QUERY PLAN
Finalize GroupAggregate (cost=4829.64..4830.46 rows=47 width=11)
Group Key: object_type
-> Sort (cost=4829.64..4829.76 rows=47 width=11)
Sort Key: object_type
-> Gather (cost=4823.16..4828.33 rows=47 width=11)
Workers Planned: 1
-> Partial HashAggregate (cost=3823.16..3823.63 rows=47 width=11)
Group Key: object_type
-> Parallel Seq Scan on tbl_unread_comments (cost=0.00..3816.88 rows=1256 width=3)
Filter: ((NOT is_read) AND (remind_user_id = 1001))