WebRoot/WEB-INF/classes/com/shop/mapper/OsProductDetailMapper.xml

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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.shop.dao.OsProductDetailMapper">
  <resultMap id="BaseResultMap" type="com.shop.po.OsProductDetail">
    <id column="product_detail_id" jdbcType="BIGINT" property="productDetailId" />
    <result column="product_id" jdbcType="BIGINT" property="productId" />
    <result column="create_time" jdbcType="TIMESTAMP" property="createTime" />
    <result column="update_time" jdbcType="TIMESTAMP" property="updateTime" />
  </resultMap>
  <resultMap extends="BaseResultMap" id="ResultMapWithBLOBs" type="com.shop.po.OsProductDetail">
    <result column="description" jdbcType="LONGVARCHAR" property="description" />
  </resultMap>
  <sql id="Base_Column_List">
    product_detail_id, product_id, create_time, update_time
  </sql>
  <sql id="Blob_Column_List">
    description
  </sql>
  <select id="selectByPrimaryKey" parameterType="java.lang.Long" resultMap="ResultMapWithBLOBs">
    select 
    <include refid="Base_Column_List" />
    ,
    <include refid="Blob_Column_List" />
    from os_product_detail
    where product_detail_id = #{productDetailId,jdbcType=BIGINT}
  </select>

  <select id="selectByProductId" parameterType="java.lang.Long" resultMap="ResultMapWithBLOBs">
    select
    <include refid="Base_Column_List" />
    ,
    <include refid="Blob_Column_List" />
    from os_product_detail
    where product_id = #{productId,jdbcType=BIGINT}
  </select>

  <delete id="deleteByPrimaryKey" parameterType="java.lang.Long">
    delete from os_product_detail
    where product_detail_id = #{productDetailId,jdbcType=BIGINT}
  </delete>
  <insert id="insert" parameterType="com.shop.po.OsProductDetail">
    insert into os_product_detail (product_detail_id, product_id, create_time, 
      update_time, description)
    values (#{productDetailId,jdbcType=BIGINT}, #{productId,jdbcType=BIGINT}, #{createTime,jdbcType=TIMESTAMP}, 
      #{updateTime,jdbcType=TIMESTAMP}, #{description,jdbcType=LONGVARCHAR})
  </insert>
  <insert id="insertSelective" parameterType="com.shop.po.OsProductDetail">
    insert into os_product_detail
    <trim prefix="(" suffix=")" suffixOverrides=",">
      <if test="productDetailId != null">
        product_detail_id,
      </if>
      <if test="productId != null">
        product_id,
      </if>
      <if test="createTime != null">
        create_time,
      </if>
      <if test="updateTime != null">
        update_time,