QUERY PLAN
Aggregate (cost=12.48..12.49 rows=1 width=8)
-> Limit (cost=12.34..12.37 rows=9 width=24)
-> Sort (cost=12.34..12.37 rows=9 width=24)
Sort Key: tbl_visit_object_histories.last_visit_at DESC
-> Seq Scan on tbl_visit_object_histories (cost=0.00..12.20 rows=9 width=24)
Filter: (user_id = 5250)