101 lines
3.4 KiB
XML
101 lines
3.4 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="cn.iocoder.yudao.module.iot.dal.tdengine.TdEngineDDLMapper">
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<!-- 创建数据库 -->
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<update id="createDatabase" parameterType="String">
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CREATE DATABASE IF NOT EXISTS ${dataBaseName}
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</update>
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<!-- 创建超级表 -->
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<update id="createSuperTable">
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CREATE STABLE IF NOT EXISTS ${dataBaseName}.${superTableName}
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<foreach item="item" collection="columns" separator=","
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open="(" close=")">
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${item.fieldName} ${item.dataType}
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<if test="item.dataLength > 0">
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(${item.dataLength})
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</if>
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</foreach>
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TAGS
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<foreach item="item" collection="tags" separator=","
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open="(" close=")">
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${item.fieldName} ${item.dataType}
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<if test="item.dataLength > 0">
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(${item.dataLength})
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</if>
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</foreach>
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</update>
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<!-- 查看超级表 -->
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<select id="showSuperTables" resultType="java.util.Map">
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SHOW ${dataBaseName}.STABLES LIKE '${superTableName}'
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</select>
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<!-- 描述超级表结构 -->
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<select id="describeSuperTable" resultType="java.util.Map">
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DESCRIBE ${dataBaseName}.${superTableName}
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</select>
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<!-- 为超级表添加列 -->
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<update id="addColumnForSuperTable">
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ALTER STABLE ${dataBaseName}.${superTableName} ADD COLUMN ${column.fieldName} ${column.dataType}
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<if test="column.dataLength > 0">
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(${column.dataLength})
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</if>
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</update>
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<!-- 为超级表删除列 -->
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<update id="dropColumnForSuperTable">
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ALTER STABLE ${dataBaseName}.${superTableName} DROP COLUMN ${column.fieldName}
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</update>
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<!-- 修改列宽 -->
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<update id="modifyColumnWidthForSuperTable">
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ALTER STABLE ${dataBaseName}.${superTableName} MODIFY COLUMN ${column.fieldName} ${column.dataType}
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<if test="column.dataLength > 0">
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(${column.dataLength})
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</if>
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</update>
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<!-- 为超级表添加标签 -->
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<update id="addTagForSuperTable">
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ALTER STABLE ${dataBaseName}.${superTableName} ADD TAG ${tag.fieldName} ${tag.dataType}
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<if test="tag.dataLength > 0">
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(${tag.dataLength})
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</if>
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</update>
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<!-- 为超级表删除标签 -->
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<update id="dropTagForSuperTable">
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ALTER STABLE ${dataBaseName}.${superTableName} DROP TAG ${tag.fieldName}
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</update>
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<!-- 创建子表 -->
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<update id="createTable">
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CREATE TABLE IF NOT EXISTS ${dataBaseName}.${tableName}
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USING ${dataBaseName}.${superTableName}
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TAGS
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<foreach item="item" collection="tags" separator=","
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open="(" close=")">
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#{item.fieldValue}
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</foreach>
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</update>
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<!-- 创建子表，带有 TAGS -->
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<update id="createTableWithTags">
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CREATE TABLE IF NOT EXISTS ${dataBaseName}.${tableName}
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USING ${dataBaseName}.${superTableName}
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<foreach item="item" collection="tags" separator="," open="(" close=")">
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#{item.fieldName}
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</foreach>
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TAGS
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<foreach item="item" collection="tags" separator=","
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open="(" close=")">
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#{item.fieldValue}
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</foreach>
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</update>
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</mapper> |