extension-development

To create a PostgreSQL extension, you need standardized patterns for C-language entry points, GUC definitions, .control files, and SQL install scripts. The skill provides authoritative guidance on managing the extension lifecycle and hook-chaining mechanisms to ensure compliance with PostgreSQL internal conventions.

Chaining hooks like ExecutorStart in PostgreSQL backend extensions requires precise patterns to maintain internal execution flow. The skill provides specific hook-chaining mechanisms for planner and executor hooks, ensuring proper integration with PostgreSQL's backend processing and preventing common execution errors.

Yes, PostgreSQL extension development supports both PGXS for out-of-tree extensions and meson for in-tree contrib modules. The skill simplifies the choice between these build system configurations, providing standardized patterns for both environments to ensure proper module compilation and loading.

Managing versioned upgrade paths for PostgreSQL loadable extensions involves creating SQL upgrade scripts that chain version transitions. The skill offers extension lifecycle management guidance, supporting the creation of control files and upgrade chains to maintain backward compatibility across extension versions.

PostgreSQL C extensions fail to load when they violate internal memory management and module loading requirements. The skill ensures compliance with PostgreSQL internal conventions by providing standardized patterns for C-language entry points and memory management, preventing common integration errors during extension development.