QUERY PLAN
Finalize GroupAggregate (cost=4799.74..4800.58 rows=48 width=11)
Group Key: object_type
-> Sort (cost=4799.74..4799.86 rows=48 width=11)
Sort Key: object_type
-> Gather (cost=4793.12..4798.40 rows=48 width=11)
Workers Planned: 1
-> Partial HashAggregate (cost=3793.12..3793.60 rows=48 width=11)
Group Key: object_type
-> Parallel Seq Scan on tbl_unread_comments (cost=0.00..3786.59 rows=1306 width=3)
Filter: ((NOT is_read) AND (remind_user_id = 1001))