QUERY PLAN
Nested Loop Left Join (cost=0.56..16.60 rows=1 width=68)
-> Index Scan using tbl_sales_contract_invoices_pkey on tbl_sales_contract_invoices i (cost=0.28..8.30 rows=1 width=68)
Index Cond: (id = 2321)
Filter: ((NOT is_cancel) AND (NOT is_draft))
-> Index Scan using tbl_sales_contracts_pkey on tbl_sales_contracts c (cost=0.28..8.29 rows=1 width=8)
Index Cond: (id = i.contract_id)