QUERY PLAN
Limit (cost=23.65..23.65 rows=1 width=389)
-> Sort (cost=23.65..23.65 rows=1 width=389)
Sort Key: s.created_at DESC
-> HashAggregate (cost=23.62..23.64 rows=1 width=389)
Group Key: s.id
-> Hash Right Join (cost=11.91..23.57 rows=20 width=369)
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=11.86..11.86 rows=4 width=369)
-> Hash Right Join (cost=5.16..11.86 rows=4 width=369)
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=5.15..5.15 rows=1 width=369)
-> Seq Scan on tbl_task_groups s (cost=0.00..5.15 rows=1 width=369)
Filter: (project_id = 4177)