QUERY PLAN
Aggregate (cost=1.14..1.15 rows=1 width=8)
-> Sort (cost=1.08..1.09 rows=4 width=39)
Sort Key: tbl_callback_questionnaires.is_delete, tbl_callback_questionnaires."order"
-> Seq Scan on tbl_callback_questionnaires (cost=0.00..1.04 rows=4 width=39)