QUERY PLAN
Finalize GroupAggregate (cost=4257.13..4257.56 rows=25 width=10)
Group Key: object_type
-> Sort (cost=4257.13..4257.19 rows=25 width=10)
Sort Key: object_type
-> Gather (cost=4253.80..4256.55 rows=25 width=10)
Workers Planned: 1
-> Partial HashAggregate (cost=3253.80..3254.05 rows=25 width=10)
Group Key: object_type
-> Parallel Seq Scan on tbl_unread_comments (cost=0.00..3248.68 rows=1024 width=2)
Filter: ((NOT is_read) AND (remind_user_id = 1001))