Utkarash Kumar Singh aeb9511967 docs: retarget upgrade caveats to 15.19/17.11 + add btree_gist reindex note (#49621)
## 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 -->
2026-08-27 16:33:57 +01:00
2026-08-24 10:06:36 -06:00
2025-06-17 11:08:46 +02:00
2026-06-30 14:03:40 +02:00
2024-01-10 13:34:41 +01:00
…

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