fix bug

pcloud-service-book/src/main/resources/mapper/group/BookGroupClassify.Mapper.xml

@@ -853,7 +853,7 @@
     <select id="pageClassify" parameterType="map" resultType="com.pcloud.book.group.vo.GroupStatisticVO">
         select bgc.id classifyId, bgc.classify classifyName, bgc.price price,sum(user_number) groupPersonCount, bgc.create_time createdTime
         from book_group_classify bgc left join book_group_qrcode bgq on bgc.id = bgq.classify_id
-        group by bgc.id
         where book_group_id = #{bookGroupId}
+        group by bgc.id
     </select>
 </mapper>
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