations/0001_initial.py
================================================
# Generated by Django 3.1 on 2019-09-22 21:19
from django.db import migrations, models
def insert_objects(apps, schema_editor):
db_alias = schema_editor.connection.alias
TestTable = apps.get_model('bad_rollback_flow_drop_column_with_notnull_default_app', 'TestTable')
TestTable.objects.using(db_alias).create(field=1)
class Migration(migrations.Migration):
initial = True
dependencies = [
]
operations = [
migrations.CreateModel(
name='TestTable',
fields=[
('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
('field', models.IntegerField(default=0)),
],
),
migrations.RunPython(insert_objects, migrations.RunPython.noop),
]
================================================
FILE: tests/apps/bad_rollback_flow_drop_column_with_notnull_default_app/migrations/0002_drop_field_not_null_default.py
================================================
# Generated by Django 3.1 on 2019-09-22 21:20
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('bad_rollback_flow_drop_column_with_notnull_default_app', '0001_initial'),
]
operations = [
migrations.RemoveField(
model_name='testtable',
name='field',
),
]
================================================
FILE: tests/apps/bad_rollback_flow_drop_column_with_notnull_default_app/migrations/__init__.py
================================================
================================================
FILE: tests/apps/bad_rollback_flow_drop_column_with_notnull_default_app/models.py
================================================
from django.db import models
class TestTable(models.Model):
pass
================================================
FILE: tests/apps/decimal_to_float_app/__init__.py
================================================
================================================
FILE: tests/apps/decimal_to_float_app/migrations/0001_initial.py
================================================
from django.db import migrations, models
class Migration(migrations.Migration):
initial = True
dependencies = [
]
operations = [
migrations.CreateModel(
name='Value',
fields=[
('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
('amount', models.DecimalField(blank=True, decimal_places=4, default=None, max_digits=12, null=True)),
],
options={
'abstract': False,
},
),
]
================================================
FILE: tests/apps/decimal_to_float_app/migrations/0002_type_conversion.py
================================================
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('decimal_to_float_app', '0001_initial'),
]
operations = [
migrations.AlterField(
model_name='value',
name='amount',
field=models.FloatField(blank=True, default=None, null=True),
),
]
================================================
FILE: tests/apps/decimal_to_float_app/migrations/__init__.py
================================================
================================================
FILE: tests/apps/decimal_to_float_app/models.py
================================================
from django.db import models
class Value(models.Model):
amount = models.FloatField(
null=True,
default=None,
blank=True,
)
================================================
FILE: tests/apps/good_flow_alter_table_with_same_db_table/__init__.py
================================================
================================================
FILE: tests/apps/good_flow_alter_table_with_same_db_table/migrations/0001_initial.py
================================================
# Generated by Django 3.1 on 2021-12-30 13:37
from django.db import migrations, models
class Migration(migrations.Migration):
initial = True
dependencies = [
]
operations = [
migrations.CreateModel(
name='TestTable',
fields=[
('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
('field', models.IntegerField()),
],
options={
'db_table': 'test_table',
},
),
]
================================================
FILE: tests/apps/good_flow_alter_table_with_same_db_table/migrations/0002_rename_model.py
================================================
# Generated by Django 3.1 on 2021-12-30 23:59
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_alter_table_with_same_db_table', '0001_initial'),
]
operations = [
migrations.RenameModel(
old_name='TestTable',
new_name='TestTableRenamed',
),
]
================================================
FILE: tests/apps/good_flow_alter_table_with_same_db_table/migrations/__init__.py
================================================
================================================
FILE: tests/apps/good_flow_alter_table_with_same_db_table/models.py
================================================
from django.db import models
class TestTableRenamed(models.Model):
class Meta:
db_table = 'test_table'
================================================
FILE: tests/apps/good_flow_app/__init__.py
================================================
================================================
FILE: tests/apps/good_flow_app/migrations/0001_initial.py
================================================
# Generated by Django 3.1 on 2019-09-21 20:09
import django.contrib.postgres.search
from django.db import migrations, models
def insert_objects(apps, schema_editor):
db_alias = schema_editor.connection.alias
TestTable = apps.get_model('good_flow_app', 'TestTable')
TestTable.objects.using(db_alias).create(test_field_int=1)
class Migration(migrations.Migration):
initial = True
dependencies = [
]
operations = [
migrations.CreateModel(
name='RelatedTestTable',
fields=[
('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
],
),
migrations.CreateModel(
name='TestTable',
fields=[
('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
('test_field_int', models.IntegerField()),
('test_field_str', models.CharField(max_length=10)),
('test_field_tsv', django.contrib.postgres.search.SearchVectorField()),
],
),
migrations.RunPython(insert_objects, migrations.RunPython.noop),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0002_add_nullable_field.py
================================================
# Generated by Django 3.1 on 2019-09-21 20:15
from django.db import migrations, models
def insert_objects_and_null_check(apps, schema_editor):
db_alias = schema_editor.connection.alias
TestTable = apps.get_model('good_flow_app', 'TestTable')
instance = TestTable.objects.using(db_alias).create(test_field_int=1)
assert instance.field is None
instance.delete()
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0001_initial'),
]
operations = [
migrations.AddField(
model_name='testtable',
name='field',
field=models.IntegerField(null=True),
),
migrations.RunPython(insert_objects_and_null_check, migrations.RunPython.noop),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0003_set_field_default.py
================================================
# Generated by Django 3.1 on 2019-09-21 20:16
from django.db import migrations, models
def insert_objects_and_default_check(apps, schema_editor):
db_alias = schema_editor.connection.alias
TestTable = apps.get_model('good_flow_app', 'TestTable')
instance = TestTable.objects.using(db_alias).create(test_field_int=1)
assert instance.field == 0
instance.delete()
instance = TestTable.objects.using(db_alias).create(test_field_int=1, field=None)
assert instance.field is None
instance.delete()
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0002_add_nullable_field'),
]
operations = [
migrations.AlterField(
model_name='testtable',
name='field',
field=models.IntegerField(default=0, null=True),
),
migrations.RunPython(insert_objects_and_default_check, migrations.RunPython.noop),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0004_set_field_not_null.py
================================================
# Generated by Django 3.1 on 2019-09-21 20:16
from django.db import IntegrityError, migrations, models
def flush_deferred_sql(apps, schema_editor):
for sql in schema_editor.deferred_sql:
schema_editor.execute(sql)
def update_objects(apps, schema_editor):
db_alias = schema_editor.connection.alias
TestTable = apps.get_model('good_flow_app', 'TestTable')
TestTable.objects.using(db_alias).update(field=0)
def insert_objects_and_not_null_check(apps, schema_editor):
db_alias = schema_editor.connection.alias
TestTable = apps.get_model('good_flow_app', 'TestTable')
instance = TestTable.objects.using(db_alias).create(test_field_int=1)
assert instance.field == 0
instance.delete()
try:
TestTable.objects.using(db_alias).create(test_field_int=1, field=None)
assert False
except IntegrityError:
pass
class Migration(migrations.Migration):
atomic = False # avoid transaction issue for default django backend check
dependencies = [
('good_flow_app', '0003_set_field_default'),
]
operations = [
migrations.RunPython(update_objects, migrations.RunPython.noop),
migrations.AlterField(
model_name='testtable',
name='field',
field=models.IntegerField(default=0),
),
migrations.RunPython(flush_deferred_sql, migrations.RunPython.noop),
migrations.RunPython(insert_objects_and_not_null_check, migrations.RunPython.noop),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0005_drop_field_not_null.py
================================================
# Generated by Django 3.1 on 2019-09-21 20:17
from django.db import migrations, models
def insert_objects_and_default_check(apps, schema_editor):
db_alias = schema_editor.connection.alias
TestTable = apps.get_model('good_flow_app', 'TestTable')
instance = TestTable.objects.using(db_alias).create(test_field_int=1)
assert instance.field == 0
instance.delete()
instance = TestTable.objects.using(db_alias).create(test_field_int=1, field=None)
assert instance.field is None
instance.delete()
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0004_set_field_not_null'),
]
operations = [
migrations.AlterField(
model_name='testtable',
name='field',
field=models.IntegerField(default=0, null=True),
),
migrations.RunPython(insert_objects_and_default_check, migrations.RunPython.noop),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0006_drop_field_default.py
================================================
# Generated by Django 3.1 on 2019-09-21 20:17
from django.db import migrations, models
def insert_objects_and_null_check(apps, schema_editor):
db_alias = schema_editor.connection.alias
TestTable = apps.get_model('good_flow_app', 'TestTable')
instance = TestTable.objects.using(db_alias).create(test_field_int=1)
assert instance.field is None
instance.delete()
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0005_drop_field_not_null'),
]
operations = [
migrations.AlterField(
model_name='testtable',
name='field',
field=models.IntegerField(null=True),
),
migrations.RunPython(insert_objects_and_null_check, migrations.RunPython.noop),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0007_drop_field.py
================================================
# Generated by Django 3.1 on 2019-09-21 20:18
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0006_drop_field_default'),
]
operations = [
migrations.RemoveField(
model_name='testtable',
name='field',
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0008_add_field_with_check_constraint.py
================================================
# Generated by Django 3.1 on 2019-09-22 20:39
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0007_drop_field'),
]
operations = [
migrations.AddField(
model_name='testtable',
name='field',
field=models.PositiveIntegerField(null=True),
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0009_drop_field_with_check_constraint.py
================================================
# Generated by Django 3.1 on 2019-09-22 20:39
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0008_add_field_with_check_constraint'),
]
operations = [
migrations.RemoveField(
model_name='testtable',
name='field',
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0010_add_field_with_foreign_key.py
================================================
# Generated by Django 3.1 on 2019-09-22 20:42
import django.db.models.deletion
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0009_drop_field_with_check_constraint'),
]
operations = [
migrations.AddField(
model_name='testtable',
name='field',
field=models.ForeignKey(
null=True, on_delete=django.db.models.deletion.CASCADE, to='good_flow_app.RelatedTestTable'
),
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0011_drop_field_with_foreign_key.py
================================================
# Generated by Django 3.1 on 2019-09-22 20:42
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0010_add_field_with_foreign_key'),
]
operations = [
migrations.RemoveField(
model_name='testtable',
name='field',
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0012_add_field_with_unique_constraint.py
================================================
# Generated by Django 3.1 on 2019-09-22 20:43
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0011_drop_field_with_foreign_key'),
]
operations = [
migrations.AddField(
model_name='testtable',
name='field',
field=models.IntegerField(null=True, unique=True),
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0013_drop_field_with_unique_constraint.py
================================================
# Generated by Django 3.1 on 2019-09-22 20:43
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0012_add_field_with_unique_constraint'),
]
operations = [
migrations.RemoveField(
model_name='testtable',
name='field',
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0014_add_field_with_index.py
================================================
# Generated by Django 3.1 on 2019-09-22 20:44
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0013_drop_field_with_unique_constraint'),
]
operations = [
migrations.AddField(
model_name='testtable',
name='field',
field=models.IntegerField(db_index=True, null=True),
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0015_drop_field_with_index.py
================================================
# Generated by Django 3.1 on 2019-09-22 20:44
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0014_add_field_with_index'),
]
operations = [
migrations.RemoveField(
model_name='testtable',
name='field',
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0016_add_check_constraint.py
================================================
# Generated by Django 3.1 on 2019-09-22 20:49
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0015_drop_field_with_index'),
]
operations = [
migrations.AddConstraint(
model_name='testtable',
constraint=models.CheckConstraint(check=models.Q(test_field_int__gt=0), name='test_check_constraint'),
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0017_drop_check_constraint.py
================================================
# Generated by Django 3.1 on 2019-09-22 20:49
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0016_add_check_constraint'),
]
operations = [
migrations.RemoveConstraint(
model_name='testtable',
name='test_check_constraint',
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0018_add_unique_constraint.py
================================================
# Generated by Django 3.1 on 2019-09-22 20:51
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0017_drop_check_constraint'),
]
operations = [
migrations.AddConstraint(
model_name='testtable',
constraint=models.UniqueConstraint(fields=('test_field_int',), name='test_uniq_constraint'),
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0019_drop_unique_constraint.py
================================================
# Generated by Django 3.1 on 2019-09-22 20:51
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0018_add_unique_constraint'),
]
operations = [
migrations.RemoveConstraint(
model_name='testtable',
name='test_uniq_constraint',
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0020_add_unique_constraint_with_condition.py
================================================
# Generated by Django 3.1 on 2019-09-22 20:52
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0019_drop_unique_constraint'),
]
operations = [
migrations.AddConstraint(
model_name='testtable',
constraint=models.UniqueConstraint(
condition=models.Q(test_field_int__isnull=False),
fields=('test_field_int',),
name='test_uniq_constraint',
),
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0021_drop_unique_constraint_with_condition.py
================================================
# Generated by Django 3.1 on 2019-09-22 20:52
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0020_add_unique_constraint_with_condition'),
]
operations = [
migrations.RemoveConstraint(
model_name='testtable',
name='test_uniq_constraint',
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0022_add_index.py
================================================
# Generated by Django 3.1 on 2019-09-22 20:53
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0021_drop_unique_constraint_with_condition'),
]
operations = [
migrations.AddIndex(
model_name='testtable',
index=models.Index(fields=['test_field_int'], name='test_index'),
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0023_drop_index.py
================================================
# Generated by Django 3.1 on 2019-09-22 20:53
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0022_add_index'),
]
operations = [
migrations.RemoveIndex(
model_name='testtable',
name='test_index',
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0024_add_index_with_condition.py
================================================
# Generated by Django 3.1 on 2019-09-22 20:53
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0023_drop_index'),
]
operations = [
migrations.AddIndex(
model_name='testtable',
index=models.Index(
condition=models.Q(test_field_int__isnull=False),
fields=['test_field_int'],
name='test_index',
),
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0025_drop_index_with_condition.py
================================================
# Generated by Django 3.1 on 2019-09-22 20:54
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0024_add_index_with_condition'),
]
operations = [
migrations.RemoveIndex(
model_name='testtable',
name='test_index',
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0026_add_brin_index.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:38
import django.contrib.postgres.indexes
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0025_drop_index_with_condition'),
]
operations = [
migrations.AddIndex(
model_name='testtable',
index=django.contrib.postgres.indexes.BrinIndex(fields=['test_field_int'], name='test_index'),
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0027_drop_brin_index.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:38
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0026_add_brin_index'),
]
operations = [
migrations.RemoveIndex(
model_name='testtable',
name='test_index',
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0028_add_brin_index_with_condition.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:39
import django.contrib.postgres.indexes
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0027_drop_brin_index'),
]
operations = [
migrations.AddIndex(
model_name='testtable',
index=django.contrib.postgres.indexes.BrinIndex(
condition=models.Q(test_field_int__isnull=False),
fields=['test_field_int'],
name='test_index',
),
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0029_drop_brin_index_with_condition.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:39
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0028_add_brin_index_with_condition'),
]
operations = [
migrations.RemoveIndex(
model_name='testtable',
