diff --git a/ruoyi-modules/hw-tdengine/src/main/resources/mapper/tdengine/TdEngineMapper.xml b/ruoyi-modules/hw-tdengine/src/main/resources/mapper/tdengine/TdEngineMapper.xml
index 834f9f9..f85667c 100644
--- a/ruoyi-modules/hw-tdengine/src/main/resources/mapper/tdengine/TdEngineMapper.xml
+++ b/ruoyi-modules/hw-tdengine/src/main/resources/mapper/tdengine/TdEngineMapper.xml
@@ -226,7 +226,7 @@
             resultType="java.util.Map">
         select
         <foreach item="item" collection="schemaFieldValues" separator=","
-                  index="">last(${item.fieldName})</foreach>
+                  index="">last(${item.fieldName})</foreach>,last(ts)
             from #{databaseName}.#{tableName}
     </select>