On Tue, 2019-11-26 at 13:37 +0200, Dmytro Zhluktenko wrote: > Pgsql is unable to perform indexed full text search onto jsonb column > containing an array when looking for the first row in the table. > > Any ideas why this is happening? > > CREATE OR REPLACE FUNCTION cp.make_tsvector(in_t cp."Repro") > RETURNS tsvector > LANGUAGE plpgsql > IMMUTABLE > > [...] > > CREATE INDEX repro_fts_idx ON cp."Repro" USING gin > (cp.make_tsvector(cp."Repro".*)) WITH (fastupdate=off, > gin_pending_list_limit='64'); > > [...] > > -- explain analyze > SELECT * > FROM "cp"."Repro" x where cp.make_tsvector(x) @@ 'sup:*'::tsquery
One possibility is that there ar just too few rows in the table. SET enable_seqscan = off; and then try again. If that is not the problm, please provide EXPLAIN (ANALYZE, BUFFERS) output for the query. Yours, Laurenz Albe -- Cybertec | https://www.cybertec-postgresql.com
