QUERY PLAN
Limit (cost=27.48..27.51 rows=10 width=393)
-> Sort (cost=27.48..27.71 rows=92 width=393)
Sort Key: s.created_at DESC
-> HashAggregate (cost=23.88..25.49 rows=92 width=393)
Group Key: s.id
-> Hash Right Join (cost=15.65..23.52 rows=145 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=15.20..15.20 rows=36 width=369)
-> Hash Join (cost=6.07..15.20 rows=36 width=369)
Hash Cond: (turs.task_group_id = s.id)
-> Seq Scan on tbl_task_group_user_relationships turs (cost=0.00..9.04 rows=36 width=4)
Filter: (user_id = 1001)
-> Hash (cost=4.92..4.92 rows=92 width=369)
-> Seq Scan on tbl_task_groups s (cost=0.00..4.92 rows=92 width=369)