Schema Changes

Strong MigrationsRuby

A Ruby gem that catches unsafe database migrations in development for PostgreSQL, MySQL, and MariaDB.

sqldefGo

Idempotent schema management tool for MySQL, PostgreSQL, SQLite, and SQL Server using plain SQL DDLs.

migraPython

A schema diff tool for PostgreSQL that automatically generates migration scripts between database states.

Online MigrationsRuby

A Ruby gem that catches unsafe PostgreSQL migrations in development and provides helpers to run them safely in production.

pg-oscRuby

A CLI tool for performing zero-downtime schema changes and backfills in PostgreSQL using a shadow table approach.

diesel-guardRust

Linter for dangerous Postgres migration patterns in Diesel and SQLx that prevents downtime from unsafe schema changes.