Optimize fulltext queries

[jsuchal]

pred indexom:

Limit  (cost=145.79..146.07 rows=1 width=560) (actual time=8206.233..8206.236 rows=1 loops=1)
  ->  Result  (cost=145.79..146.07 rows=1 width=560) (actual time=8206.231..8206.233 rows=1 loops=1)
        ->  Sort  (cost=145.79..145.79 rows=1 width=528) (actual time=8205.067..8205.068 rows=1 loops=1)
"              Sort Key: searchable_message_threads.last_message_delivered_at DESC, searchable_message_threads.message_thread_id DESC"
              Sort Method: quicksort  Memory: 25kB
              ->  Nested Loop  (cost=0.14..145.78 rows=1 width=528) (actual time=4310.646..8205.059 rows=1 loops=1)
                    ->  Seq Scan on searchable_message_threads searchable_message_threads_1  (cost=0.00..137.48 rows=1 width=8) (actual time=4310.628..8205.039 rows=1 loops=1)
"                          Filter: ((((to_tsvector('simple'::regconfig, COALESCE(title, ''::text)) || to_tsvector('simple'::regconfig, COALESCE(content, ''::text))) || to_tsvector('simple'::regconfig, COALESCE((note)::text, ''::text))) || to_tsvector('simple'::regconfig, COALESCE(tag_names, ''::text))) @@ '''nases'''::tsquery)"
                          Rows Removed by Filter: 123
                    ->  Index Scan using searchable_message_threads_pkey on searchable_message_threads  (cost=0.14..8.17 rows=1 width=516) (actual time=0.010..0.010 rows=1 loops=1)
                          Index Cond: (id = searchable_message_threads_1.id)
"                          Filter: ((tag_ids && '{1,2,3,4,5,6,8,9,10}'::integer[]) AND (last_message_delivered_at < '2023-12-06 14:03:04.794991'::timestamp without time zone) AND (tenant_id = 1) AND (box_id = 1))"
Planning Time: 0.457 ms
Execution Time: 8206.281 ms

po indexe:

Limit  (cost=29.33..29.61 rows=1 width=560) (actual time=1.206..1.209 rows=1 loops=1)
  ->  Result  (cost=29.33..29.61 rows=1 width=560) (actual time=1.205..1.207 rows=1 loops=1)
        ->  Sort  (cost=29.33..29.34 rows=1 width=528) (actual time=0.029..0.030 rows=1 loops=1)
"              Sort Key: searchable_message_threads.last_message_delivered_at DESC, searchable_message_threads.message_thread_id DESC"
              Sort Method: quicksort  Memory: 25kB
              ->  Nested Loop  (cost=16.15..29.32 rows=1 width=528) (actual time=0.022..0.023 rows=1 loops=1)
                    ->  Bitmap Heap Scan on searchable_message_threads searchable_message_threads_1  (cost=16.00..21.02 rows=1 width=8) (actual time=0.013..0.014 rows=1 loops=1)
"                          Recheck Cond: ((((to_tsvector('simple'::regconfig, COALESCE(title, ''::text)) || to_tsvector('simple'::regconfig, COALESCE(content, ''::text))) || to_tsvector('simple'::regconfig, COALESCE((note)::text, ''::text))) || to_tsvector('simple'::regconfig, COALESCE(tag_names, ''::text))) @@ '''nases'''::tsquery)"
                          Heap Blocks: exact=1
                          ->  Bitmap Index Scan on idx_searchable_message_threads_fulltext  (cost=0.00..16.00 rows=1 width=0) (actual time=0.010..0.011 rows=1 loops=1)
"                                Index Cond: ((((to_tsvector('simple'::regconfig, COALESCE(title, ''::text)) || to_tsvector('simple'::regconfig, COALESCE(content, ''::text))) || to_tsvector('simple'::regconfig, COALESCE((note)::text, ''::text))) || to_tsvector('simple'::regconfig, COALESCE(tag_names, ''::text))) @@ '''nases'''::tsquery)"
                    ->  Index Scan using idx_on_id_box_id_last_message_delivered_at_5a4090c55e on searchable_message_threads  (cost=0.14..8.17 rows=1 width=516) (actual time=0.006..0.006 rows=1 loops=1)
                          Index Cond: ((id = searchable_message_threads_1.id) AND (box_id = 1) AND (last_message_delivered_at < '2023-12-06 14:03:04.794991'::timestamp without time zone))
"                          Filter: ((tag_ids && '{1,2,3,4,5,6,8,9,10}'::integer[]) AND (tenant_id = 1))"
Planning Time: 0.498 ms
Execution Time: 1.244 ms