QUERY PLAN
Limit (cost=67.57..67.60 rows=10 width=388)
-> Sort (cost=67.57..67.61 rows=14 width=388)
Sort Key: s.created_at DESC
-> Group (cost=67.13..67.31 rows=14 width=388)
Group Key: s.id
-> Sort (cost=67.13..67.17 rows=14 width=364)
Sort Key: s.id
-> Hash Right Join (cost=57.08..66.87 rows=14 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=57.04..57.04 rows=3 width=364)
-> Hash Right Join (cost=49.93..57.04 rows=3 width=364)
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=49.92..49.92 rows=1 width=364)
-> Nested Loop Left Join (cost=17.19..49.92 rows=1 width=364)
Filter: ((lower((client.name)::text) ~~ '%弱%'::text) OR (client.pinyin_shortcut ~~ '%弱%'::text) OR (lower((s.title)::text) ~~ '%弱%'::text) OR (lower(s.description) ~~ '%弱%'::text))
-> Hash Join (cost=16.91..30.11 rows=6 width=364)
Hash Cond: (s.head_of = u.id)
-> Seq Scan on tbl_task_groups s (cost=0.00..12.94 rows=94 width=364)
-> Hash (cost=16.80..16.80 rows=9 width=4)
-> Seq Scan on tbl_users u (cost=0.00..16.80 rows=9 width=4)
Filter: (department_id = 9)
-> Index Scan using tbl_clients_pkey on tbl_clients client (cost=0.28..3.27 rows=1 width=59)
Index Cond: (id = s.client_id)
Filter: (NOT deleted)