QUERY PLAN
Update on tbl_clients (cost=4.31..18.46 rows=4 width=527)
-> Bitmap Heap Scan on tbl_clients (cost=4.31..18.46 rows=4 width=527)
Recheck Cond: (sales_rep = 1011)
-> Bitmap Index Scan on tbl_clients_sales_rep_idx (cost=0.00..4.31 rows=4 width=0)
Index Cond: (sales_rep = 1011)