update README

RuoYi

2022-03-17 bc05b453df38542598c2624bd951ef7e6be4fb4f

 ruoyi-modules/ruoyi-gen/src/main/resources/mapper/generator/GenTableColumnMapper.xml

@@ -117,4 +117,11 @@
        </foreach>

    </delete>

    

    <delete id="deleteGenTableColumns">

        delete from gen_table_column where column_id in 
        <foreach collection="list" item="item" open="(" separator="," close=")">

            #{item.columnId}

        </foreach>

    </delete>



</mapper>