mybatis 传入List 并循环处理数据总和

<select id="getProjectInfoCount" resultType="java.lang.Integer" parameterType="java.util.List">
    select sum(one) from (
    <foreach  collection="list" item="tableName" separator="union all">
    select count(1) as one from ${tableName} where del_state = 1
    </foreach>
    ) copyTables
    </select>