agent-dba

PostgreSQL Row-Level Security policies enforce data isolation by filtering rows based on organization_id boundaries and JWT claims. RLS operates at the database engine level, ensuring tenants only access their authorized data regardless of application query logic.

Optimizing slow PostgreSQL queries involves running EXPLAIN ANALYZE to inspect execution plans, identifying sequential scans, and implementing targeted index strategies. This methodical performance review reveals bottlenecks in complex data workloads for precise remediation.

PostgreSQL Row-Level Security policies enforce data isolation by filtering rows based on organization_id boundaries and JWT claims. RLS operates at the database engine level, ensuring tenants only access their authorized data regardless of application query logic.

PostgreSQL triggers and pg_cron support automated database maintenance routines by scheduling recurring tasks and executing functions on data events. This automation maintains data integrity and handles background operations without manual intervention.

Separating schema migrations from data migrations is necessary during zero-downtime changes to prevent locking tables during large data backfills. This separation ensures predictable performance and allows reversible deployments in multi-tenant environments.