sub select

src/main/resources/mapper/order/OrderCommentMapper.xml

@@ -131,4 +131,12 @@
     </select>
 
 
+    <!--result map子查询-->
+    <select id="queryListOrderCommentLabel" resultType="com.gogirl.domain.order.serve.OrderCommentLabel">
+        select t2.*
+        from order_comment t1
+                 left join order_comment_label t2 on find_in_set(t2.id, t1.label_sticker)
+        where t1.id = #{id}
+    </select>
+
 </mapper>