QUERY PLAN
Finalize GroupAggregate (cost=4322.67..4324.89 rows=19 width=10)
Group Key: object_type
-> Gather Merge (cost=4322.67..4324.62 rows=15 width=10)
Workers Planned: 1
-> Partial GroupAggregate (cost=3322.66..3322.92 rows=15 width=10)
Group Key: object_type
-> Sort (cost=3322.66..3322.70 rows=15 width=2)
Sort Key: object_type
-> Parallel Seq Scan on tbl_unread_comments (cost=0.00..3322.37 rows=15 width=2)
Filter: ((NOT is_read) AND (remind_user_id = 1000))