QUERY PLAN
Limit (cost=281.69..281.74 rows=20 width=154)
-> Sort (cost=281.69..281.75 rows=24 width=154)
Sort Key: c.created_at DESC
-> Nested Loop Left Join (cost=0.28..281.14 rows=24 width=154)
-> Seq Scan on tbl_contacts c (cost=0.00..150.05 rows=24 width=150)
Filter: ((client_id IS NOT NULL) AND (user_status = 3))
-> Index Scan using tbl_clients_pkey on tbl_clients client (cost=0.28..5.46 rows=1 width=8)
Index Cond: (id = c.client_id)