-- pg_turbovec v1.5.0 -- Phase R-3: mmap-based reads of static regions.
--
-- This file is a *reference mirror*. The authoritative install
-- script is generated by `cargo pgrx schema`.
--
-- v1.5.0 changes how `ambeginscan` reads the deterministic
-- static regions of the relfile (persisted SIMD-blocked codes
-- + rotation matrix + inline codebook) from the buffer manager
-- to a per-backend `mmap(MAP_PRIVATE)` of the relation's
-- segment-0 file. The wire format does NOT change -- the v1.5.0
-- meta page is byte-identical to v1.4.x. There is no DDL or
-- on-disk migration required.
--
-- See docs/UPGRADING.md for the v1.4 -> v1.5 upgrade matrix
-- (no REINDEX needed) and docs/ARCHITECTURE.md
-- "Index AM * mmap isolation contract" for the consistency
-- argument and the recheck-orderby backstop.
--
-- This migration file exists only so the upgrade path
-- `ALTER EXTENSION pg_turbovec UPDATE TO '1.5.0';` resolves
-- without an error. It is intentionally empty: there are no
-- new SQL objects, no changed signatures, and no removed
-- objects in v1.5.0 vs v1.4.x.