QUERY PLAN
Aggregate (cost=39.15..39.16 rows=1 width=8)
-> Sort (cost=39.13..39.14 rows=1 width=120)
Sort Key: tbl_purchase_contract_payments.collected_date DESC, tbl_purchase_contract_payments.id DESC
-> Seq Scan on tbl_purchase_contract_payments (cost=0.00..39.12 rows=1 width=120)
Filter: (contract_id = 3848)