| GroupAggregate (cost=150.04..150.10 rows=3 width=12) |
| Group Key: parent_id |
| -> Sort (cost=150.04..150.05 rows=4 width=4) |
| Sort Key: parent_id |
| -> Seq Scan on tbl_tasks (cost=0.00..150.00 rows=4 width=4) |
| Filter: (parent_id = ANY ('{1618,1617,1616,1615}'::integer[])) |