QUERY PLAN
Sort (cost=103.70..103.71 rows=1 width=200)
Sort Key: s.target_completed_at, s.created_at DESC
InitPlan 1 (returns $0)
-> Aggregate (cost=48.89..48.90 rows=1 width=32)
-> Seq Scan on tbl_tasks s_1 (cost=0.00..48.84 rows=20 width=13)
Filter: ((tree_path IS NOT NULL) AND (head_of = 1001) AND (status = '1'::smallint))
-> Group (cost=54.79..54.80 rows=1 width=200)
Group Key: s.id
-> Sort (cost=54.79..54.80 rows=1 width=200)
Sort Key: s.id
-> Seq Scan on tbl_tasks s (cost=0.00..54.78 rows=1 width=200)
Filter: ((tree_path @> $0) AND (head_of = 1001) AND (status = '1'::smallint) AND (parent_id = 1536))