<?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.qianwen.mdc.collect.mapper.iotdb.ProcessParamMapper">
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<resultMap id="BaseResultMap" type="com.qianwen.mdc.collect.entity.iotdb.ProcessParam">
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<result column="n" jdbcType="VARCHAR" property="n"/>
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<result column="v" jdbcType="VARCHAR" property="v"/>
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<result column="workstation_id" jdbcType="BIGINT" property="workstationId"/> <!-- -->
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</resultMap>
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<!-- n,v,workstation_id -->
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<select id="lastParamByWorstationId" resultType="com.qianwen.mdc.collect.entity.iotdb.ProcessParam">
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select n as n,v as v,workstation_id as workstationId from root.f2.process_param_${workstationId}_* order by time desc limit 1 align by device
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</select>
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</mapper>
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