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xmlns="http://www.w3.org/2000/svg" class="icon print-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="print icon"><path d="M819.2 364.8h-44.8V128c0-17.067-14.933-32-32-32H281.6c-17.067 0-32 14.933-32 32v236.8h-44.8C145.067 364.8 96 413.867 96 473.6v192c0 59.733 49.067 108.8 108.8 108.8h44.8V896c0 17.067 14.933 32 32 32h460.8c17.067 0 32-14.933 32-32V774.4h44.8c59.733 0 108.8-49.067 108.8-108.8v-192c0-59.733-49.067-108.8-108.8-108.8zM313.6 160h396.8v204.8H313.6V160zm396.8 704H313.6V620.8h396.8V864zM864 665.6c0 25.6-19.2 44.8-44.8 44.8h-44.8V588.8c0-17.067-14.933-32-32-32H281.6c-17.067 0-32 14.933-32 32v121.6h-44.8c-25.6 0-44.8-19.2-44.8-44.8v-192c0-25.6 19.2-44.8 44.8-44.8h614.4c25.6 0 44.8 19.2 44.8 44.8v192z"></path></svg></button><div class="arrow end"></div></div><div class="vp-toc-wrapper"><ul class="vp-toc-list"><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level2" href="#tsfile导入导出工具">TsFile导入导出工具</a></li><li><ul class="vp-toc-list"><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#介绍">介绍</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#使用sql加载">使用SQL加载</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#使用脚本加载">使用脚本加载</a></li><!----><!--]--></ul></li><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level2" href="#导出-tsfile">导出 TsFile</a></li><li><ul class="vp-toc-list"><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#使用-export-tsfile-sh">使用 export-tsfile.sh</a></li><!----><!--]--></ul></li><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level2" href="#csv导入导出工具">CSV导入导出工具</a></li><li><ul class="vp-toc-list"><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#使用-export-csv-sh">使用 export-csv.sh</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#使用-import-csv-sh">使用 import-csv.sh</a></li><!----><!--]--></ul></li><!--]--></ul><div class="vp-toc-marker" style="top:-1.7rem;"></div></div><!--[--><!----><!--]--></aside></div><!--[--><!----><!--]--><div class="theme-hope-content"><h1 id="导入导出工具" tabindex="-1"><a class="header-anchor" href="#导入导出工具"><span>导入导出工具</span></a></h1><p>针对于不同场景，IoTDB 为用户提供多种批量导入数据的操作方式，本章节向大家介绍最为常用的两种方式为 CSV文本形式的导入 和 TsFile文件形式的导入。</p><h2 id="tsfile导入导出工具" tabindex="-1"><a class="header-anchor" href="#tsfile导入导出工具"><span>TsFile导入导出工具</span></a></h2><p>TsFile 是在 IoTDB 中使用的时间序列的文件格式，您可以通过CLI等工具直接将存有时间序列的一个或多个 TsFile 文件导入到另外一个正在运行的IoTDB实例中。</p><h3 id="介绍" tabindex="-1"><a class="header-anchor" href="#介绍"><span>介绍</span></a></h3><p>加载外部 tsfile 文件工具允许用户向正在运行中的 Apache IoTDB 中加载 tsfile 文件。或者您也可以使用脚本的方式将tsfile加载进IoTDB。</p><h3 id="使用sql加载" tabindex="-1"><a class="header-anchor" href="#使用sql加载"><span>使用SQL加载</span></a></h3><p>用户通过 Cli 工具或 JDBC 向 Apache IoTDB 系统发送指定命令实现文件加载的功能。</p><h4 id="加载-tsfile-文件" tabindex="-1"><a class="header-anchor" href="#加载-tsfile-文件"><span>加载 tsfile 文件</span></a></h4><p>加载 tsfile 文件的指令为：<code>load '<path/dir>' [sglevel=int][verify=true/false][onSuccess=delete/none]</code></p><p>该指令有两种用法：</p><ol><li>通过指定文件路径(绝对路径)加载单 tsfile 文件。</li></ol><p>第一个参数表示待加载的 tsfile 文件的路径。load 命令有三个可选项，分别是 sglevel，值域为整数，verify，值域为 true/false，onSuccess，值域为delete/none。不同选项之间用空格隔开，选项之间无顺序要求。</p><p>SGLEVEL 选项，当 tsfile 对应的 database 不存在时，用户可以通过 sglevel 参数的值来制定 database 的级别，默认为<code>iotdb-datanode.properties</code>中设置的级别。例如当设置 level 参数为1时表明此 tsfile 中所有时间序列中层级为1的前缀路径是 database，即若存在设备 root.sg.d1.s1，此时 <code>root.sg</code> 被指定为 database。</p><p>VERIFY 选项表示是否对载入的 tsfile 中的所有时间序列进行元数据检查，默认为 true。开启时，若载入的 tsfile 中的时间序列在当前 iotdb 中也存在，则会比较该时间序列的所有 Measurement 的数据类型是否一致，如果出现不一致将会导致载入失败，关闭该选项会跳过检查，载入更快。</p><p>ONSUCCESS选项表示对于成功载入的tsfile的处置方式，默认为delete，即tsfile成功加载后将被删除，如果是none表明tsfile成功加载之后依然被保留在源文件夹。</p><p>若待加载的 tsfile 文件对应的<code>.resource</code>文件存在，会被一并加载至 Apache IoTDB 数据文件的目录和引擎中，否则将通过 tsfile 文件重新生成对应的<code>.resource</code>文件，即加载的 tsfile 文件所对应的<code>.resource</code>文件不是必要的。</p><p>示例：</p><ul><li><code>load '/Users/Desktop/data/1575028885956-101-0.tsfile'</code></li><li><code>load '/Users/Desktop/data/1575028885956-101-0.tsfile' verify=true</code></li><li><code>load '/Users/Desktop/data/1575028885956-101-0.tsfile' verify=false</code></li><li><code>load '/Users/Desktop/data/1575028885956-101-0.tsfile' sglevel=1</code></li><li><code>load '/Users/Desktop/data/1575028885956-101-0.tsfile' onSuccess=delete</code></li><li><code>load '/Users/Desktop/data/1575028885956-101-0.tsfile' verify=true sglevel=1</code></li><li><code>load '/Users/Desktop/data/1575028885956-101-0.tsfile' verify=false sglevel=1</code></li><li><code>load '/Users/Desktop/data/1575028885956-101-0.tsfile' verify=true onSuccess=none</code></li><li><code>load '/Users/Desktop/data/1575028885956-101-0.tsfile' verify=false sglevel=1 onSuccess=delete</code></li></ul><ol start="2"><li>通过指定文件夹路径(绝对路径)批量加载文件。</li></ol><p>第一个参数表示待加载的 tsfile 文件夹的路径。选项意义与加载单个 tsfile 文件相同。</p><p>示例：</p><ul><li><code>load '/Users/Desktop/data'</code></li><li><code>load '/Users/Desktop/data' verify=false</code></li><li><code>load '/Users/Desktop/data' verify=true</code></li><li><code>load '/Users/Desktop/data' verify=true sglevel=1</code></li><li><code>load '/Users/Desktop/data' verify=false sglevel=1 onSuccess=delete</code></li></ul><p><strong>注意</strong>，如果<code>$IOTDB_HOME$/conf/iotdb-datanode.properties</code>中<code>enable_auto_create_schema=true</code>时会在加载tsfile的时候自动创建tsfile中的元数据，否则不会自动创建。