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@@ -1,55 +1,118 @@
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-<?xml version="1.0" encoding="UTF-8" ?>
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-<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
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-<mapper namespace="com.fs.hisStore.mapper.FsStoreProductUserEndCategoryMapper">
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-
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- <insert id="insertBatch">
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- insert into fs_store_product_user_end_category (product_id, user_end_category_id) values
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- <foreach collection="categoryIds" item="cid" separator=",">(#{productId}, #{cid})</foreach>
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- </insert>
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-
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- <delete id="deleteByProductId">
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- delete from fs_store_product_user_end_category where product_id = #{productId}
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- </delete>
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-
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- <select id="selectCategoryIdsByProductId" resultType="java.lang.Long">
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- select user_end_category_id from fs_store_product_user_end_category where product_id = #{productId}
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- </select>
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-
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- <delete id="deleteByCategoryIds">
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- delete from fs_store_product_user_end_category where user_end_category_id in
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- <foreach collection="categoryIds" item="id" open="(" separator="," close=")">#{id}</foreach>
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- </delete>
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-
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- <select id="selectDistinctProductIdsByCategoryId" resultType="java.lang.Long">
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- select distinct a.product_id from fs_store_product_user_end_category a left join fs_store_product_scrm c on a.product_id = c.product_id
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- where a.user_end_category_id = #{categoryId} and c.is_del = 0 and c.is_show = 1 and c.is_display = 1 and c.is_audit = 1
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- <if test="keyword != null and keyword != ''">
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- and c.product_name like CONCAT('%', #{keyword}, '%')
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- </if>
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- order by c.sort asc, c.create_time desc, a.product_id
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- </select>
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-
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- <select id="selectDistinctProductIds" resultType="java.lang.Long">
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- select distinct a.product_id from fs_store_product_user_end_category a left join fs_store_product_scrm c on a.product_id = c.product_id
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- where c.is_del = 0 and c.is_show = 1 and c.is_display = 1 and c.is_audit = 1
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- <if test="keyword != null and keyword != ''">
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- and c.product_name like CONCAT('%', #{keyword}, '%')
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- </if>
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- order by c.sort asc, c.create_time desc, a.product_id
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- </select>
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-
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- <!-- 按区域位置（1金刚区 2瀑布区）查询商品ID，支持 keyword、storeId -->
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- <select id="selectDistinctProductIdsByPosition" resultType="java.lang.Long">
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- select distinct a.product_id from fs_store_product_user_end_category a
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- left join fs_store_product_scrm c on a.product_id = c.product_id
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- left join fs_store_user_end_category_scrm uec on a.user_end_category_id = uec.id
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- where uec.status = 1 and uec.position = #{position}
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- and c.is_del = 0 and c.is_show = 1 and c.is_display = 1 and c.is_audit = 1
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- <if test="id != null and id != 0">and a.user_end_category_id = #{id}</if>
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- <if test="storeId != null">and uec.store_id = #{storeId}</if>
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- <if test="keyword != null and keyword != ''">
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- and c.product_name like CONCAT('%', #{keyword}, '%')
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- </if>
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- order by c.sort asc, c.create_time desc, a.product_id
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- </select>
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-</mapper>
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+<?xml version="1.0" encoding="UTF-8" ?>
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+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
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+<mapper namespace="com.fs.hisStore.mapper.FsStoreProductUserEndCategoryMapper">
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+
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+ <insert id="insertBatch">
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+ insert into fs_store_product_user_end_category (product_id, user_end_category_id, sort) values
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+ <foreach collection="categoryIds" item="cid" separator=",">(#{productId}, #{cid}, 0)</foreach>
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+ </insert>
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+
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+ <delete id="deleteByProductId">
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+ delete from fs_store_product_user_end_category where product_id = #{productId}
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+ </delete>
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+
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+ <select id="selectCategoryIdsByProductId" resultType="java.lang.Long">
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+ select user_end_category_id from fs_store_product_user_end_category where product_id = #{productId}
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+ </select>
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+
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+ <delete id="deleteByCategoryIds">
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+ delete from fs_store_product_user_end_category where user_end_category_id in
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+ <foreach collection="categoryIds" item="id" open="(" separator="," close=")">#{id}</foreach>
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+ </delete>
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+
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+ <!-- 排序使用关联表 a.sort；GROUP BY 避免同一商品多分类时 DISTINCT+ORDER BY 不稳定 -->
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+ <select id="selectDistinctProductIdsByCategoryId" resultType="java.lang.Long">
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+ select t.product_id from (
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+ select a.product_id,
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+ min(case when a.sort is null or a.sort = 0 then 1 else 0 end) as o1,
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+ max(case when a.sort is null or a.sort = 0 then 0 else a.sort end) as o2,
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+ max(c.create_time) as ct
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+ from fs_store_product_user_end_category a