name='test_index',
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0030_add_btree_index.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:45
import django.contrib.postgres.indexes
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0029_drop_brin_index_with_condition'),
]
operations = [
migrations.AddIndex(
model_name='testtable',
index=django.contrib.postgres.indexes.BTreeIndex(fields=['test_field_int'], name='test_index'),
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0031_drop_btree_index.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:46
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0030_add_btree_index'),
]
operations = [
migrations.RemoveIndex(
model_name='testtable',
name='test_index',
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0032_add_btree_index_with_condition.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:46
import django.contrib.postgres.indexes
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0031_drop_btree_index'),
]
operations = [
migrations.AddIndex(
model_name='testtable',
index=django.contrib.postgres.indexes.BTreeIndex(
condition=models.Q(test_field_int__isnull=False),
fields=['test_field_int'],
name='test_index',
),
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0033_drop_btree_index_with_condition.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:46
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0032_add_btree_index_with_condition'),
]
operations = [
migrations.RemoveIndex(
model_name='testtable',
name='test_index',
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0034_add_gin_index.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:46
import django.contrib.postgres.indexes
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0033_drop_btree_index_with_condition'),
]
operations = [
migrations.AddIndex(
model_name='testtable',
index=django.contrib.postgres.indexes.GinIndex(fields=['test_field_tsv'], name='test_index'),
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0035_drop_gin_index.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:47
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0034_add_gin_index'),
]
operations = [
migrations.RemoveIndex(
model_name='testtable',
name='test_index',
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0036_add_gin_index_with_condition.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:47
import django.contrib.postgres.indexes
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0035_drop_gin_index'),
]
operations = [
migrations.AddIndex(
model_name='testtable',
index=django.contrib.postgres.indexes.GinIndex(
condition=models.Q(test_field_tsv__isnull=False),
fields=['test_field_tsv'],
name='test_index',
),
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0037_drop_gin_index_with_condition.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:47
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0036_add_gin_index_with_condition'),
]
operations = [
migrations.RemoveIndex(
model_name='testtable',
name='test_index',
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0038_add_gist_index.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:47
import django.contrib.postgres.indexes
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0037_drop_gin_index_with_condition'),
]
operations = [
migrations.AddIndex(
model_name='testtable',
index=django.contrib.postgres.indexes.GistIndex(fields=['test_field_tsv'], name='test_index'),
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0039_drop_gist_index.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:47
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0038_add_gist_index'),
]
operations = [
migrations.RemoveIndex(
model_name='testtable',
name='test_index',
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0040_add_gist_index_with_condition.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:47
import django.contrib.postgres.indexes
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0039_drop_gist_index'),
]
operations = [
migrations.AddIndex(
model_name='testtable',
index=django.contrib.postgres.indexes.GistIndex(
condition=models.Q(test_field_tsv__isnull=False),
fields=['test_field_tsv'],
name='test_index',
),
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0041_drop_gist_index_with_condition.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:48
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0040_add_gist_index_with_condition'),
]
operations = [
migrations.RemoveIndex(
model_name='testtable',
name='test_index',
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0042_add_hash_index.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:48
import django.contrib.postgres.indexes
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0041_drop_gist_index_with_condition'),
]
operations = [
migrations.AddIndex(
model_name='testtable',
index=django.contrib.postgres.indexes.HashIndex(fields=['test_field_int'], name='test_index'),
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0043_drop_hash_index.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:48
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0042_add_hash_index'),
]
operations = [
migrations.RemoveIndex(
model_name='testtable',
name='test_index',
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0044_add_hash_index_with_condition.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:48
import django.contrib.postgres.indexes
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0043_drop_hash_index'),
]
operations = [
migrations.AddIndex(
model_name='testtable',
index=django.contrib.postgres.indexes.HashIndex(
condition=models.Q(test_field_int__isnull=False),
fields=['test_field_int'],
name='test_index',
),
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0045_drop_hash_index_with_condition.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:49
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0044_add_hash_index_with_condition'),
]
operations = [
migrations.RemoveIndex(
model_name='testtable',
name='test_index',
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0046_add_spgist_index.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:49
import django.contrib.postgres.indexes
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0045_drop_hash_index_with_condition'),
]
operations = [
migrations.AddIndex(
model_name='testtable',
index=django.contrib.postgres.indexes.SpGistIndex(fields=['test_field_str'], name='test_index'),
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0047_drop_spgist_index.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:49
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0046_add_spgist_index'),
]
operations = [
migrations.RemoveIndex(
model_name='testtable',
name='test_index',
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0048_add_spgist_index_with_condition.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:49
import django.contrib.postgres.indexes
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0047_drop_spgist_index'),
]
operations = [
migrations.AddIndex(
model_name='testtable',
index=django.contrib.postgres.indexes.SpGistIndex(
condition=models.Q(test_field_str__isnull=False),
fields=['test_field_str'],
name='test_index',
),
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0049_drop_spgist_index_with_condition.py
================================================
# Generated by Django 3.0a1 on 2019-10-14 19:49
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0048_add_spgist_index_with_condition'),
]
operations = [
migrations.RemoveIndex(
model_name='testtable',
name='test_index',
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0050_add_unique_constraint_deferrable.py
================================================
# Generated by Django 4.2.20 on 2025-03-16 16:58
import django.db.models.constraints
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0049_drop_spgist_index_with_condition'),
]
operations = [
migrations.AddConstraint(
model_name='testtable',
constraint=models.UniqueConstraint(
deferrable=django.db.models.constraints.Deferrable['DEFERRED'],
fields=('test_field_int',),
name='test_uniq_constraint_deferred'
),
),
migrations.AddConstraint(
model_name='testtable',
constraint=models.UniqueConstraint(
deferrable=django.db.models.constraints.Deferrable['IMMEDIATE'],
fields=('test_field_str',),
name='test_uniq_constraint_immediate'
),
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/0051_drop_unique_constraint_deferrable.py
================================================
# Generated by Django 4.2.20 on 2025-03-16 16:58
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('good_flow_app', '0050_add_unique_constraint_deferrable'),
]
operations = [
migrations.RemoveConstraint(
model_name='testtable',
name='test_uniq_constraint_deferred',
),
migrations.RemoveConstraint(
model_name='testtable',
name='test_uniq_constraint_immediate',
),
]
================================================
FILE: tests/apps/good_flow_app/migrations/__init__.py
================================================
================================================
FILE: tests/apps/good_flow_app/models.py
================================================
from django.contrib.postgres.search import SearchVectorField
from django.db import models
class TestTable(models.Model):
test_field_int = models.IntegerField()
test_field_str = models.CharField(max_length=10)
test_field_tsv = SearchVectorField()
class RelatedTestTable(models.Model):
pass
================================================
FILE: tests/apps/good_flow_app_concurrently/__init__.py
================================================
================================================
FILE: tests/apps/good_flow_app_concurrently/migrations/0001_initial.py
================================================
# Generated by Django 3.1 on 2019-09-21 20:09
import django.contrib.postgres.search
from django.db import migrations, models
def insert_objects(apps, schema_editor):
db_alias = schema_editor.connection.alias
TestTable = apps.get_model('good_flow_app_concurrently', 'TestTable')
TestTable.objects.using(db_alias).create(test_field_int=1)
class Migration(migrations.Migration):
initial = True
dependencies = [
]
operations = [
migrations.CreateModel(
name='RelatedTestTable',
fields=[
('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
],
),
migrations.CreateModel(
name='TestTable',
fields=[
('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
('test_field_int', models.IntegerField()),
('test_field_str', models.CharField(max_length=10)),
('test_field_tsv', django.contrib.postgres.search.SearchVectorField()),
],
),
migrations.RunPython(insert_objects, migrations.RunPython.noop),
]
================================================
FILE: tests/apps/good_flow_app_concurrently/migrations/0002_auto_20191210_2147.py
================================================
# Generated by Django 3.0a1 on 2019-12-10 21:47
from django.contrib.postgres.operations import AddIndexConcurrently
from django.db import migrations, models
class Migration(migrations.Migration):
atomic = False
dependencies = [
('good_flow_app_concurrently', '0001_initial'),
]
operations = [
AddIndexConcurrently(
model_name='testtable',
index=models.Index(fields=['test_field_int'], name='good_flow_a_test_fi_0b7e6f_idx'),
),
]
================================================
FILE: tests/apps/good_flow_app_concurrently/migrations/0003_auto_20191210_2148.py
================================================
# Generated by Django 3.0a1 on 2019-12-10 21:48
from django.contrib.postgres.operations import RemoveIndexConcurrently
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
('good_flow_app_concurrently', '0002_auto_20191210_2147'),
]
operations = [
RemoveIndexConcurrently(
model_name='testtable',
name='good_flow_a_test_fi_0b7e6f_idx',
),
]
================================================
FILE: tests/apps/good_flow_app_concurrently/migrations/__init__.py
================================================
================================================
FILE: tests/apps/good_flow_app_concurrently/models.py
================================================
from django.contrib.postgres.search import SearchVectorField
from django.db import models
class TestTable(models.Model):
test_field_int = models.IntegerField()
test_field_str = models.CharField(max_length=10)
test_field_tsv = SearchVectorField()
class RelatedTestTable(models.Model):
pass
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints/__init__.py
================================================
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0001_initial.py
================================================
import django.db.models.deletion
import django.db.models.functions.math
from django.db import migrations, models
class Migration(migrations.Migration):
initial = True
dependencies = []
operations = [
migrations.CreateModel(
name="TestTableMain",
fields=[
(
"id",
models.AutoField(
auto_created=True,
primary_key=True,
serialize=False,
verbose_name="ID",
),
),
("main_id", models.IntegerField(null=True, unique=True)),
("field_u1", models.IntegerField(null=True)),
("field_u2", models.IntegerField(null=True)),
("field_u3", models.IntegerField(null=True)),
("field_u4", models.IntegerField(null=True)),
("field_u5", models.IntegerField(null=True)),
("field_u6", models.IntegerField(null=True)),
("field_u7", models.IntegerField(null=True)),
("field_i1", models.IntegerField(null=True)),
("field_i2", models.IntegerField(null=True)),
("field_i3", models.IntegerField(null=True)),
("field_i4", models.IntegerField(null=True)),
("field_i5", models.IntegerField(null=True)),
("field_i6", models.IntegerField(null=True)),
("field_i7", models.IntegerField(null=True)),
],
options={
"db_table": "drop_col_test_table_main",
},
),
migrations.CreateModel(
name="TestTableParent",
fields=[
(
"id",
models.AutoField(
auto_created=True,
primary_key=True,
serialize=False,
verbose_name="ID",
),
),
],
options={
"db_table": "drop_col_test_table_parent",
},
),
migrations.CreateModel(
name="TestTableChild",
fields=[
(
"id",
models.AutoField(
auto_created=True,
primary_key=True,
serialize=False,
verbose_name="ID",
),
),
(
"main",
models.ForeignKey(
null=True,
on_delete=django.db.models.deletion.CASCADE,
to="good_flow_drop_column_with_constraints.testtablemain",
to_field="main_id",
),
),
],
options={
"db_table": "drop_col_test_table_child",
},
),
migrations.AddField(
model_name="testtablemain",
name="parent",
field=models.OneToOneField(
null=True,
on_delete=django.db.models.deletion.CASCADE,
to="good_flow_drop_column_with_constraints.testtableparent",
),
),
migrations.AddIndex(
model_name="testtablemain",
index=models.Index(
models.F("parent"), models.F("field_i1"), name="drop_col_i1"
),
),
migrations.AddIndex(
model_name="testtablemain",
index=models.Index(fields=["parent", "field_i2"], name="drop_col_i2"),
),
migrations.AddIndex(
model_name="testtablemain",
index=models.Index(
django.db.models.functions.math.Abs("field_i3"), name="drop_col_i3"
),
),
migrations.AddIndex(
model_name="testtablemain",
index=models.Index(
models.F("parent"),
condition=models.Q(("field_i4__gt", 0)),
name="drop_col_i4",
),
),
migrations.AddIndex(
model_name="testtablemain",
index=models.Index(
condition=models.Q(("field_i5__gt", 0)),
fields=["parent"],
name="drop_col_i5",
),
),
migrations.AddIndex(
model_name="testtablemain",
index=models.Index(
models.F("parent"), include=("field_i6",), name="drop_col_i6"
),
),
migrations.AddIndex(
model_name="testtablemain",
index=models.Index(
fields=["parent"], include=("field_i7",), name="drop_col_i7"
),
),
migrations.AddConstraint(
model_name="testtablemain",
constraint=models.UniqueConstraint(
models.F("parent"), models.F("field_u1"), name="drop_col_u1"
),
),
migrations.AddConstraint(
model_name="testtablemain",
constraint=models.UniqueConstraint(
fields=("parent", "field_u2"), name="drop_col_u2"
),
),
migrations.AddConstraint(
model_name="testtablemain",
constraint=models.UniqueConstraint(
django.db.models.functions.math.Abs("field_u3"), name="drop_col_u3"
),
),
migrations.AddConstraint(
model_name="testtablemain",
constraint=models.UniqueConstraint(
models.F("parent"),
condition=models.Q(("field_u4__gt", 0)),
name="drop_col_u4",
),
),
migrations.AddConstraint(
model_name="testtablemain",
constraint=models.UniqueConstraint(
condition=models.Q(("field_u5__gt", 0)),
fields=("parent",),
name="drop_col_u5",
),
),
migrations.AddConstraint(
model_name="testtablemain",
constraint=models.UniqueConstraint(
models.F("parent"), include=("field_u6",), name="drop_col_u6"
),
),
migrations.AddConstraint(
model_name="testtablemain",
constraint=models.UniqueConstraint(
fields=("parent",), include=("field_u7",), name="drop_col_u7"
),
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0002_remove_testtablemain_drop_col_u1_and_more.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
("good_flow_drop_column_with_constraints", "0001_initial"),
]
operations = [
# emulate worst case untracked constraints
migrations.SeparateDatabaseAndState(
database_operations=[
# as constraint dropped with cascade or explicitly before cascade
# we need to back untracked constraint creation to make migration revert happy
migrations.RunSQL(
migrations.RunSQL.noop,
"""
ALTER TABLE "drop_col_test_table_main"
ADD CONSTRAINT "drop_col_u2" UNIQUE ("parent_id", "field_u2");
"""
)
],
state_operations=[
migrations.RemoveConstraint(
model_name="testtablemain",
name="drop_col_u1",
),
migrations.RemoveConstraint(
model_name="testtablemain",
name="drop_col_u2",
),
migrations.RemoveConstraint(
model_name="testtablemain",
name="drop_col_u3",
),
migrations.RemoveConstraint(
model_name="testtablemain",
name="drop_col_u4",
),
migrations.RemoveConstraint(
model_name="testtablemain",
name="drop_col_u5",
),
migrations.RemoveConstraint(
model_name="testtablemain",
name="drop_col_u6",
),
migrations.RemoveConstraint(
model_name="testtablemain",
name="drop_col_u7",
),
migrations.RemoveIndex(
model_name="testtablemain",
name="drop_col_i1",
),
migrations.RemoveIndex(
model_name="testtablemain",
name="drop_col_i2",
),
migrations.RemoveIndex(
model_name="testtablemain",
name="drop_col_i3",
),
migrations.RemoveIndex(
model_name="testtablemain",
name="drop_col_i4",
),
migrations.RemoveIndex(
model_name="testtablemain",
name="drop_col_i5",
),
migrations.RemoveIndex(
model_name="testtablemain",
name="drop_col_i6",
),
migrations.RemoveIndex(
model_name="testtablemain",
name="drop_col_i7",
),
migrations.RemoveField(
model_name="testtablechild",
name="main",
),
],
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0003_remove_testtablemain_field_i7.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
(
"good_flow_drop_column_with_constraints",
"0002_remove_testtablemain_drop_col_u1_and_more",
),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="field_i7",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0004_remove_testtablemain_field_i6.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
(
"good_flow_drop_column_with_constraints",
"0003_remove_testtablemain_field_i7",
),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="field_i6",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0005_remove_testtablemain_field_i5.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
(
"good_flow_drop_column_with_constraints",
"0004_remove_testtablemain_field_i6",
),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="field_i5",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0006_remove_testtablemain_field_i4.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
