QUERY PLAN
GroupAggregate (cost=5354.41..5361.54 rows=1 width=12)
Group Key: uc.object_id
-> Nested Loop (cost=5354.41..5361.53 rows=1 width=4)
Join Filter: (uc.object_id = r.id)
-> Gather Merge (cost=5354.13..5354.31 rows=1 width=8)
Workers Planned: 1
-> Merge Join (cost=4354.12..4354.19 rows=1 width=8)
Merge Cond: (uc.object_id = rccr.approve_id)
-> Sort (cost=4215.16..4215.17 rows=2 width=4)
Sort Key: uc.object_id
-> Parallel Seq Scan on tbl_unread_comments uc (cost=0.00..4215.15 rows=2 width=4)
Filter: ((NOT is_read) AND ((object_type)::text = '37'::text) AND (remind_user_id = 5064))
-> Sort (cost=138.95..138.98 rows=11 width=4)
Sort Key: rccr.approve_id
-> Seq Scan on tbl_approve_carbon_copy_rels rccr (cost=0.00..138.76 rows=11 width=4)
Filter: (user_id = 5064)
-> Index Scan using tbl_approves_pkey on tbl_approves r (cost=0.28..7.21 rows=1 width=4)
Index Cond: (id = rccr.approve_id)
Filter: (status <> 0)