QUERY PLAN
Finalize GroupAggregate (cost=4827.49..4828.31 rows=47 width=11)
Group Key: object_type
-> Sort (cost=4827.49..4827.61 rows=47 width=11)
Sort Key: object_type
-> Gather (cost=4821.02..4826.19 rows=47 width=11)
Workers Planned: 1
-> Partial HashAggregate (cost=3821.02..3821.49 rows=47 width=11)
Group Key: object_type
-> Parallel Seq Scan on tbl_unread_comments (cost=0.00..3814.74 rows=1256 width=3)
Filter: ((NOT is_read) AND (remind_user_id = 1001))