-- pg_turbovec v1.11.1 -- bench-results-only release.
--
-- This file is a *reference mirror*. The authoritative install
-- script is generated by `cargo pgrx schema`.
--
-- v1.11.1 ships ZERO source-code changes on top of v1.11.0. It
-- records the Phase A-2 IVF latency frontier measurement (isolated,
-- AVX2, contention-gated, on arnold) and the Phase B out-of-core
-- design:
--
--   benches/results/ivf_frontier_arnold_cohere-wiki_2026-06-16.json
--   docs/BENCHMARKS.md   -- "IVF latency frontier at scale" section
--    -- measured latency/storage rows
--     -- the >RAM design
--    -- the plan vs Qdrant/VectorChord
--
-- Honest headline (500k x 1024-d, AVX2, recall@10 ~= 0.96):
--   pgvector HNSW    7.9 ms   (latency winner)
--   pg_turbovec IVF 18.5 ms   (~2.3x slower, same order of magnitude)
--   pgvector ivfflat 117 ms   (we beat it ~6x)
--   pg_turbovec flat  41 ms   (exact)
-- IVF wins the >=0.99 recall tail (0.99 @ 25ms) and is 7.5x smaller
-- than HNSW. The 1M IVF BUILD OOMs on a 31 GiB host (Phase B-4,
-- out-of-core build, is the blocker for 1M+ IVF).
--
-- The wire format does NOT change (MetaPageData::version = 4,
-- identical to v1.11.0). No DDL, no on-disk migration, no REINDEX.
-- `ALTER EXTENSION pg_turbovec UPDATE TO '1.11.1';` resolves against
-- this intentionally-empty file.