QUERY PLAN
GroupAggregate (cost=533.60..533.62 rows=1 width=12)
Group Key: case_id
-> Sort (cost=533.60..533.60 rows=1 width=4)
Sort Key: case_id
-> Seq Scan on tbl_implement_records (cost=0.00..533.59 rows=1 width=4)
Filter: ((created_by = 1001) AND (case_id = ANY ('{9256,9255,9243,9226,9227,9225,9224,9221,9219,9223,9220,9218,9217,9215,9212,9213,9216,9214,9211,9210}'::integer[])))