PostgreSQL Migrations' Test Process Before COMMIT

PostgreSQL enables testing after applying migrations but before committing changes, allowing verification of the migrated state. This process ensures that any potential issues can be identified and resolved before finalizing the migration, thus preventing partial failures and maintaining database integrity. The approach leverages PostgreSQL's transactional capabilities, ensuring that if any validation checks fail, the entire migration can be rolled back seamlessly, safeguarding against both syntactical and semantic errors.