<?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.mzl.flower.mapper.flower.FlowerParamItemMapper">
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<update id="addTableColumn">
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ALTER TABLE `${tableName}` ADD ${field.column} ${field.type}
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<choose>
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<when test="field.primaryKey">
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NOT NULL primary key
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</when>
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<otherwise>
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DEFAULT NULL
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</otherwise>
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</choose>
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<if test="field.comment != null and field.comment != ''">
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COMMENT #{field.comment}
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</if>
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</update>
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</mapper>
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