Arnau <arnaulist@xxxxxxxxxxxxxxxxxx> writes: > Seq Scan on agenda_users_groups (cost=0.00..53108.45 rows=339675 > width=8) (actual time=916.903..5763.830 rows=367026 loops=1) > Filter: (group_id = 9::numeric) > Total runtime: 7259.861 ms > (3 filas) > espsm_moviltelevision=# select count(*) from agenda_users_groups ; > count > --------- > 2547556 So the SELECT is fetching nearly 15% of the rows in the table. The planner is doing *the right thing* to use a seqscan, at least for this particular group_id value. regards, tom lane
