| Aggregate (cost=153.61..153.62 rows=1 width=8) |
| -> Sort (cost=135.75..138.73 rows=1191 width=228) |
| Sort Key: s.created_at |
| -> HashAggregate (cost=62.99..74.90 rows=1191 width=228) |
| Group Key: s.id, u.id |
| -> Hash Left Join (cost=9.24..57.04 rows=1191 width=16) |
| Hash Cond: (s.head_of = u.id) |
| -> Seq Scan on tbl_tasks s (cost=0.00..44.58 rows=1191 width=24) |
| Filter: (parent_id IS NULL) |
| -> Hash (cost=7.44..7.44 rows=144 width=4) |
| -> Seq Scan on tbl_users u (cost=0.00..7.44 rows=144 width=4) |