QUERY PLAN
GroupAggregate (cost=298.40..299.34 rows=46 width=36)
Group Key: client_id
-> Sort (cost=298.40..298.52 rows=49 width=9)
Sort Key: client_id
-> Seq Scan on tbl_reimbursements (cost=0.00..297.02 rows=49 width=9)
Filter: ((status = ANY ('{3,2}'::integer[])) AND (client_id = ANY ('{3338,3333,2830,2705,1097,3273,104,1947,1853,3230}'::integer[])))