QUERY PLAN
Aggregate (cost=58.86..58.87 rows=1 width=8)
-> Sort (cost=57.48..57.71 rows=92 width=218)
Sort Key: s.created_at DESC
-> HashAggregate (cost=53.56..54.48 rows=92 width=218)
Group Key: s.id
-> Hash Right Join (cost=29.26..48.71 rows=1942 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=23.22..23.22 rows=483 width=12)
-> Hash Right Join (cost=14.07..23.22 rows=483 width=12)
Hash Cond: (turs.task_group_id = s.id)
-> Seq Scan on tbl_task_group_user_relationships turs (cost=0.00..7.83 rows=483 width=4)
-> Hash (cost=12.92..12.92 rows=92 width=20)
-> Seq Scan on tbl_task_groups s (cost=0.00..12.92 rows=92 width=20)