-- pg_turbovec v1.7.2 -- Phase Y: automated upgrade-matrix tests.
--
-- This file is a *reference mirror*. The authoritative install
-- script is generated by `cargo pgrx schema`.
--
-- v1.7.2 is a test-only patch release: it adds automated
-- end-to-end validation of the documented upgrade matrix.
-- Specifically, four new `#[pg_test]`s in `src/lib.rs` cover
--
--   1. Replay of every `migrations/*.sql` from v1.3.0 onward
--      against an already-1.7.x cluster (smoke for the
--      `ALTER EXTENSION` chain).
--   2. ambeginscan ERRORs on a forged v1 (Phase L preview)
--      meta page with a REINDEX HINT.
--   3. ambeginscan ERRORs on a forged v2 (Phase P, v1.3.x)
--      meta page with a REINDEX HINT.
--   4. The set of `migrations/*.sql` files matches the
--      documented release history.
--
-- The only source-code addition is the cfg-gated
-- `relfile::force_meta_version()` helper that tests #2 and #3
-- use to stamp arbitrary version values into block 0 without
-- having to keep v1.0..v1.3 binaries around.
--
-- The wire format does NOT change. The on-disk index format is
-- byte-identical across v1.6.0, v1.7.0, v1.7.1, and v1.7.2 (all
-- `MetaPageData::version = 3`). There is no DDL or on-disk
-- migration required, and no REINDEX is needed.
--
-- See docs/UPGRADING.md for the v1.7.1 -> v1.7.2 patch row
-- (no REINDEX needed). This migration file exists only so the
-- upgrade path `ALTER EXTENSION pg_turbovec UPDATE TO '1.7.2';`
-- resolves without an error. It is intentionally empty.