diff --git a/example/mqtt-car/src/main/resources/mapper/CarInfoMapper.xml b/example/mqtt-car/src/main/resources/mapper/CarInfoMapper.xml
index 635265f..29a41e2 100644
--- a/example/mqtt-car/src/main/resources/mapper/CarInfoMapper.xml
+++ b/example/mqtt-car/src/main/resources/mapper/CarInfoMapper.xml
@@ -71,6 +71,7 @@
             <if test="sn != null "> and se.sequence = #{sn}</if>
             <if test="delFlag != null "> and ci.del_flag = #{delFlag}</if>
             <if test="sync != null "> and cpr.sync = #{sync}</if>
+            and se.flag = 0
             limit 10
         </where>
     </select>