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+ left join fs_store_product_scrm c on a.product_id = c.product_id
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+ where a.user_end_category_id = #{categoryId} and c.is_del = 0 and c.is_show = 1 and c.is_display = 1 and c.is_audit = 1
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+ <if test="keyword != null and keyword != ''">
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+ and c.product_name like CONCAT('%', #{keyword}, '%')
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+ </if>
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+ group by a.product_id
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+ ) t
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+ order by t.o1 asc, t.o2 desc, t.ct desc, t.product_id desc
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+ </select>
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+
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+ <select id="selectDistinctProductIds" resultType="java.lang.Long">
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+ select t.product_id from (
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+ select a.product_id,
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+ min(case when a.sort is null or a.sort = 0 then 1 else 0 end) as o1,
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+ max(case when a.sort is null or a.sort = 0 then 0 else a.sort end) as o2,
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+ max(c.create_time) as ct
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+ from fs_store_product_user_end_category a
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+ left join fs_store_product_scrm c on a.product_id = c.product_id
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+ where c.is_del = 0 and c.is_show = 1 and c.is_display = 1 and c.is_audit = 1
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+ <if test="keyword != null and keyword != ''">
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+ and c.product_name like CONCAT('%', #{keyword}, '%')
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+ </if>
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+ group by a.product_id
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+ ) t
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+ order by t.o1 asc, t.o2 desc, t.ct desc, t.product_id desc
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+ </select>
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+
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+ <!-- 按区域位置（1金刚区 2瀑布区）查询商品ID，支持 keyword、storeId；排序为关联表 a.sort -->
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+ <select id="selectDistinctProductIdsByPosition" resultType="java.lang.Long">
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+ select t.product_id from (
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+ select a.product_id,
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+ min(case when a.sort is null or a.sort = 0 then 1 else 0 end) as o1,
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+ max(case when a.sort is null or a.sort = 0 then 0 else a.sort end) as o2,
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+ max(c.create_time) as ct
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+ from fs_store_product_user_end_category a
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+ left join fs_store_product_scrm c on a.product_id = c.product_id
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+ left join fs_store_user_end_category_scrm uec on a.user_end_category_id = uec.id
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+ where uec.status = 1 and uec.position = #{position}
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+ and c.is_del = 0 and c.is_show = 1 and c.is_display = 1 and c.is_audit = 1
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+ <if test="id != null and id != 0">and a.user_end_category_id = #{id}</if>
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+ <if test="storeId != null">and uec.store_id = #{storeId}</if>
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+ <if test="keyword != null and keyword != ''">
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+ and c.product_name like CONCAT('%', #{keyword}, '%')
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+ </if>
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+ group by a.product_id
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+ ) t
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+ order by t.o1 asc, t.o2 desc, t.ct desc, t.product_id desc
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+ </select>
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+
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+ <update id="updateRelSortByCategoryAndProduct">
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+ update fs_store_product_user_end_category
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+ set sort = #{sort}
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+ where user_end_category_id = #{userEndCategoryId} and product_id = #{productId}
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+ </update>
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+
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+ <select id="selectSortByCategoryAndProductIds" resultType="com.fs.hisStore.domain.FsStoreProductUserEndCategory">
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+ select product_id, user_end_category_id, sort
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+ from fs_store_product_user_end_category
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+ where user_end_category_id = #{userEndCategoryId}
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+ and product_id in
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+ <foreach collection="productIds" item="pid" open="(" separator="," close=")">#{pid}</foreach>
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+ </select>
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+
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+ <select id="selectAggSortByPositionAndProductIds" resultType="com.fs.hisStore.domain.FsStoreProductUserEndCategory">
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+ select a.product_id,
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+ max(case when a.sort is null or a.sort = 0 then 0 else a.sort end) as sort
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+ from fs_store_product_user_end_category a
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+ left join fs_store_product_scrm c on a.product_id = c.product_id
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+ left join fs_store_user_end_category_scrm uec on a.user_end_category_id = uec.id
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+ where uec.status = 1 and uec.position = #{position}
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+ and c.is_del = 0 and c.is_show = 1 and c.is_display = 1 and c.is_audit = 1
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+ <if test="storeId != null">and uec.store_id = #{storeId}</if>
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+ and a.product_id in
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+ <foreach collection="productIds" item="pid" open="(" separator="," close=")">#{pid}</foreach>
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+ group by a.product_id
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+ </select>
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+
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+ <select id="selectAggSortGlobalAndProductIds" resultType="com.fs.hisStore.domain.FsStoreProductUserEndCategory">
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+ select a.product_id,
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+ max(case when a.sort is null or a.sort = 0 then 0 else a.sort end) as sort
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+ from fs_store_product_user_end_category a
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+ left join fs_store_product_scrm c on a.product_id = c.product_id
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+ where c.is_del = 0 and c.is_show = 1 and c.is_display = 1 and c.is_audit = 1
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+ and a.product_id in
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+ <foreach collection="productIds" item="pid" open="(" separator="," close=")">#{pid}</foreach>
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+ group by a.product_id
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+ </select>
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+</mapper>
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