获取靶向作业对象

sstudy/src/main/resources/mapper/paperstudent/PaperGroupMapper.xml

         json_object('questionid',ptq2.questionid,'qn',ptq2.qn,'ptqorder',ptq2.ptqorder,'score',ptq2.ptqscore,'ctype',ptq.ctype
         ,'qstem',q2.qstem,'qoption',q2.qoption,'qanswer',q2.qanswer,'qanalyze',q2.qanalyze)),']')
         from t_paper_qtype_question ptq2 left join t_question q2 on ptq2.questionid = q2.questionid
-        where ptq2.questionpid=ptq.questionpid) else '' end)qstemtxt
+        where ptq2.questionpid=ptq.questionpid and ptq2.paperid=ptq.paperid) else '' end)qstemtxt
         ,(select concat('[',group_concat(json_object('pointid',qp.pointid,'pointname',p.pointname)),']')
         from t_question_point qp left join t_point p on qp.pointid = p.pointid
         where qp.questionid = ptq.questionpid)source