QUERY PLAN
Aggregate (cost=145.13..145.14 rows=1 width=8)
-> Nested Loop (cost=137.09..145.13 rows=1 width=0)
-> Group (cost=136.81..136.82 rows=1 width=4)
Group Key: r.id
-> Sort (cost=136.81..136.81 rows=1 width=4)
Sort Key: r.id
-> Nested Loop (cost=0.28..136.80 rows=1 width=4)
-> Seq Scan on tbl_reimbursement_settle_rels rsr (cost=0.00..125.29 rows=1 width=4)
Filter: (user_id = 1000)
-> Index Scan using tbl_reimbursements_pkey on tbl_reimbursements r (cost=0.28..8.30 rows=1 width=4)
Index Cond: (id = rsr.reimbursement_id)
Filter: (status = 2)
-> Index Only Scan using tbl_reimbursements_pkey on tbl_reimbursements (cost=0.28..8.30 rows=1 width=4)
Index Cond: (id = r.id)