(
"good_flow_drop_column_with_constraints",
"0005_remove_testtablemain_field_i5",
),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="field_i4",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0007_remove_testtablemain_field_i3.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
(
"good_flow_drop_column_with_constraints",
"0006_remove_testtablemain_field_i4",
),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="field_i3",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0008_remove_testtablemain_field_i2.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
(
"good_flow_drop_column_with_constraints",
"0007_remove_testtablemain_field_i3",
),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="field_i2",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0009_remove_testtablemain_field_i1.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
(
"good_flow_drop_column_with_constraints",
"0008_remove_testtablemain_field_i2",
),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="field_i1",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0010_remove_testtablemain_field_u7.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
(
"good_flow_drop_column_with_constraints",
"0009_remove_testtablemain_field_i1",
),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="field_u7",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0011_remove_testtablemain_field_u6.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
(
"good_flow_drop_column_with_constraints",
"0010_remove_testtablemain_field_u7",
),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="field_u6",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0012_remove_testtablemain_field_u5.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
(
"good_flow_drop_column_with_constraints",
"0011_remove_testtablemain_field_u6",
),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="field_u5",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0013_remove_testtablemain_field_u4.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
(
"good_flow_drop_column_with_constraints",
"0012_remove_testtablemain_field_u5",
),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="field_u4",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0014_remove_testtablemain_field_u3.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
(
"good_flow_drop_column_with_constraints",
"0013_remove_testtablemain_field_u4",
),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="field_u3",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0015_remove_testtablemain_field_u2.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
(
"good_flow_drop_column_with_constraints",
"0014_remove_testtablemain_field_u3",
),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="field_u2",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0016_remove_testtablemain_field_u1.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
(
"good_flow_drop_column_with_constraints",
"0015_remove_testtablemain_field_u2",
),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="field_u1",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0017_remove_testtablemain_main_id.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
(
"good_flow_drop_column_with_constraints",
"0016_remove_testtablemain_field_u1",
),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="main_id",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0018_remove_testtablemain_parent.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
("good_flow_drop_column_with_constraints", "0017_remove_testtablemain_main_id"),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="parent",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/__init__.py
================================================
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints/models.py
================================================
from django.db import models
# from django.db.models.functions import Abs
class TestTableParent(models.Model):
class Meta:
db_table = 'drop_col_test_table_parent'
class TestTableMain(models.Model):
# parent = models.OneToOneField(TestTableParent, null=True, on_delete=models.CASCADE)
# main_id = models.IntegerField(null=True, unique=True)
# field_u1 = models.IntegerField(null=True)
# field_u2 = models.IntegerField(null=True)
# field_u3 = models.IntegerField(null=True)
# field_u4 = models.IntegerField(null=True)
# field_u5 = models.IntegerField(null=True)
# field_u6 = models.IntegerField(null=True)
# field_u7 = models.IntegerField(null=True)
# field_i1 = models.IntegerField(null=True)
# field_i2 = models.IntegerField(null=True)
# field_i3 = models.IntegerField(null=True)
# field_i4 = models.IntegerField(null=True)
# field_i5 = models.IntegerField(null=True)
# field_i6 = models.IntegerField(null=True)
# field_i7 = models.IntegerField(null=True)
class Meta:
db_table = 'drop_col_test_table_main'
# constraints = [
# models.UniqueConstraint("parent", "field_u1", name="drop_col_u1"),
# models.UniqueConstraint(fields=["parent", "field_u2"], name="drop_col_u2"),
# models.UniqueConstraint(Abs("field_u3"), name="drop_col_u3"),
# models.UniqueConstraint("parent", name="drop_col_u4", condition=models.Q(field_u4__gt=0)),
# models.UniqueConstraint(fields=["parent"], name="drop_col_u5", condition=models.Q(field_u5__gt=0)),
# models.UniqueConstraint("parent", name="drop_col_u6", include=["field_u6"]),
# models.UniqueConstraint(fields=["parent"], name="drop_col_u7", include=["field_u7"]),
# ]
# indexes = [
# models.Index("parent", "field_i1", name="drop_col_i1"),
# models.Index(fields=["parent", "field_i2"], name="drop_col_i2"),
# models.Index(Abs("field_i3"), name="drop_col_i3"),
# models.Index("parent", name="drop_col_i4", condition=models.Q(field_i4__gt=0)),
# models.Index(fields=["parent"], name="drop_col_i5", condition=models.Q(field_i5__gt=0)),
# models.Index("parent", name="drop_col_i6", include=["field_i6"]),
# models.Index(fields=["parent"], name="drop_col_i7", include=["field_i7"]),
# ]
class TestTableChild(models.Model):
# main = models.ForeignKey(TestTableMain, to_field="main_id", null=True, on_delete=models.CASCADE)
class Meta:
db_table = 'drop_col_test_table_child'
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints_old/__init__.py
================================================
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0001_initial.py
================================================
import django.db.models.deletion
import django.db.models.functions.math
from django.db import migrations, models
class Migration(migrations.Migration):
initial = True
dependencies = []
operations = [
migrations.CreateModel(
name="TestTableMain",
fields=[
(
"id",
models.AutoField(
auto_created=True,
primary_key=True,
serialize=False,
verbose_name="ID",
),
),
("main_id", models.IntegerField(null=True, unique=True)),
("field_u2", models.IntegerField(null=True)),
("field_u5", models.IntegerField(null=True)),
("field_u7", models.IntegerField(null=True)),
("field_i1", models.IntegerField(null=True)),
("field_i2", models.IntegerField(null=True)),
("field_i3", models.IntegerField(null=True)),
("field_i4", models.IntegerField(null=True)),
("field_i5", models.IntegerField(null=True)),
("field_i6", models.IntegerField(null=True)),
("field_i7", models.IntegerField(null=True)),
],
options={
"db_table": "drop_col_test_table_main",
},
),
migrations.CreateModel(
name="TestTableParent",
fields=[
(
"id",
models.AutoField(
auto_created=True,
primary_key=True,
serialize=False,
verbose_name="ID",
),
),
],
options={
"db_table": "drop_col_test_table_parent",
},
),
migrations.CreateModel(
name="TestTableChild",
fields=[
(
"id",
models.AutoField(
auto_created=True,
primary_key=True,
serialize=False,
verbose_name="ID",
),
),
(
"main",
models.ForeignKey(
null=True,
on_delete=django.db.models.deletion.CASCADE,
to="good_flow_drop_column_with_constraints_old.testtablemain",
to_field="main_id",
),
),
],
options={
"db_table": "drop_col_test_table_child",
},
),
migrations.AddField(
model_name="testtablemain",
name="parent",
field=models.OneToOneField(
null=True,
on_delete=django.db.models.deletion.CASCADE,
to="good_flow_drop_column_with_constraints_old.testtableparent",
),
),
migrations.AddIndex(
model_name="testtablemain",
index=models.Index(
models.F("parent"), models.F("field_i1"), name="drop_col_i1"
),
),
migrations.AddIndex(
model_name="testtablemain",
index=models.Index(fields=["parent", "field_i2"], name="drop_col_i2"),
),
migrations.AddIndex(
model_name="testtablemain",
index=models.Index(
django.db.models.functions.math.Abs("field_i3"), name="drop_col_i3"
),
),
migrations.AddIndex(
model_name="testtablemain",
index=models.Index(
models.F("parent"),
condition=models.Q(("field_i4__gt", 0)),
name="drop_col_i4",
),
),
migrations.AddIndex(
model_name="testtablemain",
index=models.Index(
condition=models.Q(("field_i5__gt", 0)),
fields=["parent"],
name="drop_col_i5",
),
),
migrations.AddIndex(
model_name="testtablemain",
index=models.Index(
models.F("parent"), include=("field_i6",), name="drop_col_i6"
),
),
migrations.AddIndex(
model_name="testtablemain",
index=models.Index(
fields=["parent"], include=("field_i7",), name="drop_col_i7"
),
),
migrations.AddConstraint(
model_name="testtablemain",
constraint=models.UniqueConstraint(
fields=("parent", "field_u2"), name="drop_col_u2"
),
),
migrations.AddConstraint(
model_name="testtablemain",
constraint=models.UniqueConstraint(
condition=models.Q(("field_u5__gt", 0)),
fields=("parent",),
name="drop_col_u5",
),
),
migrations.AddConstraint(
model_name="testtablemain",
constraint=models.UniqueConstraint(
fields=("parent",), include=("field_u7",), name="drop_col_u7"
),
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0002_remove_testtablemain_drop_col_u2_and_more.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
("good_flow_drop_column_with_constraints_old", "0001_initial"),
]
operations = [
# emulate worst case untracked constraints
migrations.SeparateDatabaseAndState(
database_operations=[
# as constraint dropped with cascade or explicitly before cascade
# we need to back untracked constraint creation to make migration revert happy
migrations.RunSQL(
migrations.RunSQL.noop,
"""
ALTER TABLE "drop_col_test_table_main"
ADD CONSTRAINT "drop_col_u2" UNIQUE ("parent_id", "field_u2");
"""
)
],
state_operations=[
migrations.RemoveConstraint(
model_name="testtablemain",
name="drop_col_u2",
),
migrations.RemoveConstraint(
model_name="testtablemain",
name="drop_col_u5",
),
migrations.RemoveConstraint(
model_name="testtablemain",
name="drop_col_u7",
),
migrations.RemoveIndex(
model_name="testtablemain",
name="drop_col_i1",
),
migrations.RemoveIndex(
model_name="testtablemain",
name="drop_col_i2",
),
migrations.RemoveIndex(
model_name="testtablemain",
name="drop_col_i3",
),
migrations.RemoveIndex(
model_name="testtablemain",
name="drop_col_i4",
),
migrations.RemoveIndex(
model_name="testtablemain",
name="drop_col_i5",
),
migrations.RemoveIndex(
model_name="testtablemain",
name="drop_col_i6",
),
migrations.RemoveIndex(
model_name="testtablemain",
name="drop_col_i7",
),
migrations.RemoveField(
model_name="testtablechild",
name="main",
),
],
)
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0003_remove_testtablemain_field_i7.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
(
"good_flow_drop_column_with_constraints_old",
"0002_remove_testtablemain_drop_col_u2_and_more",
),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="field_i7",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0004_remove_testtablemain_field_i6.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
(
"good_flow_drop_column_with_constraints_old",
"0003_remove_testtablemain_field_i7",
),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="field_i6",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0005_remove_testtablemain_field_i5.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
(
"good_flow_drop_column_with_constraints_old",
"0004_remove_testtablemain_field_i6",
),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="field_i5",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0006_remove_testtablemain_field_i4.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
(
"good_flow_drop_column_with_constraints_old",
"0005_remove_testtablemain_field_i5",
),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="field_i4",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0007_remove_testtablemain_field_i3.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
(
"good_flow_drop_column_with_constraints_old",
"0006_remove_testtablemain_field_i4",
),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="field_i3",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0008_remove_testtablemain_field_i2.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
(
"good_flow_drop_column_with_constraints_old",
"0007_remove_testtablemain_field_i3",
),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="field_i2",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0009_remove_testtablemain_field_i1.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
(
"good_flow_drop_column_with_constraints_old",
"0008_remove_testtablemain_field_i2",
),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="field_i1",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0010_remove_testtablemain_field_u7.py
================================================
from django.db import migrations
class Migration(migrations.Migration):
atomic = False
dependencies = [
(
"good_flow_drop_column_with_constraints_old",
"0009_remove_testtablemain_field_i1",
),
]
operations = [
migrations.RemoveField(
model_name="testtablemain",
name="field_u7",
),
]
================================================
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0011_remove_testtablemain_field_u5.py
==============
gitextract_4w34wnk2/ ├── .github/ │ ├── FUNDING.yml │ ├── ISSUE_TEMPLATE/ │ │ └── bug_report.md │ └── workflows/ │ ├── check.yml │ └── publish.yml ├── .gitignore ├── .pre-commit-config.yaml ├── AUTHORS ├── CHANGES.md ├── Dockerfile ├── LICENSE ├── MANIFEST.in ├── README.md ├── django_zero_downtime_migrations/ │ ├── __init__.py │ └── backends/ │ ├── __init__.py │ ├── postgis/ │ │ ├── __init__.py │ │ ├── base.py │ │ └── schema.py │ └── postgres/ │ ├── __init__.py │ ├── base.py │ └── schema.py ├── docker-compose.yml ├── docker_postgres_init.sql ├── manage.py ├── setup.cfg ├── setup.py ├── tests/ │ ├── __init__.py │ ├── apps/ │ │ ├── __init__.py │ │ ├── bad_flow_add_column_with_default_app/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_add_field_default.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── bad_flow_add_column_with_notnull_app/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_add_field_notnull.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── bad_flow_add_column_with_notnull_default_app/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_add_field_notnull_default.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── bad_flow_change_char_type_that_unsafe_app/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_change_type_from_char120_to_char100.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── bad_rollback_flow_change_char_type_that_safe_app/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_change_type_safe_from_char100_to_char120.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── bad_rollback_flow_drop_column_with_notnull_app/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_drop_field_not_null.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── bad_rollback_flow_drop_column_with_notnull_default_app/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_drop_field_not_null_default.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── decimal_to_float_app/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_type_conversion.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── good_flow_alter_table_with_same_db_table/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_rename_model.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── good_flow_app/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_add_nullable_field.py │ │ │ │ ├── 0003_set_field_default.py │ │ │ │ ├── 0004_set_field_not_null.py │ │ │ │ ├── 0005_drop_field_not_null.py │ │ │ │ ├── 0006_drop_field_default.py │ │ │ │ ├── 0007_drop_field.py │ │ │ │ ├── 0008_add_field_with_check_constraint.py │ │ │ │ ├── 0009_drop_field_with_check_constraint.py │ │ │ │ ├── 0010_add_field_with_foreign_key.py │ │ │ │ ├── 0011_drop_field_with_foreign_key.py │ │ │ │ ├── 0012_add_field_with_unique_constraint.py │ │ │ │ ├── 0013_drop_field_with_unique_constraint.py │ │ │ │ ├── 0014_add_field_with_index.py │ │ │ │ ├── 0015_drop_field_with_index.py │ │ │ │ ├── 0016_add_check_constraint.py │ │ │ │ ├── 0017_drop_check_constraint.py │ │ │ │ ├── 0018_add_unique_constraint.py │ │ │ │ ├── 0019_drop_unique_constraint.py │ │ │ │ ├── 0020_add_unique_constraint_with_condition.py │ │ │ │ ├── 0021_drop_unique_constraint_with_condition.py │ │ │ │ ├── 0022_add_index.py │ │ │ │ ├── 0023_drop_index.py │ │ │ │ ├── 0024_add_index_with_condition.py │ │ │ │ ├── 0025_drop_index_with_condition.py │ │ │ │ ├── 0026_add_brin_index.py │ │ │ │ ├── 0027_drop_brin_index.py │ │ │ │ ├── 0028_add_brin_index_with_condition.py │ │ │ │ ├── 0029_drop_brin_index_with_condition.py │ │ │ │ ├── 0030_add_btree_index.py │ │ │ │ ├── 0031_drop_btree_index.py │ │ │ │ ├── 0032_add_btree_index_with_condition.py │ │ │ │ ├── 0033_drop_btree_index_with_condition.py │ │ │ │ ├── 0034_add_gin_index.py │ │ │ │ ├── 0035_drop_gin_index.py │ │ │ │ ├── 0036_add_gin_index_with_condition.py │ │ │ │ ├── 0037_drop_gin_index_with_condition.py │ │ │ │ ├── 0038_add_gist_index.py │ │ │ │ ├── 0039_drop_gist_index.py │ │ │ │ ├── 0040_add_gist_index_with_condition.py │ │ │ │ ├── 0041_drop_gist_index_with_condition.py │ │ │ │ ├── 0042_add_hash_index.py │ │ │ │ ├── 0043_drop_hash_index.py │ │ │ │ ├── 0044_add_hash_index_with_condition.py │ │ │ │ ├── 0045_drop_hash_index_with_condition.py │ │ │ │ ├── 0046_add_spgist_index.py │ │ │ │ ├── 0047_drop_spgist_index.py │ │ │ │ ├── 0048_add_spgist_index_with_condition.py │ │ │ │ ├── 0049_drop_spgist_index_with_condition.py │ │ │ │ ├── 0050_add_unique_constraint_deferrable.py │ │ │ │ ├── 0051_drop_unique_constraint_deferrable.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── good_flow_app_concurrently/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_auto_20191210_2147.py │ │ │ │ ├── 0003_auto_20191210_2148.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── good_flow_drop_column_with_constraints/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_remove_testtablemain_drop_col_u1_and_more.py │ │ │ │ ├── 0003_remove_testtablemain_field_i7.py │ │ │ │ ├── 0004_remove_testtablemain_field_i6.py │ │ │ │ ├── 0005_remove_testtablemain_field_i5.py │ │ │ │ ├── 0006_remove_testtablemain_field_i4.py │ │ │ │ ├── 0007_remove_testtablemain_field_i3.py │ │ │ │ ├── 0008_remove_testtablemain_field_i2.py │ │ │ │ ├── 0009_remove_testtablemain_field_i1.py │ │ │ │ ├── 0010_remove_testtablemain_field_u7.py │ │ │ │ ├── 0011_remove_testtablemain_field_u6.py │ │ │ │ ├── 0012_remove_testtablemain_field_u5.py │ │ │ │ ├── 0013_remove_testtablemain_field_u4.py │ │ │ │ ├── 0014_remove_testtablemain_field_u3.py │ │ │ │ ├── 0015_remove_testtablemain_field_u2.py │ │ │ │ ├── 0016_remove_testtablemain_field_u1.py │ │ │ │ ├── 0017_remove_testtablemain_main_id.py │ │ │ │ ├── 0018_remove_testtablemain_parent.