</p><h3 id="使用脚本加载" tabindex="-1"><a class="header-anchor" href="#使用脚本加载"><span>使用脚本加载</span></a></h3><p>若您在Windows环境中，请运行<code>$IOTDB_HOME/tools/load-tsfile.bat</code>，若为Linux或Unix，请运行<code>load-tsfile.sh</code></p><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code>./load-tsfile.bat <span class="token parameter variable">-f</span> filePath <span class="token punctuation">[</span>-h host<span class="token punctuation">]</span> <span class="token punctuation">[</span>-p port<span class="token punctuation">]</span> <span class="token punctuation">[</span>-u username<span class="token punctuation">]</span> <span class="token punctuation">[</span>-pw password<span class="token punctuation">]</span> <span class="token punctuation">[</span>--sgLevel int<span class="token punctuation">]</span> <span class="token punctuation">[</span>--verify true/false<span class="token punctuation">]</span> <span class="token punctuation">[</span>--onSuccess none/delete<span class="token punctuation">]</span> |
| <span class="token parameter variable">-f</span> 待加载的文件或文件夹路径，必要字段 |
| <span class="token parameter variable">-h</span> IoTDB的Host地址，可选，默认127.0.0.1 |
| <span class="token parameter variable">-p</span> IoTDB的端口，可选，默认6667 |
| <span class="token parameter variable">-u</span> IoTDb登录用户名，可选，默认root |
| <span class="token parameter variable">-pw</span> IoTDB登录密码，可选，默认root |
| <span class="token parameter variable">--sgLevel</span> 加载TsFile自动创建Database的路径层级，可选，默认值为iotdb-common.properties指定值 |
| <span class="token parameter variable">--verify</span> 是否对加载TsFile进行元数据校验，可选，默认为True |
| <span class="token parameter variable">--onSuccess</span> 对成功加载的TsFile的处理方法，可选，默认为delete，成功加载之后删除源TsFile，设为none时会 保留源TsFile |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h4 id="使用范例" tabindex="-1"><a class="header-anchor" href="#使用范例"><span>使用范例</span></a></h4><p>假定服务器192.168.0.101:6667上运行一个IoTDB实例，想从Iotdb进程所在服务器的路径将所有TsFile文件都加载进此IoTDB实例。</p><p>首先移动至<code>$IOTDB_HOME/tools/</code>，打开命令行，然后执行</p><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code>./load-tsfile.bat <span class="token parameter variable">-f</span> D:<span class="token punctuation">\</span>IoTDB<span class="token punctuation">\</span>data <span class="token parameter variable">-h</span> <span class="token number">192.168</span>.0.101 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>等待脚本执行完成之后，可以检查IoTDB实例中数据已经被正确加载</p><h4 id="常见问题" tabindex="-1"><a class="header-anchor" href="#常见问题"><span>常见问题</span></a></h4><ul><li>找不到或无法加载主类 <ul><li>可能是由于未设置环境变量$IOTDB_HOME，请设置环境变量之后重试</li></ul></li><li>提示-f option must be set! <ul><li>输入命令缺少待-f字段（加载文件或文件夹路径），请添加之后重新执行</li></ul></li><li>执行到中途崩溃了想重新加载怎么办 <ul><li>重新执行刚才的命令，重新加载数据不会影响加载之后的正确性</li></ul></li></ul><h2 id="导出-tsfile" tabindex="-1"><a class="header-anchor" href="#导出-tsfile"><span>导出 TsFile</span></a></h2><p>TsFile 工具可帮您 通过执行指定sql、命令行sql、sql文件的方式将结果集以TsFile文件的格式导出至指定路径.</p><h3 id="使用-export-tsfile-sh" tabindex="-1"><a class="header-anchor" href="#使用-export-tsfile-sh"><span>使用 <code>export-tsfile.sh</code></span></a></h3><h4 id="运行方法" tabindex="-1"><a class="header-anchor" href="#运行方法"><span>运行方法</span></a></h4><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code><span class="token comment"># Unix/OS X</span> |
| <span class="token operator">></span> tools/export-tsfile.sh <span class="token parameter variable">-h</span> <span class="token operator"><</span>ip<span class="token operator">></span> <span class="token parameter variable">-p</span> <span class="token operator"><</span>port<span class="token operator">></span> <span class="token parameter variable">-u</span> <span class="token operator"><</span>username<span class="token operator">></span> <span class="token parameter variable">-pw</span> <span class="token operator"><</span>password<span class="token operator">></span> <span class="token parameter variable">-td</span> <span class="token operator"><</span>directory<span class="token operator">></span> <span class="token punctuation">[</span>-f <span class="token operator"><</span>export filename<span class="token operator">></span> <span class="token parameter variable">-q</span> <span class="token operator"><</span>query command<span class="token operator">></span> <span class="token parameter variable">-s</span> <span class="token operator"><</span>sql file<span class="token operator">></span><span class="token punctuation">]</span> |
| |
| <span class="token comment"># Windows</span> |
| <span class="token operator">></span> tools<span class="token punctuation">\</span>export-tsfile.bat <span class="token parameter variable">-h</span> <span class="token operator"><</span>ip<span class="token operator">></span> <span class="token parameter variable">-p</span> <span class="token operator"><</span>port<span class="token operator">></span> <span class="token parameter variable">-u</span> <span class="token operator"><</span>username<span class="token operator">></span> <span class="token parameter variable">-pw</span> <span class="token operator"><</span>password<span class="token operator">></span> <span class="token parameter variable">-td</span> <span class="token operator"><</span>directory<span class="token operator">></span> <span class="token punctuation">[</span>-f <span class="token operator"><</span>export filename<span class="token operator">></span> <span class="token parameter variable">-q</span> <span class="token operator"><</span>query command<span class="token operator">></span> <span class="token parameter variable">-s</span> <span class="token operator"><</span>sql file<span class="token operator">></span><span class="token punctuation">]</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>参数:</p><ul><li><code>-h <host></code>: <ul><li>IoTDB服务的主机地址。