QUERY PLAN
Aggregate (cost=29.18..29.19 rows=1 width=8)
-> Sort (cost=27.80..28.03 rows=92 width=222)
Sort Key: s.created_at DESC
-> HashAggregate (cost=23.88..24.80 rows=92 width=222)
Group Key: s.id
-> Hash Right Join (cost=15.65..23.52 rows=145 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=15.20..15.20 rows=36 width=12)
-> Hash Join (cost=6.07..15.20 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=4.92..4.92 rows=92 width=20)
-> Seq Scan on tbl_task_groups s (cost=0.00..4.92 rows=92 width=20)