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── good_flow_drop_column_with_constraints_old/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_remove_testtablemain_drop_col_u2_and_more.py │ │ │ │ ├── 0003_remove_testtablemain_field_i7.py │ │ │ │ ├── 0004_remove_testtablemain_field_i6.py │ │ │ │ ├── 0005_remove_testtablemain_field_i5.py │ │ │ │ ├── 0006_remove_testtablemain_field_i4.py │ │ │ │ ├── 0007_remove_testtablemain_field_i3.py │ │ │ │ ├── 0008_remove_testtablemain_field_i2.py │ │ │ │ ├── 0009_remove_testtablemain_field_i1.py │ │ │ │ ├── 0010_remove_testtablemain_field_u7.py │ │ │ │ ├── 0011_remove_testtablemain_field_u5.py │ │ │ │ ├── 0012_remove_testtablemain_field_u2.py │ │ │ │ ├── 0013_remove_testtablemain_main_id.py │ │ │ │ ├── 0014_remove_testtablemain_parent.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── good_flow_drop_table_with_constraints/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_remove_testtablechild_main.py │ │ │ │ ├── 0003_delete_testtablemain.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── idempotency_add_auto_field_app/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_alter_relatedtesttable_test_field_int.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── idempotency_add_check_app/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_relatedtesttable_idempotency_add_check_app_relatedtesttable_check.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── idempotency_add_column_app/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_relatedtesttable_test_field_str.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── idempotency_add_column_foreign_key_app/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_relatedtesttable_test_model.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── idempotency_add_column_one_to_one_app/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_relatedtesttable_test_model.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── idempotency_add_foreign_key_app/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_alter_relatedtesttable_test_field_int.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── idempotency_add_index_app/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_alter_relatedtesttable_test_field_int.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── idempotency_add_index_meta_app/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_relatedtesttable_relatedtesttable_idx.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── idempotency_add_one_to_one_app/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_alter_relatedtesttable_test_field_int.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── idempotency_add_primary_key_app/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_remove_relatedtesttable_id_and_more.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── idempotency_add_unique_app/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_alter_relatedtesttable_test_field_int.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── idempotency_add_unique_meta_app/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_relatedtesttable_relatedtesttable_uniq.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── idempotency_create_table_app/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_relatedtesttable_and_more.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ ├── idempotency_set_not_null_app/ │ │ │ ├── __init__.py │ │ │ ├── migrations/ │ │ │ │ ├── 0001_initial.py │ │ │ │ ├── 0002_alter_relatedtesttable_test_field_int.py │ │ │ │ └── __init__.py │ │ │ └── models.py │ │ └── old_notnull_check_constraint_migration_app/ │ │ ├── __init__.py │ │ ├── migrations/ │ │ │ ├── 0001_initial.py │ │ │ └── __init__.py │ │ └── models.py │ ├── integration/ │ │ ├── __init__.py │ │ └── test_migrations.py │ ├── settings.py │ ├── settings_make_migrations.py │ └── unit/ │ ├── __init__.py │ └── test_schema.py └── tox.ini
SYMBOL INDEX (461 symbols across 174 files)
FILE: django_zero_downtime_migrations/backends/postgis/base.py
class DatabaseWrapper (line 8) | class DatabaseWrapper(PostGISDatabaseWrapper):
FILE: django_zero_downtime_migrations/backends/postgis/schema.py
class DatabaseSchemaEditor (line 8) | class DatabaseSchemaEditor(DatabaseSchemaEditorMixin, PostGISSchemaEditor):
FILE: django_zero_downtime_migrations/backends/postgres/base.py
class DatabaseWrapper (line 8) | class DatabaseWrapper(PostgresDatabaseWrapper):
FILE: django_zero_downtime_migrations/backends/postgres/schema.py
class Unsafe (line 15) | class Unsafe:
class UnsafeOperationWarning (line 48) | class UnsafeOperationWarning(Warning):
class UnsafeOperationException (line 52) | class UnsafeOperationException(Exception):
class DummySQL (line 56) | class DummySQL:
method __mod__ (line 57) | def __mod__(self, other):
method format (line 60) | def format(self, *args, **kwargs):
class Condition (line 67) | class Condition:
method __init__ (line 68) | def __init__(self, sql, exists, idempotent_mode_only=False):
method __str__ (line 73) | def __str__(self):
method __repr__ (line 76) | def __repr__(self):
method __mod__ (line 79) | def __mod__(self, other):
method format (line 86) | def format(self, *args, **kwargs):
class MultiStatementSQL (line 94) | class MultiStatementSQL(list):
method __init__ (line 96) | def __init__(self, obj, *args):
method __str__ (line 101) | def __str__(self):
method __repr__ (line 104) | def __repr__(self):
method __mod__ (line 107) | def __mod__(self, other):
method format (line 116) | def format(self, *args, **kwargs):
class PGLock (line 122) | class PGLock:
method __init__ (line 124) | def __init__(
method __str__ (line 139) | def __str__(self):
method __repr__ (line 142) | def __repr__(self):
method __mod__ (line 145) | def __mod__(self, other):
method format (line 160) | def format(self, *args, **kwargs):
class PGAccessExclusive (line 172) | class PGAccessExclusive(PGLock):
method __init__ (line 174) | def __init__(
class PGShareUpdateExclusive (line 190) | class PGShareUpdateExclusive(PGLock):
method __init__ (line 192) | def __init__(
class DatabaseSchemaEditorMixin (line 208) | class DatabaseSchemaEditorMixin:
method sql_alter_column_no_default_null (line 515) | def sql_alter_column_no_default_null(self):
method sql_alter_column_no_default (line 521) | def sql_alter_column_no_default(self):
method __init__ (line 526) | def __init__(self, connection, collect_sql=False, atomic=True):
method execute (line 556) | def execute(self, sql, params=()):
method _skip_applied (line 593) | def _skip_applied(self, idempotent_condition: Condition) -> bool:
method _set_operation_timeout (line 611) | def _set_operation_timeout(self, statement_timeout=None, lock_timeout=...
method _flush_deferred_sql (line 631) | def _flush_deferred_sql(self):
method _get_constraints (line 646) | def _get_constraints(self, cursor, model):
method _get_indexes (line 651) | def _get_indexes(self, cursor, model):
method _drop_collect_sql_introspection_related_duplicates (line 656) | def _drop_collect_sql_introspection_related_duplicates(self, drop_cons...
method create_model (line 677) | def create_model(self, model):
method delete_model (line 681) | def delete_model(self, model):
method alter_index_together (line 699) | def alter_index_together(self, model, old_index_together, new_index_to...
method alter_unique_together (line 703) | def alter_unique_together(self, model, old_unique_together, new_unique...
method add_index (line 707) | def add_index(self, model, index, concurrently=False):
method remove_index (line 711) | def remove_index(self, model, index, concurrently=False):
method add_constraint (line 715) | def add_constraint(self, model, constraint):
method remove_constraint (line 724) | def remove_constraint(self, model, constraint):
method add_field (line 728) | def add_field(self, model, field):
method remove_field (line 732) | def remove_field(self, model, field):
method alter_field (line 784) | def alter_field(self, model, old_field, new_field, strict=False):
method alter_db_table (line 788) | def alter_db_table(self, model, old_db_table, new_db_table):
method alter_db_tablespace (line 798) | def alter_db_tablespace(self, model, old_db_tablespace, new_db_tablesp...
method alter_db_table_comment (line 806) | def alter_db_table_comment(self, model, old_db_table_comment, new_db_t...
method _rename_field_sql (line 810) | def _rename_field_sql(self, table, old_field, new_field, new_type):
method _has_db_default (line 817) | def _has_db_default(self, field):
method _add_column_not_null (line 826) | def _add_column_not_null(self, model, field):
method _add_column_primary_key (line 834) | def _add_column_primary_key(self, model, field):
method _add_column_unique (line 842) | def _add_column_unique(self, model, field):
method _patched_iter_column_sql (line 846) | def _patched_iter_column_sql(
method _iter_column_sql (line 916) | def _iter_column_sql(
method _alter_column_set_not_null (line 938) | def _alter_column_set_not_null(self, model, new_field):
method _alter_column_drop_not_null (line 948) | def _alter_column_drop_not_null(self, model, new_field):
method _alter_column_null_sql (line 953) | def _alter_column_null_sql(self, model, old_field, new_field):
method _immediate_type_cast (line 959) | def _immediate_type_cast(self, old_type, new_type):
method _alter_column_type_sql (line 995) | def _alter_column_type_sql(self, model, old_field, new_field, new_type...
class DatabaseSchemaEditor (line 1006) | class DatabaseSchemaEditor(DatabaseSchemaEditorMixin, PostgresDatabaseSc...
FILE: manage.py
function main (line 7) | def main():
FILE: setup.py
function _replace_internal_images_with_external (line 6) | def _replace_internal_images_with_external(text):
function _get_long_description (line 14) | def _get_long_description():
FILE: tests/apps/bad_flow_add_column_with_default_app/migrations/0001_initial.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/bad_flow_add_column_with_default_app/migrations/0002_add_field_default.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/bad_flow_add_column_with_default_app/models.py
class TestTable (line 4) | class TestTable(models.Model):
FILE: tests/apps/bad_flow_add_column_with_notnull_app/migrations/0001_initial.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/bad_flow_add_column_with_notnull_app/migrations/0002_add_field_notnull.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/bad_flow_add_column_with_notnull_app/models.py
class TestTable (line 4) | class TestTable(models.Model):
FILE: tests/apps/bad_flow_add_column_with_notnull_default_app/migrations/0001_initial.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/bad_flow_add_column_with_notnull_default_app/migrations/0002_add_field_notnull_default.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/bad_flow_add_column_with_notnull_default_app/models.py
class TestTable (line 4) | class TestTable(models.Model):
FILE: tests/apps/bad_flow_change_char_type_that_unsafe_app/migrations/0001_initial.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/bad_flow_change_char_type_that_unsafe_app/migrations/0002_change_type_from_char120_to_char100.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/bad_flow_change_char_type_that_unsafe_app/models.py
class TestTable (line 4) | class TestTable(models.Model):
FILE: tests/apps/bad_rollback_flow_change_char_type_that_safe_app/migrations/0001_initial.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/bad_rollback_flow_change_char_type_that_safe_app/migrations/0002_change_type_safe_from_char100_to_char120.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/bad_rollback_flow_change_char_type_that_safe_app/models.py
class TestTable (line 4) | class TestTable(models.Model):
FILE: tests/apps/bad_rollback_flow_drop_column_with_notnull_app/migrations/0001_initial.py
function insert_objects (line 6) | def insert_objects(apps, schema_editor):
class Migration (line 12) | class Migration(migrations.Migration):
FILE: tests/apps/bad_rollback_flow_drop_column_with_notnull_app/migrations/0002_drop_field_not_null.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/bad_rollback_flow_drop_column_with_notnull_app/models.py
class TestTable (line 4) | class TestTable(models.Model):
FILE: tests/apps/bad_rollback_flow_drop_column_with_notnull_default_app/migrations/0001_initial.py
function insert_objects (line 6) | def insert_objects(apps, schema_editor):
class Migration (line 12) | class Migration(migrations.Migration):
FILE: tests/apps/bad_rollback_flow_drop_column_with_notnull_default_app/migrations/0002_drop_field_not_null_default.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/bad_rollback_flow_drop_column_with_notnull_default_app/models.py
class TestTable (line 4) | class TestTable(models.Model):
FILE: tests/apps/decimal_to_float_app/migrations/0001_initial.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/decimal_to_float_app/migrations/0002_type_conversion.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/decimal_to_float_app/models.py
class Value (line 4) | class Value(models.Model):
FILE: tests/apps/good_flow_alter_table_with_same_db_table/migrations/0001_initial.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_alter_table_with_same_db_table/migrations/0002_rename_model.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_alter_table_with_same_db_table/models.py
class TestTableRenamed (line 4) | class TestTableRenamed(models.Model):
class Meta (line 6) | class Meta:
FILE: tests/apps/good_flow_app/migrations/0001_initial.py
function insert_objects (line 7) | def insert_objects(apps, schema_editor):
class Migration (line 13) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0002_add_nullable_field.py
function insert_objects_and_null_check (line 6) | def insert_objects_and_null_check(apps, schema_editor):
class Migration (line 14) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0003_set_field_default.py
function insert_objects_and_default_check (line 6) | def insert_objects_and_default_check(apps, schema_editor):
class Migration (line 17) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0004_set_field_not_null.py
function flush_deferred_sql (line 6) | def flush_deferred_sql(apps, schema_editor):
function update_objects (line 11) | def update_objects(apps, schema_editor):
function insert_objects_and_not_null_check (line 17) | def insert_objects_and_not_null_check(apps, schema_editor):
class Migration (line 30) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0005_drop_field_not_null.py
function insert_objects_and_default_check (line 6) | def insert_objects_and_default_check(apps, schema_editor):
class Migration (line 17) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0006_drop_field_default.py
function insert_objects_and_null_check (line 6) | def insert_objects_and_null_check(apps, schema_editor):
class Migration (line 14) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0007_drop_field.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0008_add_field_with_check_constraint.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0009_drop_field_with_check_constraint.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0010_add_field_with_foreign_key.py
class Migration (line 7) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0011_drop_field_with_foreign_key.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0012_add_field_with_unique_constraint.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0013_drop_field_with_unique_constraint.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0014_add_field_with_index.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0015_drop_field_with_index.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0016_add_check_constraint.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0017_drop_check_constraint.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0018_add_unique_constraint.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0019_drop_unique_constraint.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0020_add_unique_constraint_with_condition.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0021_drop_unique_constraint_with_condition.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0022_add_index.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0023_drop_index.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0024_add_index_with_condition.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0025_drop_index_with_condition.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0026_add_brin_index.py
class Migration (line 7) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0027_drop_brin_index.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0028_add_brin_index_with_condition.py
class Migration (line 7) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0029_drop_brin_index_with_condition.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0030_add_btree_index.py
class Migration (line 7) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0031_drop_btree_index.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0032_add_btree_index_with_condition.py
class Migration (line 7) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0033_drop_btree_index_with_condition.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0034_add_gin_index.py
class Migration (line 7) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0035_drop_gin_index.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0036_add_gin_index_with_condition.py
class Migration (line 7) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0037_drop_gin_index_with_condition.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0038_add_gist_index.py
class Migration (line 7) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0039_drop_gist_index.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0040_add_gist_index_with_condition.py
class Migration (line 7) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0041_drop_gist_index_with_condition.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0042_add_hash_index.py
class Migration (line 7) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0043_drop_hash_index.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0044_add_hash_index_with_condition.py
class Migration (line 7) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0045_drop_hash_index_with_condition.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0046_add_spgist_index.py
class Migration (line 7) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0047_drop_spgist_index.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0048_add_spgist_index_with_condition.py
class Migration (line 7) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0049_drop_spgist_index_with_condition.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0050_add_unique_constraint_deferrable.py
class Migration (line 7) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/migrations/0051_drop_unique_constraint_deferrable.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app/models.py
class TestTable (line 5) | class TestTable(models.Model):
class RelatedTestTable (line 11) | class RelatedTestTable(models.Model):
FILE: tests/apps/good_flow_app_concurrently/migrations/0001_initial.py
function insert_objects (line 7) | def insert_objects(apps, schema_editor):
class Migration (line 13) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app_concurrently/migrations/0002_auto_20191210_2147.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app_concurrently/migrations/0003_auto_20191210_2148.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_app_concurrently/models.py
