QUERY PLAN
GroupAggregate (cost=129.73..130.08 rows=20 width=12)
Group Key: case_id
-> Sort (cost=129.73..129.78 rows=20 width=4)
Sort Key: case_id
-> Seq Scan on tbl_pre_sales (cost=0.00..129.30 rows=20 width=4)
Filter: ((NOT is_draft) AND (case_id = ANY ('{9249,9242,9240,9247,9246,9241,9239,9237,9238,9236,9234,9235,9231,9229,9232,9228,9225,9224,9221,9219}'::integer[])))