修改课程count语句

exam-work-api/src/main/java/cn/com/qmth/examcloud/service/examwork/service/ExamCourseService.java

@@ -105,7 +105,7 @@ public class ExamCourseService {
         countSql.append(buildBaseSql());
         countSql.append(buildCriteriaSql(examCourseCriteria));
         countSql.append(buildGroupSql());
-        countSql.append(")");
+        countSql.append(")as tt");
         return countSql.toString();
     }