-- Force the diskann index. Filtering is post-filter streaming (diskann has no prefilter
-- GUC): the ANN scan streams candidates and the tsvector predicate filters them. rescore is pinned
-- at its 1000 maximum, so the beam width is the only lever left -- that is what the sweep varies.
SET enable_seqscan=off; SET enable_bitmapscan=off; SET enable_sort=off; SET diskann.query_rescore=1000; SET diskann.query_search_list_size={{ pgvectorscale_search_list_size_10pct }}; SELECT _id, title FROM cohere_wiki
WHERE to_tsvector('english', text) @@ websearch_to_tsquery('english', current_setting('cohere.titles_10pct'))
ORDER BY emb <=> current_setting('cohere.qvec')::vector(1024)
LIMIT 10;