QUERY PLAN
Finalize GroupAggregate (cost=4784.74..4786.97 rows=20 width=11)
Group Key: object_type
-> Gather Merge (cost=4784.74..4786.69 rows=15 width=11)
Workers Planned: 1
-> Partial GroupAggregate (cost=3784.73..3785.00 rows=15 width=11)
Group Key: object_type
-> Sort (cost=3784.73..3784.77 rows=15 width=3)
Sort Key: object_type
-> Parallel Seq Scan on tbl_unread_comments (cost=0.00..3784.44 rows=15 width=3)
Filter: ((NOT is_read) AND (remind_user_id = 1000))