Development

Migrations without downtime

• Database Migrations Without Downtime
• A Dry-Run Harness for Agent Migrations in CI
• Database Migrations in the Deploy Pipeline: Order and Safety
• Writing a Rollback Plan for a Schema Change
• A Migration Log Table: Fields to Keep After the Run
• Backfilling a Column in Batches With a Stop Switch
• Index Changes Through a Migration Pipeline: Locks and Rollback
• Killing a Running Migration: What Postgres Actually Does
• Reading pg_locks to Prove a Migration Is Safe
• Scheduling Migrations Around Agent Traffic
• Splitting a Long Migration into Batches That Can Resume