PostgreSQL Schema Migrations with Schema Support

Postgres-schema-migrations is a JavaScript/TypeScript library for managing database schema changes in PostgreSQL. It is a fork of `postgres-migrations` that specifically adds support for schema namespaces, allowing separate migrations to be tracked per schema, which is beneficial for multi-tenant applications or reusing database code. Currently at version 7.0.2, this library is actively maintained. It mandates SQL files for migration definitions, ordered numerically, and deliberately omits 'down' migrations, advocating for 'rolling forward' with new migrations to reverse changes. A key differentiator is its emphasis on atomic transactions for each migration and hash-based checks to ensure migration immutability, preventing accidental changes to already-applied migrations. It supports Node.js 10.17.0+ and PostgreSQL 9.4+.