QUERY PLAN
Limit (cost=28.25..28.25 rows=1 width=384)
-> Sort (cost=28.25..28.25 rows=1 width=384)
Sort Key: s.created_at DESC
-> Group (cost=28.18..28.24 rows=1 width=384)
Group Key: s.id
-> Sort (cost=28.18..28.21 rows=10 width=364)
Sort Key: s.id
-> Hash Right Join (cost=17.67..28.02 rows=10 width=364)
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=17.65..17.65 rows=2 width=364)
-> Hash Right Join (cost=13.19..17.65 rows=2 width=364)
Hash Cond: (thrs.task_group_id = s.id)
-> Seq Scan on tbl_task_group_head_of_relationships thrs (cost=0.00..3.93 rows=193 width=4)
-> Hash (cost=13.18..13.18 rows=1 width=364)
-> Seq Scan on tbl_task_groups s (cost=0.00..13.18 rows=1 width=364)
Filter: (client_id = 93)