修改小课推送

src/main/resources/config/mybatis/RenewalsMapper.xml

@@ -69,6 +69,6 @@
 
 	<!-- 根据order_id获取小课信息 -->
 	<select id="getRenewalsByOrderId" resultMap="Renewals">
-		SELECT * FROM `renewals` WHERE order_id = #{orderId}
+		SELECT * FROM `renewals` WHERE order_id = #{orderId} limit 1
 	</select>
 </mapper>