class TestTable (line 5) | class TestTable(models.Model):
class RelatedTestTable (line 11) | class RelatedTestTable(models.Model):
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0001_initial.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0002_remove_testtablemain_drop_col_u1_and_more.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0003_remove_testtablemain_field_i7.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0004_remove_testtablemain_field_i6.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0005_remove_testtablemain_field_i5.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0006_remove_testtablemain_field_i4.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0007_remove_testtablemain_field_i3.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0008_remove_testtablemain_field_i2.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0009_remove_testtablemain_field_i1.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0010_remove_testtablemain_field_u7.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0011_remove_testtablemain_field_u6.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0012_remove_testtablemain_field_u5.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0013_remove_testtablemain_field_u4.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0014_remove_testtablemain_field_u3.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0015_remove_testtablemain_field_u2.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0016_remove_testtablemain_field_u1.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0017_remove_testtablemain_main_id.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints/migrations/0018_remove_testtablemain_parent.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints/models.py
class TestTableParent (line 6) | class TestTableParent(models.Model):
class Meta (line 8) | class Meta:
class TestTableMain (line 12) | class TestTableMain(models.Model):
class Meta (line 30) | class Meta:
class TestTableChild (line 52) | class TestTableChild(models.Model):
class Meta (line 55) | class Meta:
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0001_initial.py
class Migration (line 6) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0002_remove_testtablemain_drop_col_u2_and_more.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0003_remove_testtablemain_field_i7.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0004_remove_testtablemain_field_i6.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0005_remove_testtablemain_field_i5.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0006_remove_testtablemain_field_i4.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0007_remove_testtablemain_field_i3.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0008_remove_testtablemain_field_i2.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0009_remove_testtablemain_field_i1.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0010_remove_testtablemain_field_u7.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0011_remove_testtablemain_field_u5.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0012_remove_testtablemain_field_u2.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0013_remove_testtablemain_main_id.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints_old/migrations/0014_remove_testtablemain_parent.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_column_with_constraints_old/models.py
class TestTableParent (line 6) | class TestTableParent(models.Model):
class Meta (line 8) | class Meta:
class TestTableMain (line 12) | class TestTableMain(models.Model):
class Meta (line 26) | class Meta:
class TestTableChild (line 44) | class TestTableChild(models.Model):
class Meta (line 47) | class Meta:
FILE: tests/apps/good_flow_drop_table_with_constraints/migrations/0001_initial.py
class Migration (line 5) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_table_with_constraints/migrations/0002_remove_testtablechild_main.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_table_with_constraints/migrations/0003_delete_testtablemain.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/good_flow_drop_table_with_constraints/models.py
class TestTableParent (line 4) | class TestTableParent(models.Model):
class Meta (line 6) | class Meta:
class TestTableChild (line 18) | class TestTableChild(models.Model):
class Meta (line 21) | class Meta:
FILE: tests/apps/idempotency_add_auto_field_app/migrations/0001_initial.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_auto_field_app/migrations/0002_alter_relatedtesttable_test_field_int.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_auto_field_app/models.py
class TestTable (line 4) | class TestTable(models.Model):
class RelatedTestTable (line 9) | class RelatedTestTable(models.Model):
FILE: tests/apps/idempotency_add_check_app/migrations/0001_initial.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_check_app/migrations/0002_relatedtesttable_idempotency_add_check_app_relatedtesttable_check.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_check_app/models.py
class TestTable (line 4) | class TestTable(models.Model):
class RelatedTestTable (line 9) | class RelatedTestTable(models.Model):
class Meta (line 12) | class Meta:
FILE: tests/apps/idempotency_add_column_app/migrations/0001_initial.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_column_app/migrations/0002_relatedtesttable_test_field_str.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_column_app/models.py
class TestTable (line 4) | class TestTable(models.Model):
class RelatedTestTable (line 9) | class RelatedTestTable(models.Model):
FILE: tests/apps/idempotency_add_column_foreign_key_app/migrations/0001_initial.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_column_foreign_key_app/migrations/0002_relatedtesttable_test_model.py
class Migration (line 5) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_column_foreign_key_app/models.py
class TestTable (line 4) | class TestTable(models.Model):
class RelatedTestTable (line 9) | class RelatedTestTable(models.Model):
FILE: tests/apps/idempotency_add_column_one_to_one_app/migrations/0001_initial.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_column_one_to_one_app/migrations/0002_relatedtesttable_test_model.py
class Migration (line 5) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_column_one_to_one_app/models.py
class TestTable (line 4) | class TestTable(models.Model):
class RelatedTestTable (line 9) | class RelatedTestTable(models.Model):
FILE: tests/apps/idempotency_add_foreign_key_app/migrations/0001_initial.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_foreign_key_app/migrations/0002_alter_relatedtesttable_test_field_int.py
class Migration (line 5) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_foreign_key_app/models.py
class TestTable (line 4) | class TestTable(models.Model):
class RelatedTestTable (line 9) | class RelatedTestTable(models.Model):
FILE: tests/apps/idempotency_add_index_app/migrations/0001_initial.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_index_app/migrations/0002_alter_relatedtesttable_test_field_int.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_index_app/models.py
class TestTable (line 4) | class TestTable(models.Model):
class RelatedTestTable (line 9) | class RelatedTestTable(models.Model):
FILE: tests/apps/idempotency_add_index_meta_app/migrations/0001_initial.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_index_meta_app/migrations/0002_relatedtesttable_relatedtesttable_idx.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_index_meta_app/models.py
class TestTable (line 4) | class TestTable(models.Model):
class RelatedTestTable (line 9) | class RelatedTestTable(models.Model):
class Meta (line 13) | class Meta:
FILE: tests/apps/idempotency_add_one_to_one_app/migrations/0001_initial.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_one_to_one_app/migrations/0002_alter_relatedtesttable_test_field_int.py
class Migration (line 5) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_one_to_one_app/models.py
class TestTable (line 4) | class TestTable(models.Model):
class RelatedTestTable (line 9) | class RelatedTestTable(models.Model):
FILE: tests/apps/idempotency_add_primary_key_app/migrations/0001_initial.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_primary_key_app/migrations/0002_remove_relatedtesttable_id_and_more.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_primary_key_app/models.py
class TestTable (line 4) | class TestTable(models.Model):
class RelatedTestTable (line 9) | class RelatedTestTable(models.Model):
FILE: tests/apps/idempotency_add_unique_app/migrations/0001_initial.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_unique_app/migrations/0002_alter_relatedtesttable_test_field_int.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_unique_app/models.py
class TestTable (line 4) | class TestTable(models.Model):
class RelatedTestTable (line 9) | class RelatedTestTable(models.Model):
FILE: tests/apps/idempotency_add_unique_meta_app/migrations/0001_initial.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_unique_meta_app/migrations/0002_relatedtesttable_relatedtesttable_uniq.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_add_unique_meta_app/models.py
class TestTable (line 4) | class TestTable(models.Model):
class RelatedTestTable (line 9) | class RelatedTestTable(models.Model):
class Meta (line 13) | class Meta:
FILE: tests/apps/idempotency_create_table_app/migrations/0001_initial.py
function insert_objects (line 4) | def insert_objects(apps, schema_editor):
class Migration (line 10) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_create_table_app/migrations/0002_relatedtesttable_and_more.py
class Migration (line 7) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_create_table_app/models.py
class TestTable (line 4) | class TestTable(models.Model):
class RelatedTestTable (line 9) | class RelatedTestTable(models.Model):
class Meta (line 13) | class Meta:
FILE: tests/apps/idempotency_set_not_null_app/migrations/0001_initial.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_set_not_null_app/migrations/0002_alter_relatedtesttable_test_field_int.py
class Migration (line 4) | class Migration(migrations.Migration):
FILE: tests/apps/idempotency_set_not_null_app/models.py
class TestTable (line 4) | class TestTable(models.Model):
class RelatedTestTable (line 9) | class RelatedTestTable(models.Model):
FILE: tests/apps/old_notnull_check_constraint_migration_app/migrations/0001_initial.py
function insert_objects (line 6) | def insert_objects(apps, schema_editor):
class Migration (line 12) | class Migration(migrations.Migration):
FILE: tests/apps/old_notnull_check_constraint_migration_app/models.py
class TestTable (line 4) | class TestTable(models.Model):
FILE: tests/integration/__init__.py
function one_line_sql (line 11) | def one_line_sql(sql: str) -> str:
function split_sql_queries (line 15) | def split_sql_queries(sql: str) -> List[str]:
function pg_dump (line 19) | def pg_dump(table: str) -> str:
function super_user_cursor (line 32) | def super_user_cursor():
function make_index_invalid (line 50) | def make_index_invalid(table: str, index: str):
function is_valid_index (line 61) | def is_valid_index(table: str, index: str) -> bool:
function is_valid_constraint (line 75) | def is_valid_constraint(table: str, constraint: str) -> bool:
FILE: tests/integration/test_migrations.py
function test_sqlmigrate_with_idempotent_mode (line 26) | def test_sqlmigrate_with_idempotent_mode():
function test_good_flow_alter_table_with_same_db_table (line 36) | def test_good_flow_alter_table_with_same_db_table():
function test_good_flow (line 47) | def test_good_flow():
function test_good_flow_create_and_drop_index_concurrently (line 58) | def test_good_flow_create_and_drop_index_concurrently():
function test_bad_rollback_flow_drop_column_with_notnull (line 70) | def test_bad_rollback_flow_drop_column_with_notnull():
function test_bad_rollback_flow_drop_column_with_notnull_default (line 83) | def test_bad_rollback_flow_drop_column_with_notnull_default():
function test_bad_rollback_flow_change_char_type_that_safe (line 96) | def test_bad_rollback_flow_change_char_type_that_safe():
function test_bad_flow_add_column_with_default (line 109) | def test_bad_flow_add_column_with_default():
function test_bad_flow_add_column_with_notnull_default (line 119) | def test_bad_flow_add_column_with_notnull_default():
function test_bad_flow_add_column_with_notnull (line 129) | def test_bad_flow_add_column_with_notnull():
function test_bad_flow_change_char_type_that_unsafe (line 139) | def test_bad_flow_change_char_type_that_unsafe():
function test_decimal_to_float_app (line 148) | def test_decimal_to_float_app():
function test_good_flow_drop_table_with_constraints (line 160) | def test_good_flow_drop_table_with_constraints():
function test_good_flow_drop_column_with_constraints (line 197) | def test_good_flow_drop_column_with_constraints():
function test_good_flow_drop_column_with_constraints_old (line 359) | def test_good_flow_drop_column_with_constraints_old():
function test_idempotency_create_table (line 490) | def test_idempotency_create_table():
function test_idempotency_add_column (line 664) | def test_idempotency_add_column():
function test_idempotency_add_column_foreign_key (line 717) | def test_idempotency_add_column_foreign_key():
function test_idempotency_add_column_one_to_one (line 859) | def test_idempotency_add_column_one_to_one():
function test_idempotency_set_not_null (line 1017) | def test_idempotency_set_not_null():
function test_idempotency_add_check (line 1114) | def test_idempotency_add_check():
function test_idempotency_add_foreign_key (line 1181) | def test_idempotency_add_foreign_key():
function test_idempotency_add_one_to_one (line 1300) | def test_idempotency_add_one_to_one():
function test_idempotency_add_index (line 1449) | def test_idempotency_add_index():
function test_idempotency_add_index_meta (line 1524) | def test_idempotency_add_index_meta():
function test_idempotency_add_unique (line 1599) | def test_idempotency_add_unique():
function test_idempotency_add_unique_meta (line 1701) | def test_idempotency_add_unique_meta():
function test_idempotency_add_primary_key (line 1791) | def test_idempotency_add_primary_key():
function test_idempotency_add_auto_field (line 1999) | def test_idempotency_add_auto_field():
function test_idempotency_add_auto_field_old (line 2097) | def test_idempotency_add_auto_field_old():
FILE: tests/unit/test_schema.py
function timeouts (line 41) | def timeouts(statements):
function flexible_statement_timeout (line 47) | def flexible_statement_timeout(statements):
class Model (line 53) | class Model(models.Model):
class Model2 (line 58) | class Model2(models.Model):
class cmp_schema_editor (line 65) | class cmp_schema_editor:
method __enter__ (line 69) | def __enter__(self):
method __exit__ (line 74) | def __exit__(self, exc_type, exc_value, traceback):
method __getattr__ (line 78) | def __getattr__(self, item):
method __call__ (line 85) | def __call__(self, *args, **kwargs):
method django_sql (line 90) | def django_sql(self):
function zero_timeouts (line 95) | def zero_timeouts():
function cursor (line 102) | def cursor(mocker):
function test_create_model__ok (line 110) | def test_create_model__ok():
function test_drop_model__ok (line 123) | def test_drop_model__ok():
function test_drop_model__drop_foreign_key__ok (line 134) | def test_drop_model__drop_foreign_key__ok(cursor, mocker):
function test_drop_model__drop_foreign_key_backref__ok (line 154) | def test_drop_model__drop_foreign_key_backref__ok(cursor, mocker):
function test_rename_model__warning (line 173) | def test_rename_model__warning():
function test_rename_model__raise (line 185) | def test_rename_model__raise():
function test_rename_model_with_same_db_table__ok (line 196) | def test_rename_model_with_same_db_table__ok():
function test_change_model_tablespace__warning (line 204) | def test_change_model_tablespace__warning():
function test_change_model_tablespace__raise (line 216) | def test_change_model_tablespace__raise():
function test_change_model_comment__ok (line 228) | def test_change_model_comment__ok():
function test_add_field__ok (line 237) | def test_add_field__ok():
function test_add_field_with_code_default_null__ok (line 250) | def test_add_field_with_code_default_null__ok():
function test_add_field_with_code_default_not_null__warning (line 267) | def test_add_field_with_code_default_not_null__warning():
function test_add_field_with_code_default_not_null__raise (line 286) | def test_add_field_with_code_default_not_null__raise():
function test_add_field_with_code_default_not_null__keep_default__ok (line 302) | def test_add_field_with_code_default_not_null__keep_default__ok():
function test_add_field_with_code_default_not_null__keep_default__raise (line 320) | def test_add_field_with_code_default_not_null__keep_default__raise():
function test_add_field_with_db_default_null__ok (line 335) | def test_add_field_with_db_default_null__ok():
function test_add_field_with_db_default_not_null__ok (line 350) | def test_add_field_with_db_default_not_null__ok():
function test_add_field_with_code_default_db_default_not_null__ok (line 365) | def test_add_field_with_code_default_db_default_not_null__ok():
function test_add_field_with_not_null__warning (line 378) | def test_add_field_with_not_null__warning():
function test_add_field_with_not_null__with_flexible_timeout__warning (line 392) | def test_add_field_with_not_null__with_flexible_timeout__warning():
function test_add_field_with_not_null__raise (line 406) | def test_add_field_with_not_null__raise():
function test_add_field_with_foreign_key__ok (line 419) | def test_add_field_with_foreign_key__ok():
function test_add_field_with_foreign_key__with_flexible_timeout__ok (line 446) | def test_add_field_with_foreign_key__with_flexible_timeout__ok():
function test_add_field_with_primary_key__ok (line 472) | def test_add_field_with_primary_key__ok():
function test_add_field_with_primary_key__with_flexible_timeout__ok (line 496) | def test_add_field_with_primary_key__with_flexible_timeout__ok():
function test_add_field_with_unique__ok (line 519) | def test_add_field_with_unique__ok():
function test_add_field_with_unique__with_flexible_timeout__ok (line 544) | def test_add_field_with_unique__with_flexible_timeout__ok():
function test_alter_field_type_integer_to_integer_identity__ok (line 568) | def test_alter_field_type_integer_to_integer_identity__ok():
function test_alter_field_type_integer_identity_to_integer__ok (line 590) | def test_alter_field_type_integer_identity_to_integer__ok():
function test_alter_field_type_integer_to_bigint_identity__warning (line 622) | def test_alter_field_type_integer_to_bigint_identity__warning():
function test_alter_field_type_integer_to_bigint_identity__raise (line 645) | def test_alter_field_type_integer_to_bigint_identity__raise():
function test_alter_field_type_integer_identity_to_bigint__warning (line 672) | def test_alter_field_type_integer_identity_to_bigint__warning(mocker):
function test_alter_field_type_integer_identity_to_bigint__raise (line 703) | def test_alter_field_type_integer_identity_to_bigint__raise(mocker):
function test_alter_field_type_integer_identity_to_bigint_identity__warning (line 732) | def test_alter_field_type_integer_identity_to_bigint_identity__warning(m...
