diff --git a/db/query.go b/db/query.go
index 6129e16..fb1c2de 100644
--- a/db/query.go
+++ b/db/query.go
@@ -557,8 +557,7 @@ func (that *HoTimeDB) Row(resl *sql.Rows) []Map {
 			return nil
 		}
 		for j := 0; j < colCount; j++ {
-			// 统一转小写，兼容DM8等返回大写列名的数据库驱动
-			colKey := strings.ToLower(strs[j])
+			colKey := strs[j]
 			val := a[j]
 			if val == nil {
 				lis[colKey] = nil