QUERY PLAN
Aggregate (cost=29.61..29.62 rows=1 width=8)
-> Sort (cost=28.33..28.54 rows=85 width=214)
Sort Key: s.created_at DESC
-> HashAggregate (cost=24.76..25.61 rows=85 width=214)
Group Key: s.id
-> Hash Right Join (cost=12.99..24.33 rows=170 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=12.62..12.62 rows=30 width=12)
-> Hash Join (cost=5.91..12.62 rows=30 width=12)
Hash Cond: (thrs.task_group_id = s.id)
-> Seq Scan on tbl_task_group_head_of_relationships thrs (cost=0.00..6.62 rows=30 width=4)
Filter: (user_id = 5064)
-> Hash (cost=4.85..4.85 rows=85 width=16)
-> Seq Scan on tbl_task_groups s (cost=0.00..4.85 rows=85 width=16)