function test_alter_field_type_integer_identity_to_bigint_identity__raise (line 760) | def test_alter_field_type_integer_identity_to_bigint_identity__raise(moc...
function test_alter_field_type_varchar40_to_varchar20__warning (line 792) | def test_alter_field_type_varchar40_to_varchar20__warning():
function test_alter_field_type_varchar40_to_varchar20_error (line 808) | def test_alter_field_type_varchar40_to_varchar20_error():
function test_alter_field_type_varchar40_to_varchar80__ok (line 823) | def test_alter_field_type_varchar40_to_varchar80__ok():
function test_alter_field_type_varchar40_to_text__ok (line 838) | def test_alter_field_type_varchar40_to_text__ok():
function test_alter_field_type_decimal10_2_to_decimal5_2__warning (line 852) | def test_alter_field_type_decimal10_2_to_decimal5_2__warning():
function test_alter_field_type_decimal10_2_to_decimal5_2__raise (line 868) | def test_alter_field_type_decimal10_2_to_decimal5_2__raise():
function test_alter_field_type_decimal10_2_to_decimal20_2__ok (line 883) | def test_alter_field_type_decimal10_2_to_decimal20_2__ok():
function test_alter_field_type_decimal10_2_to_decimal10_3__warning (line 897) | def test_alter_field_type_decimal10_2_to_decimal10_3__warning():
function test_alter_field_type_decimal10_2_to_decimal10_3__raise (line 913) | def test_alter_field_type_decimal10_2_to_decimal10_3__raise():
function test_alter_field_type_decimal10_2_to_decimal10_1__warning (line 927) | def test_alter_field_type_decimal10_2_to_decimal10_1__warning():
function test_alter_field_type_decimal10_2_to_decimal10_1__raise (line 943) | def test_alter_field_type_decimal10_2_to_decimal10_1__raise():
function test_alter_field_set_not_null__ok (line 958) | def test_alter_field_set_not_null__ok():
function test_alter_field_set_not_null__with_flexible_timeout__ok (line 983) | def test_alter_field_set_not_null__with_flexible_timeout__ok():
function test_alter_filed_drop_not_null__ok (line 1007) | def test_alter_filed_drop_not_null__ok(cursor, mocker):
function test_alter_field_set_code_default__ok (line 1024) | def test_alter_field_set_code_default__ok():
function test_alter_field_drop_code_default__ok (line 1038) | def test_alter_field_drop_code_default__ok():
function test_alter_field_set_db_default__ok (line 1053) | def test_alter_field_set_db_default__ok():
function test_alter_field_drop_db_default__ok (line 1071) | def test_alter_field_drop_db_default__ok():
function test_rename_field__warning (line 1087) | def test_rename_field__warning():
function test_rename_field__raise (line 1103) | def test_rename_field__raise():
function test_remove_field__ok (line 1118) | def test_remove_field__ok():
function test_remove_field_with_foreign_key__ok (line 1131) | def test_remove_field_with_foreign_key__ok(cursor, mocker):
function test_remove_field_with_foreign_key_backref__ok (line 1160) | def test_remove_field_with_foreign_key_backref__ok(cursor, mocker):
function test_remove_field_with_unique_constraint__ok (line 1189) | def test_remove_field_with_unique_constraint__ok(cursor, mocker):
function test_remove_field_with_index__ok (line 1218) | def test_remove_field_with_index__ok(cursor, mocker):
function test_remove_field_with_index__with_flexible_timeout__ok (line 1245) | def test_remove_field_with_index__with_flexible_timeout__ok(cursor, mock...
function test_alter_field_add_constraint_check__ok (line 1271) | def test_alter_field_add_constraint_check__ok():
function test_alter_field_add_constraint_check__with_flexible_timeout__ok (line 1292) | def test_alter_field_add_constraint_check__with_flexible_timeout__ok():
function test_alter_field_drop_constraint_check__ok (line 1312) | def test_alter_field_drop_constraint_check__ok(mocker):
function test_alter_filed_add_constraint_foreign_key__ok (line 1339) | def test_alter_filed_add_constraint_foreign_key__ok():
function test_alter_filed_add_constraint_foreign_key__with_flexible_timeout__ok (line 1364) | def test_alter_filed_add_constraint_foreign_key__with_flexible_timeout__...
function test_alter_field_drop_constraint_foreign_key__ok (line 1388) | def test_alter_field_drop_constraint_foreign_key__ok(mocker):
function test_alter_field_add_constraint_primary_key__ok (line 1416) | def test_alter_field_add_constraint_primary_key__ok(mocker):
function test_add_composite_primary_key_field__ok (line 1439) | def test_add_composite_primary_key_field__ok(mocker):
function test_alter_field_add_constraint_primary_key__with_flexible_timeout__ok (line 1460) | def test_alter_field_add_constraint_primary_key__with_flexible_timeout__...
function test_add_composite_primary_key_field__with_flexible_timeout__ok (line 1484) | def test_add_composite_primary_key_field__with_flexible_timeout__ok(mock...
function test_alter_field_drop_constraint_primary_key__ok (line 1504) | def test_alter_field_drop_constraint_primary_key__ok(mocker):
function test_alter_field_drop_composite_primary_key_field__ok (line 1537) | def test_alter_field_drop_composite_primary_key_field__ok(mocker):
function test_alter_field_add_constraint_unique__ok (line 1557) | def test_alter_field_add_constraint_unique__ok():
function test_alter_field_add_constraint_unique__with_flexible_timeout__ok (line 1582) | def test_alter_field_add_constraint_unique__with_flexible_timeout__ok():
function test_alter_field_drop_constraint_unique__ok (line 1606) | def test_alter_field_drop_constraint_unique__ok(mocker):
function test_add_index__ok (line 1638) | def test_add_index__ok():
function test_add_index__with_flexible_timeout__ok (line 1658) | def test_add_index__with_flexible_timeout__ok():
function test_remove_index__ok (line 1678) | def test_remove_index__ok(mocker):
function test_add_unique_together__ok (line 1709) | def test_add_unique_together__ok(mocker):
function test_add_unique_together__with_flexible_timeout__ok (line 1728) | def test_add_unique_together__with_flexible_timeout__ok(mocker):
function test_remove_unique_together__ok (line 1746) | def test_remove_unique_together__ok(mocker):
function test_add_index_together__ok (line 1769) | def test_add_index_together__ok(mocker):
function test_add_index_together__with_flexible_timeout__ok (line 1784) | def test_add_index_together__with_flexible_timeout__ok(mocker):
function test_remove_index_together__ok (line 1798) | def test_remove_index_together__ok(mocker):
function test_add_meta_check_constraint__ok (line 1825) | def test_add_meta_check_constraint__ok():
function test_add_meta_check_constraint__with_flexible_timeout__ok (line 1842) | def test_add_meta_check_constraint__with_flexible_timeout__ok():
function test_drop_meta_check_constraint__ok (line 1858) | def test_drop_meta_check_constraint__ok():
function test_add_meta_unique_constraint__ok (line 1871) | def test_add_meta_unique_constraint__ok():
function test_add_meta_unique_constraint__with_flexible_timeout__ok (line 1888) | def test_add_meta_unique_constraint__with_flexible_timeout__ok():
function test_add_meta_multicolumn_unique_constraint__ok (line 1904) | def test_add_meta_multicolumn_unique_constraint__ok():
function test_add_meta_conditional_unique_constraint__ok (line 1920) | def test_add_meta_conditional_unique_constraint__ok():
function test_add_meta_conditional_multicolumn_unique_constraint__ok (line 1934) | def test_add_meta_conditional_multicolumn_unique_constraint__ok():
function test_add_meta_unique_constraint_nulls_distinct_fields__ok (line 1951) | def test_add_meta_unique_constraint_nulls_distinct_fields__ok():
function test_add_meta_unique_constraint_nulls_not_distinct_fields__ok (line 1971) | def test_add_meta_unique_constraint_nulls_not_distinct_fields__ok():
function test_add_meta_unique_constraint_nulls_distinct_expression__ok (line 1991) | def test_add_meta_unique_constraint_nulls_distinct_expression__ok():
function test_add_meta_unique_constraint_nulls_not_distinct_expression__ok (line 2008) | def test_add_meta_unique_constraint_nulls_not_distinct_expression__ok():
function test_add_meta_unique_constraint_deferrable_deferred__ok (line 2024) | def test_add_meta_unique_constraint_deferrable_deferred__ok():
function test_add_meta_unique_constraint_deferrable_immediate__ok (line 2043) | def test_add_meta_unique_constraint_deferrable_immediate__ok():
function test_add_meta_unique_constraint_include__ok (line 2062) | def test_add_meta_unique_constraint_include__ok():
function test_add_meta_unique_constraint_opclasses__ok (line 2078) | def test_add_meta_unique_constraint_opclasses__ok():
function test_add_meta_unique_constraint_condition__ok (line 2094) | def test_add_meta_unique_constraint_condition__ok():
function test_drop_meta_unique_constraint__ok (line 2110) | def test_drop_meta_unique_constraint__ok():
function test_add_meta_exclusion_constraint__warning (line 2122) | def test_add_meta_exclusion_constraint__warning():
function test_add_meta_exclusion_constraint__raise (line 2134) | def test_add_meta_exclusion_constraint__raise():
function test_drop_meta_exclusion_constraint__ok (line 2145) | def test_drop_meta_exclusion_constraint__ok():
function test_add_meta_index__ok (line 2156) | def test_add_meta_index__ok():
function test_add_meta_index__with_flexible_timeout__ok (line 2171) | def test_add_meta_index__with_flexible_timeout__ok():
function test_add_meta_multicolumn_index__ok (line 2185) | def test_add_meta_multicolumn_index__ok():
function test_add_meta_conditional_index__ok (line 2199) | def test_add_meta_conditional_index__ok():
function test_add_meta_conditional_multicolumn_index__ok (line 2212) | def test_add_meta_conditional_multicolumn_index__ok():
function test_add_meta_index_concurrently__ok (line 2226) | def test_add_meta_index_concurrently__ok():
function test_add_meta_index_concurrently__with_flexible_timeout__ok (line 2239) | def test_add_meta_index_concurrently__with_flexible_timeout__ok():
function test_drop_meta_index__ok (line 2251) | def test_drop_meta_index__ok():
function test_drop_meta_index_concurrently__ok (line 2264) | def test_drop_meta_index_concurrently__ok():
function test_add_meta_brin_index__ok (line 2276) | def test_add_meta_brin_index__ok():
function test_add_meta_brin_index__with_flexible_timeout__ok (line 2290) | def test_add_meta_brin_index__with_flexible_timeout__ok():
function test_add_meta_btree_index__ok (line 2303) | def test_add_meta_btree_index__ok():
function test_add_meta_btree_index__with_flexible_timeout__ok (line 2317) | def test_add_meta_btree_index__with_flexible_timeout__ok():
function test_add_meta_gin_index__ok (line 2330) | def test_add_meta_gin_index__ok():
function test_add_meta_gin_index__with_flexible_timeout__ok (line 2344) | def test_add_meta_gin_index__with_flexible_timeout__ok():
function test_add_meta_gist_index__ok (line 2357) | def test_add_meta_gist_index__ok():
function test_add_meta_gist_index__with_flexible_timeout__ok (line 2371) | def test_add_meta_gist_index__with_flexible_timeout__ok():
function test_add_meta_hash_index__ok (line 2384) | def test_add_meta_hash_index__ok():
function test_add_meta_hash_index__with_flexible_timeout__ok (line 2398) | def test_add_meta_hash_index__with_flexible_timeout__ok():
function test_add_meta_spgist_index__ok (line 2411) | def test_add_meta_spgist_index__ok():
function test_add_meta_spgist_index__with_flexible_timeout__ok (line 2425) | def test_add_meta_spgist_index__with_flexible_timeout__ok():
Condensed preview — 257 files, each showing path, character count, and a content snippet. Download the .json file or copy for the full structured content (477K chars).
