QUERY PLAN
Aggregate (cost=169.25..169.26 rows=1 width=8)
-> Sort (cost=164.20..165.04 rows=337 width=2971)
Sort Key: c.created_at DESC
-> Seq Scan on tbl_contacts c (cost=0.00..150.05 rows=337 width=2971)
Filter: ((client_id IS NOT NULL) AND (user_status = 1))