hangzhoumesParent/moduleService/howllowGlassModule/src/main/resources/mapper/HollowGlassRelationInfoMapper.xml
@@ -124,4 +124,9 @@
        from relation_length
        group by flow_card_id, layer, films_id, first_length, second_Length, thickness
    </select>
    <select id="queryLayerByFlowCardId" resultType="java.lang.Integer">
        select count(distinct layer)
        from hollow_glass_relation_info
        where flow_card_id = #{flowCardId}
    </select>
</mapper>