QUERY PLAN
Finalize GroupAggregate (cost=4801.89..4802.73 rows=48 width=11)
Group Key: object_type
-> Sort (cost=4801.89..4802.01 rows=48 width=11)
Sort Key: object_type
-> Gather (cost=4795.27..4800.55 rows=48 width=11)
Workers Planned: 1
-> Partial HashAggregate (cost=3795.27..3795.75 rows=48 width=11)
Group Key: object_type
-> Parallel Seq Scan on tbl_unread_comments (cost=0.00..3788.74 rows=1306 width=3)
Filter: ((NOT is_read) AND (remind_user_id = 1001))