There are 4 repositories under schema-changes topic.
Like diff but for PostgreSQL schemas
Idempotent schema management for MySQL, PostgreSQL, and more
Declarative pure-SQL schema management for MySQL and MariaDB
Easy CLI tool for making zero downtime schema changes and backfills in PostgreSQL
Elastic Search schema change management command line tool
Sane SEAD change control using Sqitch.
Liquibase Spring Annotation Example