</li></ul></li><li><code>-p <port></code>: <ul><li>IoTDB服务的端口号。</li></ul></li><li><code>-u <username></code>: <ul><li>IoTDB服务的用户名。</li></ul></li><li><code>-pw <password></code>: <ul><li>IoTDB服务的密码。</li></ul></li><li><code>-td <directory></code>: <ul><li>为导出的TsFile文件指定输出路径。</li></ul></li><li><code>-f <tsfile name></code>: <ul><li>为导出的TsFile文件的文件名，只需写文件名称，不能包含文件路径和后缀。如果sql文件或控制台输入时包含多个sql，会按照sql顺序生成多个TsFile文件。</li><li>例如：文件中或命令行共有3个SQL，-f 为"dump"，那么会在目标路径下生成 dump0.tsfile、dump1.tsfile、dump2.tsfile三个TsFile文件。</li></ul></li><li><code>-q <query command></code>: <ul><li>在命令中直接指定想要执行的查询语句。</li><li>例如: <code>select * from root.** limit 100</code></li></ul></li><li><code>-s <sql file></code>: <ul><li>指定一个SQL文件，里面包含一条或多条SQL语句。如果一个SQL文件中包含多条SQL语句，SQL语句之间应该用换行符进行分割。每一条SQL语句对应一个输出的TsFile文件。</li></ul></li><li><code>-t <timeout></code>: <ul><li>指定session查询时的超时时间，单位为ms</li></ul></li></ul><p>除此之外，如果你没有使用<code>-s</code>和<code>-q</code>参数，在导出脚本被启动之后你需要按照程序提示输入查询语句，不同的查询结果会被保存到不同的TsFile文件中。</p><h4 id="运行示例" tabindex="-1"><a class="header-anchor" href="#运行示例"><span>运行示例</span></a></h4><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code><span class="token comment"># Unix/OS X</span> |
| <span class="token operator">></span> tools/export-tsfile.sh <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ |
| <span class="token comment"># or</span> |
| <span class="token operator">></span> tools/export-tsfile.sh <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ <span class="token parameter variable">-q</span> <span class="token string">"select * from root.** align by device"</span> |
| <span class="token comment"># Or</span> |
| <span class="token operator">></span> tools/export-tsfile.sh <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ <span class="token parameter variable">-s</span> ./sql.txt |
| <span class="token comment"># Or</span> |
| <span class="token operator">></span> tools/export-tsfile.sh <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ <span class="token parameter variable">-s</span> ./sql.txt <span class="token parameter variable">-f</span> myTsFile |
| <span class="token comment"># Or</span> |
| <span class="token operator">></span> tools/export-tsfile.sh <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ <span class="token parameter variable">-s</span> ./sql.txt <span class="token parameter variable">-f</span> myTsFile <span class="token parameter variable">-t</span> <span class="token number">10000</span> |
| |
| <span class="token comment"># Windows</span> |
| <span class="token operator">></span> tools/export-tsfile.bat <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ |
| <span class="token comment"># Or</span> |
| <span class="token operator">></span> tools/export-tsfile.bat <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ <span class="token parameter variable">-q</span> <span class="token string">"select * from root.** align by device"</span> |
| <span class="token comment"># Or</span> |
| <span class="token operator">></span> tools/export-tsfile.bat <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ <span class="token parameter variable">-s</span> ./sql.txt |
| <span class="token comment"># Or</span> |
| <span class="token operator">></span> tools/export-tsfile.bat <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ <span class="token parameter variable">-s</span> ./sql.txt <span class="token parameter variable">-f</span> myTsFile |
| <span class="token comment"># Or</span> |
| <span class="token operator">></span> tools/export-tsfile.sh <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ <span class="token parameter variable">-s</span> ./sql.txt <span class="token parameter variable">-f</span> myTsFile <span class="token parameter variable">-t</span> <span class="token number">10000</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h4 id="q-a" tabindex="-1"><a class="header-anchor" href="#q-a"><span>Q&A</span></a></h4><ul><li>建议在导入数据时不要同时执行写入数据命令，这将有可能导致JVM内存不足的情况。</li></ul><h2 id="csv导入导出工具" tabindex="-1"><a class="header-anchor" href="#csv导入导出工具"><span>CSV导入导出工具</span></a></h2><p>CSV 是以纯文本形式存储表格数据，您可以在CSV文件中写入多条格式化的数据，并批量的将这些数据导入到 IoTDB 中，在导入数据之前，建议在IoTDB中创建好对应的元数据信息。如果忘记创建元数据也不要担心，IoTDB 可以自动将CSV中数据推断为其对应的数据类型，前提是你每一列的数据类型必须唯一。除单个文件外，此工具还支持以文件夹的形式导入多个 CSV 文件，并且支持设置如时间精度等优化参数。</p><h3 id="使用-export-csv-sh" tabindex="-1"><a class="header-anchor" href="#使用-export-csv-sh"><span>使用 <code>export-csv.sh</code></span></a></h3><h4 id="运行方法-1" tabindex="-1"><a class="header-anchor" href="#运行方法-1"><span>运行方法</span></a></h4><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code><span class="token comment"># Unix/OS X</span> |
