QUERY PLAN
HashAggregate (cost=375.62..378.26 rows=264 width=12)
Group Key: client_id
-> Seq Scan on tbl_cases (cost=0.00..373.56 rows=411 width=8)
Filter: (client_id = ANY ('{3354,399,2616,2538,146,1661,982,2166,1301,3330}'::integer[]))