diff --git a/common/tskv/src/main/java/com/thing/common/tskv/service/TsKvNativeSQL.java b/common/tskv/src/main/java/com/thing/common/tskv/service/TsKvNativeSQL.java
index b4ada46..66113d7 100644
--- a/common/tskv/src/main/java/com/thing/common/tskv/service/TsKvNativeSQL.java
+++ b/common/tskv/src/main/java/com/thing/common/tskv/service/TsKvNativeSQL.java
@@ -183,7 +183,7 @@ public class TsKvNativeSQL {
         } else {
             sql.append(TS_KV);
         }
-        sql.append(" WHERE ").append(THING_CODE).append(" = '").append(thingCode).append("' ").append("AND ").append(ATTR_KEY).append(" = '").append(attrKey).append("' ").append("AND ").append(TS).append(" >= ").append(stTs).append(" AND ").append(TS).append(" <= ").append(enTs).append(" GROUP BY ").append(THING_CODE).append(", ").append(ATTR_KEY).append(", ").append(" time ORDER BY time DESC;");
+        sql.append(" WHERE ").append(THING_CODE).append(" = '").append(thingCode).append("' ").append("AND ").append(ATTR_KEY).append(" = '").append(attrKey).append("' ").append("AND ").append(TS).append(" >= ").append(stTs).append(" AND ").append(TS).append(" < ").append(enTs).append(" GROUP BY ").append(THING_CODE).append(", ").append(ATTR_KEY).append(", ").append(" time ORDER BY time DESC;");
         return sql.toString();
     }