| <span class="token operator">></span> tools/export-csv.sh <span class="token parameter variable">-h</span> <span class="token operator"><</span>ip<span class="token operator">></span> <span class="token parameter variable">-p</span> <span class="token operator"><</span>port<span class="token operator">></span> <span class="token parameter variable">-u</span> <span class="token operator"><</span>username<span class="token operator">></span> <span class="token parameter variable">-pw</span> <span class="token operator"><</span>password<span class="token operator">></span> <span class="token parameter variable">-td</span> <span class="token operator"><</span>directory<span class="token operator">></span> <span class="token punctuation">[</span>-tf <span class="token operator"><</span>time-format<span class="token operator">></span> <span class="token parameter variable">-datatype</span> <span class="token operator"><</span>true/false<span class="token operator">></span> <span class="token parameter variable">-q</span> <span class="token operator"><</span>query command<span class="token operator">></span> <span class="token parameter variable">-s</span> <span class="token operator"><</span>sql file<span class="token operator">></span><span class="token punctuation">]</span> |
| |
| <span class="token comment"># Windows</span> |
| <span class="token operator">></span> tools<span class="token punctuation">\</span>export-csv.bat <span class="token parameter variable">-h</span> <span class="token operator"><</span>ip<span class="token operator">></span> <span class="token parameter variable">-p</span> <span class="token operator"><</span>port<span class="token operator">></span> <span class="token parameter variable">-u</span> <span class="token operator"><</span>username<span class="token operator">></span> <span class="token parameter variable">-pw</span> <span class="token operator"><</span>password<span class="token operator">></span> <span class="token parameter variable">-td</span> <span class="token operator"><</span>directory<span class="token operator">></span> <span class="token punctuation">[</span>-tf <span class="token operator"><</span>time-format<span class="token operator">></span> <span class="token parameter variable">-datatype</span> <span class="token operator"><</span>true/false<span class="token operator">></span> <span class="token parameter variable">-q</span> <span class="token operator"><</span>query command<span class="token operator">></span> <span class="token parameter variable">-s</span> <span class="token operator"><</span>sql file<span class="token operator">></span><span class="token punctuation">]</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>参数:</p><ul><li><code>-datatype</code>: <ul><li>true (默认): 在CSV文件的header中时间序列的后面打印出对应的数据类型。例如：<code>Time, root.sg1.d1.s1(INT32), root.sg1.d1.s2(INT64)</code>.</li><li>false: 只在CSV的header中打印出时间序列的名字, <code>Time, root.sg1.d1.s1 , root.sg1.d1.s2</code></li></ul></li><li><code>-q <query command></code>: <ul><li>在命令中直接指定想要执行的查询语句。</li><li>例如: <code>select * from root.** limit 100</code>, or <code>select * from root.** limit 100 align by device</code></li></ul></li><li><code>-s <sql file></code>: <ul><li>指定一个SQL文件，里面包含一条或多条SQL语句。如果一个SQL文件中包含多条SQL语句，SQL语句之间应该用换行符进行分割。每一条SQL语句对应一个输出的CSV文件。</li></ul></li><li><code>-td <directory></code>: <ul><li>为导出的CSV文件指定输出路径。</li></ul></li><li><code>-tf <time-format></code>: <ul><li>指定一个你想要得到的时间格式。时间格式必须遵守<a href="https://calendars.wikia.org/wiki/ISO_8601" target="_blank" rel="noopener noreferrer">ISO 8601<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a>标准。如果说你想要以时间戳来保存时间，那就设置为<code>-tf timestamp</code>。</li><li>例如: <code>-tf yyyy-MM-dd\ HH:mm:ss</code> or <code>-tf timestamp</code></li></ul></li><li><code>-linesPerFile <int></code>: <ul><li>指定导出的dump文件最大行数，默认值为<code>10000</code>。</li><li>例如： <code>-linesPerFile 1</code></li></ul></li><li><code>-t <timeout></code>: <ul><li>指定session查询时的超时时间，单位为ms</li></ul></li></ul><p>除此之外，如果你没有使用<code>-s</code>和<code>-q</code>参数，在导出脚本被启动之后你需要按照程序提示输入查询语句，不同的查询结果会被保存到不同的CSV文件中。</p><h4 id="运行示例-1" tabindex="-1"><a class="header-anchor" href="#运行示例-1"><span>运行示例</span></a></h4><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code><span class="token comment"># Unix/OS X</span> |
| <span class="token operator">></span> tools/export-csv.sh <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ |
| <span class="token comment"># Or</span> |
| <span class="token operator">></span> tools/export-csv.sh <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ <span class="token parameter variable">-tf</span> yyyy-MM-dd<span class="token punctuation">\</span> HH:mm:ss |
| <span class="token comment"># or</span> |
| <span class="token operator">></span> tools/export-csv.sh <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ <span class="token parameter variable">-q</span> <span class="token string">"select * from root.**"</span> |
| <span class="token comment"># Or</span> |
| <span class="token operator">></span> tools/export-csv.sh <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ <span class="token parameter variable">-s</span> sql.txt |
| <span class="token comment"># Or</span> |
| <span class="token operator">></span> tools/export-csv.sh <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ <span class="token parameter variable">-tf</span> yyyy-MM-dd<span class="token punctuation">\</span> HH:mm:ss <span class="token parameter variable">-s</span> sql.txt |
| <span class="token comment"># Or</span> |
| <span class="token operator">></span> tools/export-csv.sh <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ <span class="token parameter variable">-tf</span> yyyy-MM-dd<span class="token punctuation">\</span> HH:mm:ss <span class="token parameter variable">-s</span> sql.txt <span class="token parameter variable">-linesPerFile</span> <span class="token number">10</span> |