[
{
"path": ".github/FUNDING.yml",
"chars": 14,
"preview": "github: tbicr\n"
},
{
"path": ".github/ISSUE_TEMPLATE/bug_report.md",
"chars": 541,
"preview": "---\nname: Bug report\nabout: Create a report to help us improve\ntitle: ''\nlabels: ''\nassignees: ''\n\n---\n\n**Describe the b"
},
{
"path": ".github/workflows/check.yml",
"chars": 1797,
"preview": "name: Check\n\non: [push, pull_request]\n\njobs:\n build:\n runs-on: ubuntu-latest\n steps:\n - name: Checkout code\n"
},
{
"path": ".github/workflows/publish.yml",
"chars": 680,
"preview": "name: Build and Publish\n\non: workflow_dispatch\n\njobs:\n build-and-publish:\n name: build and publish package\n runs-"
},
{
"path": ".gitignore",
"chars": 1203,
"preview": "# Byte-compiled / optimized / DLL files\n__pycache__/\n*.py[cod]\n*$py.class\n\n# C extensions\n*.so\n\n# Distribution / packagi"
},
{
"path": ".pre-commit-config.yaml",
"chars": 135,
"preview": "- repo: https://github.com/pre-commit/mirrors-prettier\n rev: \"\" # Use the sha or tag you want to point at\n hooks:\n "
},
{
"path": "AUTHORS",
"chars": 54,
"preview": "maintainer: Paveł Tyślacki <pavel.tyslacki@gmail.com>\n"
},
{
"path": "CHANGES.md",
"chars": 7246,
"preview": "# django-pg-zero-downtime-migrations Changelog\n\n## 0.19\n- added django 5.2 support\n- parallelize CI to run one job per P"
},
{
"path": "Dockerfile",
"chars": 975,
"preview": "FROM --platform=linux/amd64 ubuntu:24.04\n\nENV LC_ALL=C.UTF-8\nENV LANG=C.UTF-8\nENV DEBIAN_FRONTEND=noninteractive\n\nRUN ap"
},
{
"path": "LICENSE",
"chars": 1071,
"preview": "MIT License\n\nCopyright (c) 2018 Paveł Tyślacki\n\nPermission is hereby granted, free of charge, to any person obtaining a "
},
{
"path": "MANIFEST.in",
"chars": 121,
"preview": "include README.md\ninclude CHANGES.md\ninclude AUTHORS\ninclude LICENSE\n\nglobal-exclude __pycache__\nglobal-exclude *.py[co]"
},
{
"path": "README.md",
"chars": 40051,
"preview": "[](https://pypi.org/project/django-pg-zero-"
},
{
"path": "django_zero_downtime_migrations/__init__.py",
"chars": 21,
"preview": "__version__ = \"0.19\"\n"
},
{
"path": "django_zero_downtime_migrations/backends/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "django_zero_downtime_migrations/backends/postgis/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "django_zero_downtime_migrations/backends/postgis/base.py",
"chars": 242,
"preview": "from django.contrib.gis.db.backends.postgis.base import (\n DatabaseWrapper as PostGISDatabaseWrapper\n)\n\nfrom .schema "
},
{
"path": "django_zero_downtime_migrations/backends/postgis/schema.py",
"chars": 269,
"preview": "from django.contrib.gis.db.backends.postgis.schema import PostGISSchemaEditor\n\nfrom django_zero_downtime_migrations.back"
},
{
"path": "django_zero_downtime_migrations/backends/postgres/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "django_zero_downtime_migrations/backends/postgres/base.py",
"chars": 235,
"preview": "from django.db.backends.postgresql.base import (\n DatabaseWrapper as PostgresDatabaseWrapper\n)\n\nfrom .schema import D"
},
{
"path": "django_zero_downtime_migrations/backends/postgres/schema.py",
"chars": 44230,
"preview": "import re\nimport warnings\nfrom contextlib import contextmanager\n\nimport django\nfrom django.conf import settings\nfrom dja"
},
{
"path": "docker-compose.yml",
"chars": 1993,
"preview": "services:\n pg17:\n image: postgres:17-alpine\n environment:\n POSTGRES_USER: root\n POSTGRES_PASSWORD: root"
},
{
"path": "docker_postgres_init.sql",
"chars": 48,
"preview": "CREATE USER test WITH PASSWORD 'test' CREATEDB;\n"
},
{
"path": "manage.py",
"chars": 641,
"preview": "#!/usr/bin/env python\n\"\"\"Django's command-line utility for administrative tasks.\"\"\"\nimport os\nimport sys\n\n\ndef main():\n "
},
{
"path": "setup.cfg",
"chars": 428,
"preview": "[flake8]\nmax-line-length = 120\nexclude = .tox/,venv/\n\n[isort]\ncombine_as_imports = true\nknown_django = django\nknown_firs"
},
{
"path": "setup.py",
"chars": 1995,
"preview": "from setuptools import find_packages, setup\n\nVERSION = __import__('django_zero_downtime_migrations').__version__\n\n\ndef _"
},
{
"path": "tests/__init__.py",
"chars": 304,
"preview": "from django.conf import settings\n\nimport pytest\n\nskip_for_default_django_backend = pytest.mark.skipif(\n settings.DATA"
},
{
"path": "tests/apps/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/bad_flow_add_column_with_default_app/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/bad_flow_add_column_with_default_app/migrations/0001_initial.py",
"chars": 427,
"preview": "# Generated by Django 3.1 on 2019-09-22 21:47\n\nfrom django.db import migrations, models\n\n\nclass Migration(migrations.Mig"
},
{
"path": "tests/apps/bad_flow_add_column_with_default_app/migrations/0002_add_field_default.py",
"chars": 401,
"preview": "# Generated by Django 3.1 on 2019-09-22 21:47\n\nfrom django.db import migrations, models\n\n\nclass Migration(migrations.Mig"
},
{
"path": "tests/apps/bad_flow_add_column_with_default_app/migrations/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/bad_flow_add_column_with_default_app/models.py",
"chars": 117,
"preview": "from django.db import models\n\n\nclass TestTable(models.Model):\n field = models.IntegerField(default=0, null=False)\n"
},
{
"path": "tests/apps/bad_flow_add_column_with_notnull_app/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/bad_flow_add_column_with_notnull_app/migrations/0001_initial.py",
"chars": 427,
"preview": "# Generated by Django 3.1 on 2019-09-22 21:45\n\nfrom django.db import migrations, models\n\n\nclass Migration(migrations.Mig"
},
{
"path": "tests/apps/bad_flow_add_column_with_notnull_app/migrations/0002_add_field_notnull.py",
"chars": 392,
"preview": "# Generated by Django 3.1 on 2019-09-22 21:46\n\nfrom django.db import migrations, models\n\n\nclass Migration(migrations.Mig"
},
{
"path": "tests/apps/bad_flow_add_column_with_notnull_app/migrations/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/bad_flow_add_column_with_notnull_app/models.py",
"chars": 96,
"preview": "from django.db import models\n\n\nclass TestTable(models.Model):\n field = models.IntegerField()\n"
},
{
"path": "tests/apps/bad_flow_add_column_with_notnull_default_app/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/bad_flow_add_column_with_notnull_default_app/migrations/0001_initial.py",
"chars": 427,
"preview": "# Generated by Django 3.1 on 2019-09-22 21:41\n\nfrom django.db import migrations, models\n\n\nclass Migration(migrations.Mig"
},
{
"path": "tests/apps/bad_flow_add_column_with_notnull_default_app/migrations/0002_add_field_notnull_default.py",
"chars": 409,
"preview": "# Generated by Django 3.1 on 2019-09-22 21:43\n\nfrom django.db import migrations, models\n\n\nclass Migration(migrations.Mig"
},
{
"path": "tests/apps/bad_flow_add_column_with_notnull_default_app/migrations/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/bad_flow_add_column_with_notnull_default_app/models.py",
"chars": 105,
"preview": "from django.db import models\n\n\nclass TestTable(models.Model):\n field = models.IntegerField(default=0)\n"
},
{
"path": "tests/apps/bad_flow_change_char_type_that_unsafe_app/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/bad_flow_change_char_type_that_unsafe_app/migrations/0001_initial.py",
"chars": 488,
"preview": "# Generated by Django 3.1 on 2019-09-22 21:37\n\nfrom django.db import migrations, models\n\n\nclass Migration(migrations.Mig"
},
{
"path": "tests/apps/bad_flow_change_char_type_that_unsafe_app/migrations/0002_change_type_from_char120_to_char100.py",
"chars": 410,
"preview": "# Generated by Django 3.1 on 2019-09-22 21:38\n\nfrom django.db import migrations, models\n\n\nclass Migration(migrations.Mig"
},
{
"path": "tests/apps/bad_flow_change_char_type_that_unsafe_app/migrations/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/bad_flow_change_char_type_that_unsafe_app/models.py",
"chars": 107,
"preview": "from django.db import models\n\n\nclass TestTable(models.Model):\n field = models.CharField(max_length=100)\n"
},
{
"path": "tests/apps/bad_rollback_flow_change_char_type_that_safe_app/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/bad_rollback_flow_change_char_type_that_safe_app/migrations/0001_initial.py",
"chars": 493,
"preview": "# Generated by Django 3.1 on 2019-09-22 21:26\n\nfrom django.db import migrations, models\n\n\nclass Migration(migrations.Mig"
},
{
"path": "tests/apps/bad_rollback_flow_change_char_type_that_safe_app/migrations/0002_change_type_safe_from_char100_to_char120.py",
"chars": 422,
"preview": "# Generated by Django 3.1 on 2019-09-22 21:27\n\nfrom django.db import migrations, models\n\n\nclass Migration(migrations.Mig"
},
{
"path": "tests/apps/bad_rollback_flow_change_char_type_that_safe_app/migrations/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/bad_rollback_flow_change_char_type_that_safe_app/models.py",
"chars": 112,
"preview": "from django.db import models\n\n\nclass TestTable(models.Model):\n char_filed = models.CharField(max_length=120)\n"
},
{
"path": "tests/apps/bad_rollback_flow_drop_column_with_notnull_app/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/bad_rollback_flow_drop_column_with_notnull_app/migrations/0001_initial.py",
"chars": 787,
"preview": "# Generated by Django 3.1 on 2019-09-22 21:00\n\nfrom django.db import migrations, models\n\n\ndef insert_objects(apps, schem"
},
{
"path": "tests/apps/bad_rollback_flow_drop_column_with_notnull_app/migrations/0002_drop_field_not_null.py",
"chars": 356,
"preview": "# Generated by Django 3.1 on 2019-09-22 21:02\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration):"
},
{
"path": "tests/apps/bad_rollback_flow_drop_column_with_notnull_app/migrations/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/bad_rollback_flow_drop_column_with_notnull_app/models.py",
"chars": 71,
"preview": "from django.db import models\n\n\nclass TestTable(models.Model):\n pass\n"
},
{
"path": "tests/apps/bad_rollback_flow_drop_column_with_notnull_default_app/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/bad_rollback_flow_drop_column_with_notnull_default_app/migrations/0001_initial.py",
"chars": 804,
"preview": "# Generated by Django 3.1 on 2019-09-22 21:19\n\nfrom django.db import migrations, models\n\n\ndef insert_objects(apps, schem"
},
{
"path": "tests/apps/bad_rollback_flow_drop_column_with_notnull_default_app/migrations/0002_drop_field_not_null_default.py",
"chars": 364,
"preview": "# Generated by Django 3.1 on 2019-09-22 21:20\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration):"
},
{
"path": "tests/apps/bad_rollback_flow_drop_column_with_notnull_default_app/migrations/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/bad_rollback_flow_drop_column_with_notnull_default_app/models.py",
"chars": 71,
"preview": "from django.db import models\n\n\nclass TestTable(models.Model):\n pass\n"
},
{
"path": "tests/apps/decimal_to_float_app/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/decimal_to_float_app/migrations/0001_initial.py",
"chars": 568,
"preview": "from django.db import migrations, models\n\n\nclass Migration(migrations.Migration):\n\n initial = True\n\n dependencies "
},
{
"path": "tests/apps/decimal_to_float_app/migrations/0002_type_conversion.py",
"chars": 361,
"preview": "from django.db import migrations, models\n\n\nclass Migration(migrations.Migration):\n\n dependencies = [\n ('decima"
},
{
"path": "tests/apps/decimal_to_float_app/migrations/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/decimal_to_float_app/models.py",
"chars": 157,
"preview": "from django.db import models\n\n\nclass Value(models.Model):\n amount = models.FloatField(\n null=True,\n def"
},
{
"path": "tests/apps/good_flow_alter_table_with_same_db_table/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/good_flow_alter_table_with_same_db_table/migrations/0001_initial.py",
"chars": 556,
"preview": "# Generated by Django 3.1 on 2021-12-30 13:37\n\nfrom django.db import migrations, models\n\n\nclass Migration(migrations.Mig"
},
{
"path": "tests/apps/good_flow_alter_table_with_same_db_table/migrations/0002_rename_model.py",
"chars": 363,
"preview": "# Generated by Django 3.1 on 2021-12-30 23:59\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration):"
},
{
"path": "tests/apps/good_flow_alter_table_with_same_db_table/migrations/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/good_flow_alter_table_with_same_db_table/models.py",
"chars": 118,
"preview": "from django.db import models\n\n\nclass TestTableRenamed(models.Model):\n\n class Meta:\n db_table = 'test_table'\n"
},
{
"path": "tests/apps/good_flow_app/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/good_flow_app/migrations/0001_initial.py",
"chars": 1198,
"preview": "# Generated by Django 3.1 on 2019-09-21 20:09\n\nimport django.contrib.postgres.search\nfrom django.db import migrations, m"
},
{
"path": "tests/apps/good_flow_app/migrations/0002_add_nullable_field.py",
"chars": 761,
"preview": "# Generated by Django 3.1 on 2019-09-21 20:15\n\nfrom django.db import migrations, models\n\n\ndef insert_objects_and_null_ch"
},
{
"path": "tests/apps/good_flow_app/migrations/0003_set_field_default.py",
"chars": 930,
"preview": "# Generated by Django 3.1 on 2019-09-21 20:16\n\nfrom django.db import migrations, models\n\n\ndef insert_objects_and_default"
},
{
"path": "tests/apps/good_flow_app/migrations/0004_set_field_not_null.py",
"chars": 1502,
"preview": "# Generated by Django 3.1 on 2019-09-21 20:16\n\nfrom django.db import IntegrityError, migrations, models\n\n\ndef flush_defe"
},
{
"path": "tests/apps/good_flow_app/migrations/0005_drop_field_not_null.py",
"chars": 930,
"preview": "# Generated by Django 3.1 on 2019-09-21 20:17\n\nfrom django.db import migrations, models\n\n\ndef insert_objects_and_default"
},
{
"path": "tests/apps/good_flow_app/migrations/0006_drop_field_default.py",
"chars": 775,
"preview": "# Generated by Django 3.1 on 2019-09-21 20:17\n\nfrom django.db import migrations, models\n\n\ndef insert_objects_and_null_ch"
},
{
"path": "tests/apps/good_flow_app/migrations/0007_drop_field.py",
"chars": 334,
"preview": "# Generated by Django 3.1 on 2019-09-21 20:18\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration):"
},
{
"path": "tests/apps/good_flow_app/migrations/0008_add_field_with_check_constraint.py",
"chars": 389,
"preview": "# Generated by Django 3.1 on 2019-09-22 20:39\n\nfrom django.db import migrations, models\n\n\nclass Migration(migrations.Mig"
},
{
"path": "tests/apps/good_flow_app/migrations/0009_drop_field_with_check_constraint.py",
"chars": 347,
"preview": "# Generated by Django 3.1 on 2019-09-22 20:39\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration):"
},
{
"path": "tests/apps/good_flow_app/migrations/0010_add_field_with_foreign_key.py",
"chars": 546,
"preview": "# Generated by Django 3.1 on 2019-09-22 20:42\n\nimport django.db.models.deletion\nfrom django.db import migrations, models"
},
{
"path": "tests/apps/good_flow_app/migrations/0011_drop_field_with_foreign_key.py",
"chars": 342,
"preview": "# Generated by Django 3.1 on 2019-09-22 20:42\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration):"
},
{
"path": "tests/apps/good_flow_app/migrations/0012_add_field_with_unique_constraint.py",
"chars": 411,
"preview": "# Generated by Django 3.1 on 2019-09-22 20:43\n\nfrom django.db import migrations, models\n\n\nclass Migration(migrations.Mig"
},
{
"path": "tests/apps/good_flow_app/migrations/0013_drop_field_with_unique_constraint.py",
"chars": 348,
"preview": "# Generated by Django 3.1 on 2019-09-22 20:43\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration):"
},
{
"path": "tests/apps/good_flow_app/migrations/0014_add_field_with_index.py",
"chars": 419,
"preview": "# Generated by Django 3.1 on 2019-09-22 20:44\n\nfrom django.db import migrations, models\n\n\nclass Migration(migrations.Mig"
},
{
"path": "tests/apps/good_flow_app/migrations/0015_drop_field_with_index.py",
"chars": 336,
"preview": "# Generated by Django 3.1 on 2019-09-22 20:44\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration):"
},
{
"path": "tests/apps/good_flow_app/migrations/0016_add_check_constraint.py",
"chars": 436,
"preview": "# Generated by Django 3.1 on 2019-09-22 20:49\n\nfrom django.db import migrations, models\n\n\nclass Migration(migrations.Mig"
},
{
"path": "tests/apps/good_flow_app/migrations/0017_drop_check_constraint.py",
"chars": 357,
"preview": "# Generated by Django 3.1 on 2019-09-22 20:49\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration):"
},
{
"path": "tests/apps/good_flow_app/migrations/0018_add_unique_constraint.py",
"chars": 426,
"preview": "# Generated by Django 3.1 on 2019-09-22 20:51\n\nfrom django.db import migrations, models\n\n\nclass Migration(migrations.Mig"
},
{
"path": "tests/apps/good_flow_app/migrations/0019_drop_unique_constraint.py",
"chars": 357,
"preview": "# Generated by Django 3.1 on 2019-09-22 20:51\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration):"
},
{
"path": "tests/apps/good_flow_app/migrations/0020_add_unique_constraint_with_condition.py",
"chars": 540,
"preview": "# Generated by Django 3.1 on 2019-09-22 20:52\n\nfrom django.db import migrations, models\n\n\nclass Migration(migrations.Mig"
},
{
"path": "tests/apps/good_flow_app/migrations/0021_drop_unique_constraint_with_condition.py",
"chars": 372,
"preview": "# Generated by Django 3.1 on 2019-09-22 20:52\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration):"
},
{
"path": "tests/apps/good_flow_app/migrations/0022_add_index.py",
"chars": 410,
"preview": "# Generated by Django 3.1 on 2019-09-22 20:53\n\nfrom django.db import migrations, models\n\n\nclass Migration(migrations.Mig"
},
{
"path": "tests/apps/good_flow_app/migrations/0023_drop_index.py",
"chars": 330,
"preview": "# Generated by Django 3.1 on 2019-09-22 20:53\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration):"
},
{
"path": "tests/apps/good_flow_app/migrations/0024_add_index_with_condition.py",
"chars": 496,
"preview": "# Generated by Django 3.1 on 2019-09-22 20:53\n\nfrom django.db import migrations, models\n\n\nclass Migration(migrations.Mig"
},
{
"path": "tests/apps/good_flow_app/migrations/0025_drop_index_with_condition.py",
"chars": 345,
"preview": "# Generated by Django 3.1 on 2019-09-22 20:54\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration):"
