QUERY PLAN
GroupAggregate (cost=428.16..428.18 rows=1 width=12)
Group Key: case_id
-> Sort (cost=428.16..428.17 rows=1 width=4)
Sort Key: case_id
-> Seq Scan on tbl_implement_records (cost=0.00..428.15 rows=1 width=4)
Filter: ((created_by = 1000) AND (case_id = ANY ('{9267,9266,9265,9264,9263,9259,9256,9255}'::integer[])))