QUERY PLAN
Limit (cost=49.60..49.63 rows=10 width=428)
-> Sort (cost=49.60..49.82 rows=85 width=428)
Sort Key: s.created_at DESC
-> HashAggregate (cost=46.28..47.77 rows=85 width=428)
Group Key: s.id
-> Hash Right Join (cost=21.11..41.02 rows=2102 width=408)
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=15.08..15.08 rows=483 width=408)
-> Hash Right Join (cost=5.91..15.08 rows=483 width=408)
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=4.85..4.85 rows=85 width=408)
-> Seq Scan on tbl_task_groups s (cost=0.00..4.85 rows=85 width=408)