},
{
"path": "tests/apps/good_flow_app/migrations/0026_add_brin_index.py",
"chars": 460,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:38\n\nimport django.contrib.postgres.indexes\nfrom django.db import migrations"
},
{
"path": "tests/apps/good_flow_app/migrations/0027_drop_brin_index.py",
"chars": 337,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:38\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration"
},
{
"path": "tests/apps/good_flow_app/migrations/0028_add_brin_index_with_condition.py",
"chars": 571,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:39\n\nimport django.contrib.postgres.indexes\nfrom django.db import migrations"
},
{
"path": "tests/apps/good_flow_app/migrations/0029_drop_brin_index_with_condition.py",
"chars": 352,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:39\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration"
},
{
"path": "tests/apps/good_flow_app/migrations/0030_add_btree_index.py",
"chars": 466,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:45\n\nimport django.contrib.postgres.indexes\nfrom django.db import migrations"
},
{
"path": "tests/apps/good_flow_app/migrations/0031_drop_btree_index.py",
"chars": 338,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:46\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration"
},
{
"path": "tests/apps/good_flow_app/migrations/0032_add_btree_index_with_condition.py",
"chars": 573,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:46\n\nimport django.contrib.postgres.indexes\nfrom django.db import migrations"
},
{
"path": "tests/apps/good_flow_app/migrations/0033_drop_btree_index_with_condition.py",
"chars": 353,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:46\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration"
},
{
"path": "tests/apps/good_flow_app/migrations/0034_add_gin_index.py",
"chars": 465,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:46\n\nimport django.contrib.postgres.indexes\nfrom django.db import migrations"
},
{
"path": "tests/apps/good_flow_app/migrations/0035_drop_gin_index.py",
"chars": 336,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:47\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration"
},
{
"path": "tests/apps/good_flow_app/migrations/0036_add_gin_index_with_condition.py",
"chars": 569,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:47\n\nimport django.contrib.postgres.indexes\nfrom django.db import migrations"
},
{
"path": "tests/apps/good_flow_app/migrations/0037_drop_gin_index_with_condition.py",
"chars": 351,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:47\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration"
},
{
"path": "tests/apps/good_flow_app/migrations/0038_add_gist_index.py",
"chars": 464,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:47\n\nimport django.contrib.postgres.indexes\nfrom django.db import migrations"
},
{
"path": "tests/apps/good_flow_app/migrations/0039_drop_gist_index.py",
"chars": 337,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:47\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration"
},
{
"path": "tests/apps/good_flow_app/migrations/0040_add_gist_index_with_condition.py",
"chars": 571,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:47\n\nimport django.contrib.postgres.indexes\nfrom django.db import migrations"
},
{
"path": "tests/apps/good_flow_app/migrations/0041_drop_gist_index_with_condition.py",
"chars": 352,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:48\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration"
},
{
"path": "tests/apps/good_flow_app/migrations/0042_add_hash_index.py",
"chars": 465,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:48\n\nimport django.contrib.postgres.indexes\nfrom django.db import migrations"
},
{
"path": "tests/apps/good_flow_app/migrations/0043_drop_hash_index.py",
"chars": 337,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:48\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration"
},
{
"path": "tests/apps/good_flow_app/migrations/0044_add_hash_index_with_condition.py",
"chars": 571,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:48\n\nimport django.contrib.postgres.indexes\nfrom django.db import migrations"
},
{
"path": "tests/apps/good_flow_app/migrations/0045_drop_hash_index_with_condition.py",
"chars": 352,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:49\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration"
},
{
"path": "tests/apps/good_flow_app/migrations/0046_add_spgist_index.py",
"chars": 467,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:49\n\nimport django.contrib.postgres.indexes\nfrom django.db import migrations"
},
{
"path": "tests/apps/good_flow_app/migrations/0047_drop_spgist_index.py",
"chars": 339,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:49\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration"
},
{
"path": "tests/apps/good_flow_app/migrations/0048_add_spgist_index_with_condition.py",
"chars": 575,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:49\n\nimport django.contrib.postgres.indexes\nfrom django.db import migrations"
},
{
"path": "tests/apps/good_flow_app/migrations/0049_drop_spgist_index_with_condition.py",
"chars": 354,
"preview": "# Generated by Django 3.0a1 on 2019-10-14 19:49\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migration"
},
{
"path": "tests/apps/good_flow_app/migrations/0050_add_unique_constraint_deferrable.py",
"chars": 934,
"preview": "# Generated by Django 4.2.20 on 2025-03-16 16:58\n\nimport django.db.models.constraints\nfrom django.db import migrations, "
},
{
"path": "tests/apps/good_flow_app/migrations/0051_drop_unique_constraint_deferrable.py",
"chars": 515,
"preview": "# Generated by Django 4.2.20 on 2025-03-16 16:58\n\nfrom django.db import migrations\n\n\nclass Migration(migrations.Migratio"
},
{
"path": "tests/apps/good_flow_app/migrations/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/good_flow_app/models.py",
"chars": 309,
"preview": "from django.contrib.postgres.search import SearchVectorField\nfrom django.db import models\n\n\nclass TestTable(models.Model"
},
{
"path": "tests/apps/good_flow_app_concurrently/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/good_flow_app_concurrently/migrations/0001_initial.py",
"chars": 1211,
"preview": "# Generated by Django 3.1 on 2019-09-21 20:09\n\nimport django.contrib.postgres.search\nfrom django.db import migrations, m"
},
{
"path": "tests/apps/good_flow_app_concurrently/migrations/0002_auto_20191210_2147.py",
"chars": 502,
"preview": "# Generated by Django 3.0a1 on 2019-12-10 21:47\nfrom django.contrib.postgres.operations import AddIndexConcurrently\nfrom"
},
{
"path": "tests/apps/good_flow_app_concurrently/migrations/0003_auto_20191210_2148.py",
"chars": 464,
"preview": "# Generated by Django 3.0a1 on 2019-12-10 21:48\nfrom django.contrib.postgres.operations import RemoveIndexConcurrently\nf"
},
{
"path": "tests/apps/good_flow_app_concurrently/migrations/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/good_flow_app_concurrently/models.py",
"chars": 309,
"preview": "from django.contrib.postgres.search import SearchVectorField\nfrom django.db import models\n\n\nclass TestTable(models.Model"
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints/migrations/0001_initial.py",
"chars": 6528,
"preview": "import django.db.models.deletion\nimport django.db.models.functions.math\nfrom django.db import migrations, models\n\n\nclass"
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints/migrations/0002_remove_testtablemain_drop_col_u1_and_more.py",
"chars": 3104,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n dependencies = [\n (\"good_flow_drop"
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints/migrations/0003_remove_testtablemain_field_i7.py",
"chars": 397,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints/migrations/0004_remove_testtablemain_field_i6.py",
"chars": 385,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints/migrations/0005_remove_testtablemain_field_i5.py",
"chars": 385,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints/migrations/0006_remove_testtablemain_field_i4.py",
"chars": 385,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints/migrations/0007_remove_testtablemain_field_i3.py",
"chars": 385,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints/migrations/0008_remove_testtablemain_field_i2.py",
"chars": 385,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints/migrations/0009_remove_testtablemain_field_i1.py",
"chars": 385,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints/migrations/0010_remove_testtablemain_field_u7.py",
"chars": 385,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints/migrations/0011_remove_testtablemain_field_u6.py",
"chars": 385,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints/migrations/0012_remove_testtablemain_field_u5.py",
"chars": 385,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints/migrations/0013_remove_testtablemain_field_u4.py",
"chars": 385,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints/migrations/0014_remove_testtablemain_field_u3.py",
"chars": 385,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints/migrations/0015_remove_testtablemain_field_u2.py",
"chars": 385,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints/migrations/0016_remove_testtablemain_field_u1.py",
"chars": 385,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints/migrations/0017_remove_testtablemain_main_id.py",
"chars": 384,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints/migrations/0018_remove_testtablemain_parent.py",
"chars": 347,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints/migrations/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints/models.py",
"chars": 2615,
"preview": "from django.db import models\n\n# from django.db.models.functions import Abs\n\n\nclass TestTableParent(models.Model):\n\n c"
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints_old/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints_old/migrations/0001_initial.py",
"chars": 5328,
"preview": "import django.db.models.deletion\nimport django.db.models.functions.math\nfrom django.db import migrations, models\n\n\nclass"
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints_old/migrations/0002_remove_testtablemain_drop_col_u2_and_more.py",
"chars": 2499,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n dependencies = [\n (\"good_flow_drop"
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints_old/migrations/0003_remove_testtablemain_field_i7.py",
"chars": 401,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints_old/migrations/0004_remove_testtablemain_field_i6.py",
"chars": 389,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints_old/migrations/0005_remove_testtablemain_field_i5.py",
"chars": 389,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints_old/migrations/0006_remove_testtablemain_field_i4.py",
"chars": 389,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints_old/migrations/0007_remove_testtablemain_field_i3.py",
"chars": 389,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints_old/migrations/0008_remove_testtablemain_field_i2.py",
"chars": 389,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints_old/migrations/0009_remove_testtablemain_field_i1.py",
"chars": 389,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints_old/migrations/0010_remove_testtablemain_field_u7.py",
"chars": 389,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints_old/migrations/0011_remove_testtablemain_field_u5.py",
"chars": 389,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints_old/migrations/0012_remove_testtablemain_field_u2.py",
"chars": 389,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints_old/migrations/0013_remove_testtablemain_main_id.py",
"chars": 388,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints_old/migrations/0014_remove_testtablemain_parent.py",
"chars": 386,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints_old/migrations/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/good_flow_drop_column_with_constraints_old/models.py",
"chars": 2070,
"preview": "from django.db import models\n\n# from django.db.models.functions import Abs\n\n\nclass TestTableParent(models.Model):\n\n c"
},
{
"path": "tests/apps/good_flow_drop_table_with_constraints/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/good_flow_drop_table_with_constraints/migrations/0001_initial.py",
"chars": 2444,
"preview": "import django.db.models.deletion\nfrom django.db import migrations, models\n\n\nclass Migration(migrations.Migration):\n\n "
},
{
"path": "tests/apps/good_flow_drop_table_with_constraints/migrations/0002_remove_testtablechild_main.py",
"chars": 525,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n dependencies = [\n (\"good_flow_drop"
},
{
"path": "tests/apps/good_flow_drop_table_with_constraints/migrations/0003_delete_testtablemain.py",
"chars": 311,
"preview": "from django.db import migrations\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies = [\n "
},
{
"path": "tests/apps/good_flow_drop_table_with_constraints/migrations/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/good_flow_drop_table_with_constraints/models.py",
"chars": 595,
"preview": "from django.db import models\n\n\nclass TestTableParent(models.Model):\n\n class Meta:\n db_table = 'drop_tbl_test_t"
},
{
"path": "tests/apps/idempotency_add_auto_field_app/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/idempotency_add_auto_field_app/migrations/0001_initial.py",
"chars": 711,
"preview": "from django.db import migrations, models\n\n\nclass Migration(migrations.Migration):\n\n initial = True\n\n dependencies "
},
{
"path": "tests/apps/idempotency_add_auto_field_app/migrations/0002_alter_relatedtesttable_test_field_int.py",
"chars": 407,
"preview": "from django.db import migrations, models\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies "
},
{
"path": "tests/apps/idempotency_add_auto_field_app/migrations/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/idempotency_add_auto_field_app/models.py",
"chars": 254,
"preview": "from django.db import models\n\n\nclass TestTable(models.Model):\n test_field_int = models.IntegerField()\n test_field_"
},
{
"path": "tests/apps/idempotency_add_check_app/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/idempotency_add_check_app/migrations/0001_initial.py",
"chars": 1158,
"preview": "from django.db import migrations, models\n\n\nclass Migration(migrations.Migration):\n\n initial = True\n\n dependencies "
},
{
"path": "tests/apps/idempotency_add_check_app/migrations/0002_relatedtesttable_idempotency_add_check_app_relatedtesttable_check.py",
"chars": 493,
"preview": "from django.db import migrations, models\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies "
},
{
"path": "tests/apps/idempotency_add_check_app/migrations/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/idempotency_add_check_app/models.py",
"chars": 478,
"preview": "from django.db import models\n\n\nclass TestTable(models.Model):\n test_field_int = models.IntegerField()\n test_field_"
},
{
"path": "tests/apps/idempotency_add_column_app/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/idempotency_add_column_app/migrations/0001_initial.py",
"chars": 1158,
"preview": "from django.db import migrations, models\n\n\nclass Migration(migrations.Migration):\n\n initial = True\n\n dependencies "
},
{
"path": "tests/apps/idempotency_add_column_app/migrations/0002_relatedtesttable_test_field_str.py",
"chars": 392,
"preview": "from django.db import migrations, models\n\n\nclass Migration(migrations.Migration):\n\n atomic = False\n\n dependencies "
},
{
"path": "tests/apps/idempotency_add_column_app/migrations/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/idempotency_add_column_app/models.py",
"chars": 314,
"preview": "from django.db import models\n\n\nclass TestTable(models.Model):\n test_field_int = models.IntegerField()\n test_field_"
},
{
"path": "tests/apps/idempotency_add_column_foreign_key_app/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/idempotency_add_column_foreign_key_app/migrations/0001_initial.py",
"chars": 1158,
"preview": "from django.db import migrations, models\n\n\nclass Migration(migrations.Migration):\n\n initial = True\n\n dependencies "
},
{
"path": "tests/apps/idempotency_add_column_foreign_key_app/migrations/0002_relatedtesttable_test_model.py",
"chars": 582,
"preview": "import django.db.models.deletion\nfrom django.db import migrations, models\n\n\nclass Migration(migrations.Migration):\n\n "
},
{
"path": "tests/apps/idempotency_add_column_foreign_key_app/migrations/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/idempotency_add_column_foreign_key_app/models.py",
"chars": 333,
"preview": "from django.db import models\n\n\nclass TestTable(models.Model):\n test_field_int = models.IntegerField()\n test_field_"
},
{
"path": "tests/apps/idempotency_add_column_one_to_one_app/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/apps/idempotency_add_column_one_to_one_app/migrations/0001_initial.py",
"chars": 1158,
"preview": "from django.db import migrations, models\n\n\nclass Migration(migrations.Migration):\n\n initial = True\n\n dependencies "
},
{
"path": "tests/apps/idempotency_add_column_one_to_one_app/migrations/0002_relatedtesttable_test_model.py",
"chars": 582,
"preview": "import django.db.models.deletion\nfrom django.db import migrations, models\n\n\nclass Migration(migrations.Migration):\n a"
},
{
"path": "tests/apps/idempotency_add_column_one_to_one_app/migrations/__init__.py",
"chars": 0,
"preview": ""
}
]
// ... and 57 more files (download for full content)
About this extraction
This page contains the full source code of the tbicr/django-pg-zero-downtime-migrations GitHub repository, extracted and formatted as plain text for AI agents and large language models (LLMs). The extraction includes 257 files (424.2 KB), approximately 108.6k tokens, and a symbol index with 461 extracted functions, classes, methods, constants, and types. Use this with OpenClaw, Claude, ChatGPT, Cursor, Windsurf, or any other AI tool that accepts text input. You can copy the full output to your clipboard or download it as a .txt file.
Extracted by GitExtract — free GitHub repo to text converter for AI. Built by Nikandr Surkov.