- a group index may end with the entity ID column (post_id, ...)
- flat-first rewrites the posts.ID tie-breaks once, in the sort's direction:
with a (column, post_id) index MySQL returns rows in order instead of
sorting the whole match. dev36 (1.3M listings), price range sorted by price:
850 ms filesort -> 2 ms. Ties are ordered by ID the same way as the column
(natively ID DESC); pagination stays stable, result sets are unchanged
- Verify: EntityRegistryIndexesTest, PostQueryRouterFoundRowsTest (ASC
tie-break, single tie-break), unit 704, integration 589, phpcs, stan;
dev36 with the HivePress indexes (PR-119)
- PR: PR-118
- register_group() accepts $args['indexes'] (name => ordered keys); indexes on
unknown keys are dropped. Kept outside the field definition, so schema
hashes are unchanged.
- Schema_Manager::ensure_group_indexes() adds missing cidx_* indexes to the
existing flat table in place; the applied definition is remembered in
tmdo_entity_indexes so later requests skip SHOW INDEX.
- Bench (1M listings, scenario 2): Entity p50 337 ms -> 278 ms with
(hp_verified, hp_price), on par with Hot (269 ms).
- Verify: core unit 656 / integration 459 green, phpcs clean
- PR: PR-027
wpdev