QUERY PLAN
GroupAggregate (cost=108.84..109.02 rows=10 width=12)
Group Key: case_id
-> Sort (cost=108.84..108.87 rows=10 width=4)
Sort Key: case_id
-> Seq Scan on tbl_pre_sales (cost=0.00..108.67 rows=10 width=4)
Filter: ((NOT is_draft) AND (case_id = ANY ('{9212,9210,9206,9200,9094,9059,8951,8874,8852,8767}'::integer[])))