QUERY PLAN
Sort (cost=8.17..8.18 rows=1 width=35)
Sort Key: pinyin1 NULLS FIRST, namecut1 NULLS FIRST, pinyin2 NULLS FIRST, namecut2 NULLS FIRST, pinyin3 NULLS FIRST, namecut3 NULLS FIRST, pinyin4 NULLS FIRST, namecut4 NULLS FIRST
-> Index Scan using tbl_users_pkey on tbl_users u (cost=0.14..8.16 rows=1 width=35)
Index Cond: (id = 5043)