QUERY PLAN
Aggregate (cost=101.84..101.85 rows=1 width=8)
-> Sort (cost=101.82..101.83 rows=1 width=224)
Sort Key: s.end_at, s.created_at DESC
InitPlan 1 (returns $0)
-> Aggregate (cost=49.36..49.37 rows=1 width=32)
-> Seq Scan on tbl_tasks s_1 (cost=0.00..49.36 rows=1 width=13)
Filter: ((tree_path IS NOT NULL) AND (head_of = 1001) AND (status = '0'::smallint))
-> Group (cost=52.43..52.44 rows=1 width=224)
Group Key: s.id
-> Sort (cost=52.43..52.44 rows=1 width=18)
Sort Key: s.id
-> Seq Scan on tbl_tasks s (cost=0.00..52.42 rows=1 width=18)
Filter: ((parent_id IS NULL) AND (tree_path @> $0) AND (head_of = 1001) AND (status = '0'::smallint))