| <span class="token comment"># Or</span> |
| <span class="token operator">></span> tools/export-csv.sh <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ <span class="token parameter variable">-tf</span> yyyy-MM-dd<span class="token punctuation">\</span> HH:mm:ss <span class="token parameter variable">-s</span> sql.txt <span class="token parameter variable">-linesPerFile</span> <span class="token number">10</span> <span class="token parameter variable">-t</span> <span class="token number">10000</span> |
| |
| <span class="token comment"># Windows</span> |
| <span class="token operator">></span> tools/export-csv.bat <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ |
| <span class="token comment"># Or</span> |
| <span class="token operator">></span> tools/export-csv.bat <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ <span class="token parameter variable">-tf</span> yyyy-MM-dd<span class="token punctuation">\</span> HH:mm:ss |
| <span class="token comment"># or</span> |
| <span class="token operator">></span> tools/export-csv.bat <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ <span class="token parameter variable">-q</span> <span class="token string">"select * from root.**"</span> |
| <span class="token comment"># Or</span> |
| <span class="token operator">></span> tools/export-csv.bat <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ <span class="token parameter variable">-s</span> sql.txt |
| <span class="token comment"># Or</span> |
| <span class="token operator">></span> tools/export-csv.bat <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ <span class="token parameter variable">-tf</span> yyyy-MM-dd<span class="token punctuation">\</span> HH:mm:ss <span class="token parameter variable">-s</span> sql.txt |
| <span class="token comment"># Or</span> |
| <span class="token operator">></span> tools/export-csv.bat <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ <span class="token parameter variable">-tf</span> yyyy-MM-dd<span class="token punctuation">\</span> HH:mm:ss <span class="token parameter variable">-s</span> sql.txt <span class="token parameter variable">-linesPerFile</span> <span class="token number">10</span> |
| <span class="token comment"># Or</span> |
| <span class="token operator">></span> tools/export-csv.sh <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-td</span> ./ <span class="token parameter variable">-tf</span> yyyy-MM-dd<span class="token punctuation">\</span> HH:mm:ss <span class="token parameter variable">-s</span> sql.txt <span class="token parameter variable">-linesPerFile</span> <span class="token number">10</span> <span class="token parameter variable">-t</span> <span class="token number">10000</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h4 id="sql-文件示例" tabindex="-1"><a class="header-anchor" href="#sql-文件示例"><span>SQL 文件示例</span></a></h4><div class="language-sql line-numbers-mode" data-ext="sql" data-title="sql"><pre class="language-sql"><code><span class="token keyword">select</span> <span class="token operator">*</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span><span class="token punctuation">;</span> |
| <span class="token keyword">select</span> <span class="token operator">*</span> <span class="token keyword">from</span> root<span class="token punctuation">.</span><span class="token operator">*</span><span class="token operator">*</span> align <span class="token keyword">by</span> device<span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><p><code>select * from root.**</code>的执行结果：</p><div class="language-sql line-numbers-mode" data-ext="sql" data-title="sql"><pre class="language-sql"><code><span class="token keyword">Time</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf04<span class="token punctuation">.</span>wt04<span class="token punctuation">.</span><span class="token keyword">status</span><span class="token punctuation">(</span><span class="token keyword">BOOLEAN</span><span class="token punctuation">)</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf03<span class="token punctuation">.</span>wt03<span class="token punctuation">.</span>hardware<span class="token punctuation">(</span><span class="token keyword">TEXT</span><span class="token punctuation">)</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">.</span><span class="token keyword">status</span><span class="token punctuation">(</span><span class="token keyword">BOOLEAN</span><span class="token punctuation">)</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">.</span>hardware<span class="token punctuation">(</span><span class="token keyword">TEXT</span><span class="token punctuation">)</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">.</span>hardware<span class="token punctuation">(</span><span class="token keyword">TEXT</span><span class="token punctuation">)</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">.</span><span class="token keyword">status</span><span class="token punctuation">(</span><span class="token keyword">BOOLEAN</span><span class="token punctuation">)</span> |
| <span class="token number">1970</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T08:<span class="token number">00</span>:<span class="token number">00.001</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">,</span><span class="token boolean">true</span><span class="token punctuation">,</span><span class="token string">"v1"</span><span class="token punctuation">,</span><span class="token boolean">true</span><span class="token punctuation">,</span><span class="token string">"v1"</span><span class="token punctuation">,</span>v1<span class="token punctuation">,</span><span class="token boolean">true</span> |
