Mazen Tamer Salah f941db29d3 fix(search): batch FTS hit lookups into one query (N+1) (#3909) ...

_search_fts ran the FTS MATCH query, then looked up each hit's full row with its
own db.query(...).filter(id == message_id).first() inside a loop, so a search
returning N hits issued N extra SELECTs. Fetch all hit rows in a single IN(...)
query via _fetch_messages_by_id and reassemble results in hit (relevance) order.

Adds tests/test_session_search_batch_fetch.py asserting a single batched query
(and no query for empty input). Existing session-search tests stay green.

2026-06-11 16:31:54 +02:00

1.4 KiB

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