QUERY PLAN
Limit (cost=10.38..10.43 rows=20 width=250)
-> Sort (cost=10.38..10.44 rows=24 width=250)
Sort Key: system DESC, created_at, id
-> Seq Scan on tbl_auth_items (cost=0.00..9.82 rows=24 width=250)
Filter: (visible AND (type = 1))