bgworker-and-extensions

PostgreSQL background worker registration involves implementing a signal-safe main function and following postmaster lifecycle integration patterns. This ensures proper process registration, latch management, and non-blocking signal handling within the backend C environment.

Chaining PostgreSQL extension hooks like ProcessUtility_hook requires a canonical layering pattern to maintain compatibility with other extensions. Proper hook chaining intercepts query planning and execution phases without causing memory leaks or unstable database behavior.

Signal handling in a PostgreSQL background worker must be non-blocking and utilize proper latch usage. By following verified signal-safe coding standards, you can manage asynchronous tasks and background processes without encountering memory leaks or process instability.

Yes, you can intercept query planning by implementing and chaining the planner_hook. This allows your custom PostgreSQL extension to modify or monitor the query execution pipeline while maintaining compatibility with other installed extensions through correct hook architecture.

Memory leaks in PostgreSQL extensions often result from improper signal handling and incorrect background worker lifecycle management. Applying verified implementation patterns for latch usage and postmaster integration eliminates these common pitfalls and stabilizes the extension.