QUERY PLAN
Aggregate (cost=139.16..139.17 rows=1 width=8)
-> Seq Scan on tbl_clients (cost=0.00..136.66 rows=998 width=4)
Filter: (sales_rep = ANY ('{1001,1004,1005,1013,5087,5295,5300,5311,5329,5332,5420,5448,5449}'::integer[]))