wl
2023-01-04 aeea62d121a1a8fd4475da30f1ef8b44b4776c7b
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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.ycl.mapper.message.MessageColumnMapper">
 
<select id="selectAllColumn" resultType="com.ycl.vo.message.MessageColumnVO">
    SELECT
        t1.id,
        COUNT( t1.id ) AS notice_amount,
        t1.column_name,
        t1.update_time,
        t1.is_show,
        t1.description
    FROM
        ums_message_column t1
            LEFT JOIN ums_message t2 ON t1.id = t2.message_type
    GROUP BY
        t1.id
</select>
</mapper>