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Simple tool to evolve PostgreSQL schema easily.
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README.md

PyPI version Build Status

PGmigrate

PostgreSQL migrations made easy

Overview

PGmigrate is a database migration tool developed by Yandex.

PGmigrate has the following key-features:

  • Transactional and nontransactional migrations: you can enjoy whole power of PostgreSQL DDL
  • Callbacks: you can run some DDL on specific steps of migration process (e.g. drop some code before executing migrations, and create it back after migrations were applied)
  • Online migrations: you can execute series of transactional migrations and callbacks in a single transaction (so, if something goes wrong simple ROLLBACK will bring you in consistent state)

Install

pip install yandex-pgmigrate

Running tests

Tests require running PostgreSQL instance with superuser (to create/drop dbs). You could setup this yourself and use tox to start tests:

tox

Second option is to use docker and make:

make test

How to use

Complete manual is here.

Release history

  • 1.0.9 (2024-07-06)
    • Add an option to show only unapplied migrations in info
  • 1.0.8 (2024-03-08)
    • Allow reordering setting schema version and afterEach callback
  • 1.0.7 (2022-02-02)
    • Skip unnecessary schema creation on init
    • Add file path to statement apply error log
    • Add version gaps check
  • 1.0.6 (2020-10-29)
    • Make dsn manipulations more robust
    • Fix empty values-related bugs in config and args parsing
  • 1.0.5 (2020-02-29)
    • Use application_name instead of backend pid for conflict termination
  • 1.0.4 (2019-04-14)
    • Allow using subdirs in migrations folder
  • 1.0.3 (2017-12-28)
    • Fix migration error with comment at the end of file
    • Add blocking pids termination
    • Some minor fixes and improvements
  • 1.0.2 (2017-04-05)
    • Speed up get_info function a bit
    • Fix callbacks in transactional/nontransactional migrations mix on db init
  • 1.0.1 (2017-04-01)
    • Fix bug with python format patterns in migration text
    • Sort info command output by version
    • Support 'latest' target version
    • Add option to override user in migration meta
    • Fix info command fail without target on initialized database
    • Add session setup option
  • 1.0.0 (2016-10-03)
    • First opensource version

License

Distributed under the PostgreSQL license. See LICENSE for more information.