| Limit (cost=106.35..106.38 rows=10 width=195) |
| -> Sort (cost=106.33..109.29 rows=1187 width=195) |
| Sort Key: s.created_at |
| -> HashAggregate (cost=62.87..74.74 rows=1187 width=195) |
| Group Key: s.id, u.id |
| -> Hash Left Join (cost=9.24..56.93 rows=1187 width=195) |
| Hash Cond: (s.head_of = u.id) |
| -> Seq Scan on tbl_tasks s (cost=0.00..44.49 rows=1187 width=191) |
| 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) |