QUERY PLAN
GroupAggregate (cost=109.00..109.17 rows=10 width=12)
Group Key: case_id
-> Sort (cost=109.00..109.02 rows=10 width=4)
Sort Key: case_id
-> Seq Scan on tbl_pre_sales (cost=0.00..108.83 rows=10 width=4)
Filter: ((NOT is_draft) AND (case_id = ANY ('{9277,9276,9275,9274,9273,9272,9271,9270,9269,9268}'::integer[])))