QUERY PLAN
GroupAggregate (cost=4811.37..4811.40 rows=2 width=12)
Group Key: uc.object_id
-> Sort (cost=4811.37..4811.37 rows=2 width=4)
Sort Key: uc.object_id
-> Nested Loop (cost=1124.09..4811.36 rows=2 width=4)
Join Filter: (uc.object_id = r.id)
-> Hash Join (cost=1123.81..4809.51 rows=2 width=8)
Hash Cond: (uc.object_id = rccr.approve_id)
-> Gather (cost=1000.00..4685.22 rows=46 width=4)
Workers Planned: 1
-> Parallel Seq Scan on tbl_unread_comments uc (cost=0.00..3680.62 rows=27 width=4)
Filter: ((NOT is_read) AND ((object_type)::text = '37'::text) AND (remind_user_id = 1011))
-> Hash (cost=114.66..114.66 rows=732 width=4)
-> Seq Scan on tbl_approve_carbon_copy_rels rccr (cost=0.00..114.66 rows=732 width=4)
Filter: (user_id = 1011)
-> Index Scan using tbl_approves_pkey on tbl_approves r (cost=0.28..0.91 rows=1 width=4)
Index Cond: (id = rccr.approve_id)
Filter: (status <> 0)