QUERY PLAN
Sort (cost=23.23..23.24 rows=6 width=43)
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 Right Join (cost=5.21..23.15 rows=6 width=43)
Hash Cond: (u.id = c.user_id)
-> Seq Scan on tbl_users u (cost=0.00..16.44 rows=144 width=35)
-> Hash (cost=5.14..5.14 rows=6 width=12)
-> Seq Scan on tbl_task_group_head_of_relationships c (cost=0.00..5.14 rows=6 width=12)
Filter: (task_group_id = ANY ('{192,196,198,199,178}'::integer[]))