| <span class="token number">1970</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T08:<span class="token number">00</span>:<span class="token number">00.002</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">,</span><span class="token boolean">true</span><span class="token punctuation">,</span><span class="token string">"v1"</span><span class="token punctuation">,</span><span class="token punctuation">,</span><span class="token punctuation">,</span><span class="token punctuation">,</span><span class="token boolean">true</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p><code>select * from root.** align by device</code>的执行结果：</p><div class="language-sql line-numbers-mode" data-ext="sql" data-title="sql"><pre class="language-sql"><code><span class="token keyword">Time</span><span class="token punctuation">,</span>Device<span class="token punctuation">,</span>hardware<span class="token punctuation">(</span><span class="token keyword">TEXT</span><span class="token punctuation">)</span><span class="token punctuation">,</span><span class="token keyword">status</span><span class="token punctuation">(</span><span class="token keyword">BOOLEAN</span><span class="token punctuation">)</span> |
| <span class="token number">1970</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T08:<span class="token number">00</span>:<span class="token number">00.001</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">,</span><span class="token string">"v1"</span><span class="token punctuation">,</span><span class="token boolean">true</span> |
| <span class="token number">1970</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T08:<span class="token number">00</span>:<span class="token number">00.002</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf01<span class="token punctuation">.</span>wt01<span class="token punctuation">,</span><span class="token punctuation">,</span><span class="token boolean">true</span> |
| <span class="token number">1970</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T08:<span class="token number">00</span>:<span class="token number">00.001</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf02<span class="token punctuation">.</span>wt02<span class="token punctuation">,</span><span class="token string">"v1"</span><span class="token punctuation">,</span><span class="token boolean">true</span> |
| <span class="token number">1970</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T08:<span class="token number">00</span>:<span class="token number">00.001</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf03<span class="token punctuation">.</span>wt03<span class="token punctuation">,</span><span class="token string">"v1"</span><span class="token punctuation">,</span> |
| <span class="token number">1970</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T08:<span class="token number">00</span>:<span class="token number">00.002</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf03<span class="token punctuation">.</span>wt03<span class="token punctuation">,</span><span class="token string">"v1"</span><span class="token punctuation">,</span> |
| <span class="token number">1970</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T08:<span class="token number">00</span>:<span class="token number">00.001</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf04<span class="token punctuation">.</span>wt04<span class="token punctuation">,</span><span class="token punctuation">,</span><span class="token boolean">true</span> |
| <span class="token number">1970</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T08:<span class="token number">00</span>:<span class="token number">00.002</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>ln<span class="token punctuation">.</span>wf04<span class="token punctuation">.</span>wt04<span class="token punctuation">,</span><span class="token punctuation">,</span><span class="token boolean">true</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>布尔类型的数据用<code>true</code>或者<code>false</code>来表示，此处没有用双引号括起来。文本数据需要使用双引号括起来。</p><h4 id="注意" tabindex="-1"><a class="header-anchor" href="#注意"><span>注意</span></a></h4><p>注意，如果导出字段存在如下特殊字符:</p><ol><li><code>,</code>: 导出程序会在<code>,</code>字符前加<code>\</code>来进行转义。</li></ol><h3 id="使用-import-csv-sh" tabindex="-1"><a class="header-anchor" href="#使用-import-csv-sh"><span>使用 <code>import-csv.sh</code></span></a></h3><h4 id="创建元数据-可选" tabindex="-1"><a class="header-anchor" href="#创建元数据-可选"><span>创建元数据 (可选)</span></a></h4><div class="language-sql line-numbers-mode" data-ext="sql" data-title="sql"><pre class="language-sql"><code><span class="token keyword">CREATE</span> <span class="token keyword">DATABASE</span> root<span class="token punctuation">.</span>fit<span class="token punctuation">.</span>d1<span class="token punctuation">;</span> |
| <span class="token keyword">CREATE</span> <span class="token keyword">DATABASE</span> root<span class="token punctuation">.</span>fit<span class="token punctuation">.</span>d2<span class="token punctuation">;</span> |
