QUERY PLAN
GroupAggregate (cost=106.65..106.67 rows=1 width=12)
Group Key: case_id
-> Sort (cost=106.65..106.65 rows=1 width=4)
Sort Key: case_id
-> Seq Scan on tbl_pre_sales (cost=0.00..106.64 rows=1 width=4)
Filter: ((created_by = 5064) AND (case_id = ANY ('{9262,9261,9260,9258,9256,9255,9250}'::integer[])))