QUERY PLAN
Aggregate (cost=112.89..112.90 rows=1 width=8)
-> Bitmap Heap Scan on tbl_clients (cost=20.12..111.92 rows=387 width=4)
Recheck Cond: (sales_rep = ANY ('{1004,1005,1013,5087}'::integer[]))
-> Bitmap Index Scan on tbl_clients_sales_rep_idx (cost=0.00..20.02 rows=387 width=0)
Index Cond: (sales_rep = ANY ('{1004,1005,1013,5087}'::integer[]))