QUERY PLAN
Aggregate (cost=28.60..28.61 rows=1 width=8)
-> Sort (cost=27.33..27.54 rows=85 width=222)
Sort Key: s.created_at DESC
-> HashAggregate (cost=23.75..24.60 rows=85 width=222)
Group Key: s.id
-> Hash Right Join (cost=15.49..23.36 rows=157 width=12)
Hash Cond: (thrs.task_group_id = s.id)
-> Seq Scan on tbl_task_group_head_of_relationships thrs (cost=0.00..5.70 rows=370 width=4)
-> Hash (cost=15.04..15.04 rows=36 width=12)
-> Hash Join (cost=5.91..15.04 rows=36 width=12)
Hash Cond: (turs.task_group_id = s.id)
-> Seq Scan on tbl_task_group_user_relationships turs (cost=0.00..9.04 rows=36 width=4)
Filter: (user_id = 1001)
-> Hash (cost=4.85..4.85 rows=85 width=20)
-> Seq Scan on tbl_task_groups s (cost=0.00..4.85 rows=85 width=20)