"Gauri Kanekar" <meetgaurikanekar@xxxxxxxxx> writes: > I want the planner to ignore a specific index. > I am testing some query output. For that purpose i dont want the index. > I that possible to ignore a index by the planner. begin; drop index soandso; explain analyze ...; rollback; Note the DROP INDEX will acquire exclusive lock on the table, so this might not be the greatest thing to do in a production environment. In PG 8.2 and up there is a sneakier way to do it that won't acquire any more lock than the statement-under-test does: begin; update pg_index set indisvalid = false where indexrelid = 'soandso'::regclass; explain analyze ...; rollback; regards, tom lane