braintree/pg_ha_migrations

Catch unsafe PostgreSQL migrations in development and run them easier in production (code helpers for table/column renaming, changing column type, adding columns with default, background migrations, etc).

Catch unsafe migrations in development

Prevent Rails from auto-loading app/ code when running database migrations

PostgreSQL zero-downtime migrations made easy

Keep DB schema in sync across branches effortlessly. Install and use rails db:migrate as normal. The gem handles the rest automatically.

Django postgresql backend that apply migrations with respect to database locks

Automatic cleanup for the Rails db/structure.sql file (ActiveRecord/PostgreSQL)

An easy-to-use, zero-downtime schema migration tool for Postgres

Migrate data along with schema migrations in Rails and keep them up to date.