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Utkarash Kumar Singh
aeb9511967
## I have read the [CONTRIBUTING.md](https://github.com/supabase/supabase/blob/master/CONTRIBUTING.md) file. YES ## What kind of change does this PR introduce? Docs update — Postgres upgrade guide for the 15.19 / 17.11 minor release. ## What is the current behavior? The upgrade guide's caveats are tagged for 15.18 / 17.10. ## What is the new behavior? - Retarget the ltree-reindex and custom-operator caveats: `15.18 or 17.10` → `15.19 or 17.11`. - Replace the ltree detection query with an operator-class-based one that also catches expression indexes and excludes `INCLUDE`d columns. - Add a `btree_gist` caveat: `float4`/`float8` gist indexes that may contain `NaN` need a `REINDEX` (upstream fixed NaN handling in 15.19/17.11). - Note the separate ltree >~14,653-label overflow case (encoding-independent). - Use schema-qualified names in `REINDEX INDEX CONCURRENTLY` and note it cannot run inside a transaction block. Detection queries validated on real 15.19 and 17.11. ## Additional context Refs: PSQL-1245. A pgcrypto (CVE-2026-14663) caveat is intentionally not included here. <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **Documentation** * Updated upgrade guidance for PostgreSQL 15.19 and 17.11. * Documented schema-qualified ltree index names and transaction-block restrictions for reindexing. * Improved the ltree overflow query to account for partial-index predicates when identifying values exceeding approximately 14,653 labels. * Added guidance for identifying and concurrently rebuilding affected `btree_gist` floating-point indexes containing `NaN` values. * Updated supported-version guidance for custom operator selectivity estimators. <!-- end of auto-generated comment: release notes by coderabbit.ai -->