| <span class="token keyword">CREATE</span> <span class="token keyword">DATABASE</span> root<span class="token punctuation">.</span>fit<span class="token punctuation">.</span>p<span class="token punctuation">;</span> |
| <span class="token keyword">CREATE</span> TIMESERIES root<span class="token punctuation">.</span>fit<span class="token punctuation">.</span>d1<span class="token punctuation">.</span>s1 <span class="token keyword">WITH</span> DATATYPE<span class="token operator">=</span>INT32<span class="token punctuation">,</span>ENCODING<span class="token operator">=</span>RLE<span class="token punctuation">;</span> |
| <span class="token keyword">CREATE</span> TIMESERIES root<span class="token punctuation">.</span>fit<span class="token punctuation">.</span>d1<span class="token punctuation">.</span>s2 <span class="token keyword">WITH</span> DATATYPE<span class="token operator">=</span><span class="token keyword">TEXT</span><span class="token punctuation">,</span>ENCODING<span class="token operator">=</span>PLAIN<span class="token punctuation">;</span> |
| <span class="token keyword">CREATE</span> TIMESERIES root<span class="token punctuation">.</span>fit<span class="token punctuation">.</span>d2<span class="token punctuation">.</span>s1 <span class="token keyword">WITH</span> DATATYPE<span class="token operator">=</span>INT32<span class="token punctuation">,</span>ENCODING<span class="token operator">=</span>RLE<span class="token punctuation">;</span> |
| <span class="token keyword">CREATE</span> TIMESERIES root<span class="token punctuation">.</span>fit<span class="token punctuation">.</span>d2<span class="token punctuation">.</span>s3 <span class="token keyword">WITH</span> DATATYPE<span class="token operator">=</span>INT32<span class="token punctuation">,</span>ENCODING<span class="token operator">=</span>RLE<span class="token punctuation">;</span> |
| <span class="token keyword">CREATE</span> TIMESERIES root<span class="token punctuation">.</span>fit<span class="token punctuation">.</span>p<span class="token punctuation">.</span>s1 <span class="token keyword">WITH</span> DATATYPE<span class="token operator">=</span>INT32<span class="token punctuation">,</span>ENCODING<span class="token operator">=</span>RLE<span class="token punctuation">;</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>IoTDB 具有类型推断的能力，因此在数据导入前创建元数据不是必须的。但我们仍然推荐在使用 CSV 导入工具导入数据前创建元数据，因为这可以避免不必要的类型转换错误。</p><h4 id="待导入-csv-文件示例" tabindex="-1"><a class="header-anchor" href="#待导入-csv-文件示例"><span>待导入 CSV 文件示例</span></a></h4><p>通过时间对齐，并且header中不包含数据类型的数据。</p><div class="language-sql line-numbers-mode" data-ext="sql" data-title="sql"><pre class="language-sql"><code><span class="token keyword">Time</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>t1<span class="token punctuation">.</span>str<span class="token punctuation">,</span>root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>t2<span class="token punctuation">.</span>str<span class="token punctuation">,</span>root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>t2<span class="token punctuation">.</span><span class="token keyword">int</span> |
| <span class="token number">1970</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T08:<span class="token number">00</span>:<span class="token number">00.001</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">,</span><span class="token string">"123hello world"</span><span class="token punctuation">,</span><span class="token string">"123\,abc"</span><span class="token punctuation">,</span><span class="token number">100</span> |
| <span class="token number">1970</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T08:<span class="token number">00</span>:<span class="token number">00.002</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">,</span><span class="token string">"123"</span><span class="token punctuation">,</span><span class="token punctuation">,</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>通过时间对齐，并且header中包含数据类型的数据。（Text类型数据支持加双引号和不加双引号）</p><div class="language-sql line-numbers-mode" data-ext="sql" data-title="sql"><pre class="language-sql"><code><span class="token keyword">Time</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>t1<span class="token punctuation">.</span>str<span class="token punctuation">(</span><span class="token keyword">TEXT</span><span class="token punctuation">)</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>t2<span class="token punctuation">.</span>str<span class="token punctuation">(</span><span class="token keyword">TEXT</span><span class="token punctuation">)</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>t2<span class="token punctuation">.</span><span class="token keyword">int</span><span class="token punctuation">(</span>INT32<span class="token punctuation">)</span> |
| <span class="token number">1970</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T08:<span class="token number">00</span>:<span class="token number">00.001</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">,</span><span class="token string">"123hello world"</span><span class="token punctuation">,</span><span class="token string">"123\,abc"</span><span class="token punctuation">,</span><span class="token number">100</span> |
| <span class="token number">1970</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T08:<span class="token number">00</span>:<span class="token number">00.002</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">,</span><span class="token number">123</span><span class="token punctuation">,</span>hello world<span class="token punctuation">,</span><span class="token number">123</span> |
