QUERY PLAN
Sort (cost=38.84..39.28 rows=176 width=39)
Sort Key: u.pinyin1 NULLS FIRST, u.namecut1 NULLS FIRST, u.pinyin2 NULLS FIRST, u.namecut2 NULLS FIRST, u.pinyin3 NULLS FIRST, u.namecut3 NULLS FIRST, u.pinyin4 NULLS FIRST, u.namecut4 NULLS FIRST
-> Hash Left Join (cost=18.24..32.28 rows=176 width=39)
Hash Cond: (c.user_id = u.id)
-> Seq Scan on tbl_task_group_head_of_relationships c (cost=0.00..13.56 rows=176 width=8)
Filter: (task_group_id = ANY ('{203,200,199,198,197,196,192,178,106,90,88,87,85,83,79,78,74}'::integer[]))
-> Hash (cost=16.44..16.44 rows=144 width=35)
-> Seq Scan on tbl_users u (cost=0.00..16.44 rows=144 width=35)