QUERY PLAN
Sort (cost=111.66..111.67 rows=1 width=105)
Sort Key: scpcrd.remind_date DESC
-> Nested Loop (cost=47.81..111.65 rows=1 width=105)
-> Seq Scan on tbl_sales_contract_payment_collection_remind_dates scpcrd (cost=0.00..19.70 rows=1 width=33)
Filter: (contract_id = 3843)
-> Group (cost=47.81..47.82 rows=1 width=1022)
Group Key: sc.id, (sum(tbl_sales_contract_payments.amount))
-> Sort (cost=47.81..47.81 rows=1 width=36)
Sort Key: (sum(tbl_sales_contract_payments.amount))
-> Nested Loop Left Join (cost=0.28..47.80 rows=1 width=36)
Join Filter: (tbl_sales_contract_payments.contract_id = sc.id)
-> Index Only Scan using tbl_sales_contracts_pkey on tbl_sales_contracts sc (cost=0.28..8.29 rows=1 width=4)
Index Cond: (id = 3843)
-> GroupAggregate (cost=0.00..39.48 rows=1 width=36)
Group Key: tbl_sales_contract_payments.contract_id
-> Seq Scan on tbl_sales_contract_payments (cost=0.00..39.46 rows=1 width=10)
Filter: (contract_id = 3843)
SubPlan 1
-> Aggregate (cost=22.05..22.06 rows=1 width=32)
-> Seq Scan on tbl_sales_contract_payment_collection_remind_dates scpcrdsub (cost=0.00..22.04 rows=1 width=6)
Filter: ((remind_date <= scpcrd.remind_date) AND (contract_id = scpcrd.contract_id))
SubPlan 2
-> Aggregate (cost=22.05..22.06 rows=1 width=32)
-> Seq Scan on tbl_sales_contract_payment_collection_remind_dates scpcrdsub_1 (cost=0.00..22.04 rows=1 width=6)
Filter: ((remind_date <= scpcrd.remind_date) AND (contract_id = scpcrd.contract_id))