feat: Add pg_partman extension support - #1090
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Ports pg_partman 5.5.0 to PGlite as @electric-sql/pglite-pg_partman, following the pgmq package template. pg_partman's core is pure PL/pgSQL, so the WASM bundle is the upstream extension built SQL-only (NO_BGW=1, an officially supported upstream build mode): its background worker is just a scheduler that calls run_maintenance_proc(), and background workers cannot exist in single-process WASM. The embedding application decides when to call run_maintenance() instead. The vitest suite covers the core lifecycle: extension install, time and serial (id) partition creation, premake via run_maintenance(), and retention. **NOTE**: requires the pg_partman dist rule in postgres-pglite; the submodule pointer will be bumped here once that backend PR merges. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Signed-off-by: Gautham Chandra <gautham.chandra@biltcard.com>
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Summary
Ports pg_partman 5.5.0 to PGlite as
@electric-sql/pglite-pg_partman, following the pgmq package as a template.pg_partman's core is pure PL/pgSQL, so the WASM bundle is the upstream extension built SQL-only (NO_BGW=1, an officially supported upstream build mode): its background worker is just a scheduler that calls run_maintenance_proc(), and background workers cannot exist in single-process WASM. The embedding application decides when to call run_maintenance() instead.
Slight deviation from other packages:
Unlike other packages, I noticed that pg_partman tests their functionality utilizing
pgTAPand since pglite supportspgTAP, I decided to create 2 sets of tests:original tests that the pg_partman team themselves use. In the event there's something wrong with the backend
portion of this extension, the pgTAP tests hopefully should catch it. There's even a small script to help pull fresh
versions of these files directly from upstream so its not a manual process.