rails/rails — pull request #8399 by joshsusser (2012-12-02 03:48:01+00:00)
Title: Add metadata to schema_migrations table

This change adds three metadata columns to the schema_migrations table. The name and migrated_at (timestamp) columns will aid in diagnosis of problems related to running migrations and schema changes. The fingerprint column is in preparation for a future change that will detect when migrations are changed after they have already been run.