QUERY PLAN
GroupAggregate (cost=1000.14..4404.06 rows=1 width=12)
Group Key: uc.object_id
-> Nested Loop (cost=1000.14..4404.05 rows=1 width=4)
Join Filter: (uc.object_id = rccr.punch_travel_id)
-> Nested Loop (cost=1000.14..4368.42 rows=1 width=8)
Join Filter: (uc.object_id = r.id)
-> Index Only Scan using tbl_punch_travels_pkey on tbl_punch_travels r (cost=0.14..12.59 rows=30 width=4)
-> Materialize (cost=1000.00..4354.05 rows=4 width=4)
-> Gather (cost=1000.00..4354.03 rows=4 width=4)
Workers Planned: 1
-> Parallel Seq Scan on tbl_unread_comments uc (cost=0.00..3353.63 rows=2 width=4)
Filter: ((NOT is_read) AND ((object_type)::text = '41'::text) AND (remind_user_id = 1001))
-> Seq Scan on tbl_punch_travel_carbon_copy_rels rccr (cost=0.00..35.50 rows=10 width=4)
Filter: (user_id = 1001)