添加分组字段

zs-manager/src/main/java/com/ruoyi/zhushi/service/impl/DkRecordServiceImpl.java

                 TimeUtils.getLastDayOfMonth(dkCheckInRecordDTO.getStrMonth()));
         }
         if(flag != null){
-            queryWrapper.groupBy(DkCheckInRecord::getSysUserName);
+            queryWrapper.select(DkCheckInRecord::getSysUserName, DkCheckInRecord::getSysUserId);
+            queryWrapper.groupBy(DkCheckInRecord::getSysUserName).groupBy(DkCheckInRecord::getSysUserId);
         }
 
         queryWrapper.orderByDesc(DkCheckInRecord::getSysUserName).orderByDesc(DkCheckInRecord::getCheckInTime);