Joshi
f6ea637c29
- 使用ROW_NUMBER窗口函数替代子查询和JOIN操作 - 简化查询结构，提高执行效率 - 保留对coilIds的可选过滤条件 - 确保每个coilId只返回最新的记录
38 lines
1.5 KiB
XML
38 lines
1.5 KiB
XML
<?xml version="1.0" encoding="UTF-8" ?>
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<!DOCTYPE mapper
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PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
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"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
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<mapper namespace="com.klp.mapper.WmsDeliveryPlanCoilOperateMapper">
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<resultMap type="com.klp.domain.WmsDeliveryPlanCoilOperate" id="WmsDeliveryPlanCoilOperateResult">
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<result property="operateId" column="operate_id"/>
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<result property="planId" column="plan_id"/>
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<result property="coilId" column="coil_id"/>
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<result property="operateType" column="operate_type"/>
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<result property="createBy" column="create_by"/>
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<result property="createTime" column="create_time"/>
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<result property="remark" column="remark"/>
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<result property="delFlag" column="del_flag"/>
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<result property="updateBy" column="update_by"/>
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<result property="updateTime" column="update_time"/>
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</resultMap>
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<select id="getCoilOperate" resultMap="WmsDeliveryPlanCoilOperateResult">
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SELECT * FROM (
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SELECT
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t.*,
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ROW_NUMBER() OVER (PARTITION BY t.coil_id ORDER BY t.create_time DESC) AS rn
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FROM wms_delivery_plan_coil_operate t
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WHERE plan_id = #{planId}
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<if test="coilIds != null and coilIds.length > 0">
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AND coil_id IN
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<foreach collection="coilIds" item="coilId" open="(" separator="," close=")">
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#{coilId}
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</foreach>
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</if>
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) tmp
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WHERE tmp.rn = 1
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</select>
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</mapper>
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