limit

coolstore-partner-dao/src/main/java/com/cool/store/dao/BigRegionDAO.java

@@ -71,6 +71,7 @@ public class BigRegionDAO {
         }
         Example example = new Example(BigRegionDO.class);
         example.createCriteria().andEqualTo("regionId", regionId);
+        example.setOrderByClause("limit 1");
         return bigRegionMapper.selectOneByExample(example);
     }
 

coolstore-partner-dao/src/main/resources/mapper/RegionMapper.xml

@@ -427,6 +427,7 @@
         where deleted = 0
         and parent_id = #{regionId}
         and region_type = #{regionType}
+        limit 1
     </select>
     <select id="getRegionByNameListAndIsPath" resultType="com.cool.store.entity.RegionDO">
         select <include refid="fields"/>