QUERY PLAN
Aggregate (cost=1.06..1.07 rows=1 width=8)
-> Sort (cost=1.03..1.03 rows=2 width=578)
Sort Key: tbl_erp_wage_ins.is_delete, tbl_erp_wage_ins.sort
-> Seq Scan on tbl_erp_wage_ins (cost=0.00..1.02 rows=2 width=578)