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…s-session SYNAPSE seed lookup FTS5 shadow tables are updated via trigger on entity upsert, but SQLite WAL mode buffers these writes. New connections opened after extraction see stale FTS5 indexes and find_entities_fuzzy returns 0 rows, causing SYNAPSE to produce seeds=0 for all cross-session queries. Fix: call PRAGMA wal_checkpoint(PASSIVE) in two places: - After entity+edge loops in extract_and_store (semantic/graph.rs) — primary fix - At graph store open after migrations (sqlite/mod.rs) — startup safety net Also adds GraphStore::checkpoint_wal() helper and two regression tests: one unit test for the helper, one integration test through extract_and_store using a file DB (tempfile) to reproduce the cross-session WAL visibility issue. Closes #2166
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Summary
find_entities_fuzzyreturns 0 rows, SYNAPSE producesseeds=0for all cross-session queries.PRAGMA wal_checkpoint(PASSIVE)inextract_and_store(primary fix) and at graph store startup (safety net).GraphStore::checkpoint_wal()helper method.extract_and_storeusing a file DB (tempfile) to reproduce the cross-session visibility issue.Test plan
cargo nextest run -p zeph-memory --lib— 794 tests pass including new regression testsextract_and_store_fts5_cross_session_visibilityexercises full production path: session A extracts entities, session B opens new pool, FTS5 query returns resultsseeds=N(non-zero)Closes #2166