| GroupAggregate (cost=0.00..111.68 rows=1 width=12) |
| Group Key: remain_task.task_group_id |
| -> Nested Loop Anti Join (cost=0.00..111.66 rows=1 width=4) |
| Join Filter: (child_task.parent_id = remain_task.id) |
| -> Seq Scan on tbl_tasks remain_task (cost=0.00..51.06 rows=1 width=8) |
| Filter: ((status <> 1) AND (task_group_id = 191)) |
| -> Seq Scan on tbl_tasks child_task (cost=0.00..44.71 rows=1271 width=4) |