| <span class="token number">1970</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T08:<span class="token number">00</span>:<span class="token number">00.003</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">,</span><span class="token string">"123"</span><span class="token punctuation">,</span><span class="token punctuation">,</span> |
| <span class="token number">1970</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T08:<span class="token number">00</span>:<span class="token number">00.004</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">,</span><span class="token number">123</span><span class="token punctuation">,</span><span class="token punctuation">,</span><span class="token number">12</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>通过设备对齐，并且header中不包含数据类型的数据。</p><div class="language-sql line-numbers-mode" data-ext="sql" data-title="sql"><pre class="language-sql"><code><span class="token keyword">Time</span><span class="token punctuation">,</span>Device<span class="token punctuation">,</span>str<span class="token punctuation">,</span><span class="token keyword">int</span> |
| <span class="token number">1970</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T08:<span class="token number">00</span>:<span class="token number">00.001</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>t1<span class="token punctuation">,</span><span class="token string">"123hello world"</span><span class="token punctuation">,</span> |
| <span class="token number">1970</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T08:<span class="token number">00</span>:<span class="token number">00.002</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>t1<span class="token punctuation">,</span><span class="token string">"123"</span><span class="token punctuation">,</span> |
| <span class="token number">1970</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T08:<span class="token number">00</span>:<span class="token number">00.001</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>t2<span class="token punctuation">,</span><span class="token string">"123\,abc"</span><span class="token punctuation">,</span><span class="token number">100</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>通过设备对齐，并且header中包含数据类型的数据。（Text类型数据支持加双引号和不加双引号）</p><div class="language-sql line-numbers-mode" data-ext="sql" data-title="sql"><pre class="language-sql"><code><span class="token keyword">Time</span><span class="token punctuation">,</span>Device<span class="token punctuation">,</span>str<span class="token punctuation">(</span><span class="token keyword">TEXT</span><span class="token punctuation">)</span><span class="token punctuation">,</span><span class="token keyword">int</span><span class="token punctuation">(</span>INT32<span class="token punctuation">)</span> |
| <span class="token number">1970</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T08:<span class="token number">00</span>:<span class="token number">00.001</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>t1<span class="token punctuation">,</span><span class="token string">"123hello world"</span><span class="token punctuation">,</span> |
| <span class="token number">1970</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T08:<span class="token number">00</span>:<span class="token number">00.002</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>t1<span class="token punctuation">,</span><span class="token string">"123"</span><span class="token punctuation">,</span> |
| <span class="token number">1970</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T08:<span class="token number">00</span>:<span class="token number">00.001</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>t2<span class="token punctuation">,</span><span class="token string">"123\,abc"</span><span class="token punctuation">,</span><span class="token number">100</span> |
| <span class="token number">1970</span><span class="token operator">-</span><span class="token number">01</span><span class="token operator">-</span><span class="token number">01</span>T08:<span class="token number">00</span>:<span class="token number">00.002</span><span class="token operator">+</span><span class="token number">08</span>:<span class="token number">00</span><span class="token punctuation">,</span>root<span class="token punctuation">.</span>test<span class="token punctuation">.</span>t1<span class="token punctuation">,</span>hello world<span class="token punctuation">,</span><span class="token number">123</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h4 id="运行方法-2" tabindex="-1"><a class="header-anchor" href="#运行方法-2"><span>运行方法</span></a></h4><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code><span class="token comment"># Unix/OS X</span> |
| <span class="token operator">></span>tools/import-csv.sh <span class="token parameter variable">-h</span> <span class="token operator"><</span>ip<span class="token operator">></span> <span class="token parameter variable">-p</span> <span class="token operator"><</span>port<span class="token operator">></span> <span class="token parameter variable">-u</span> <span class="token operator"><</span>username<span class="token operator">></span> <span class="token parameter variable">-pw</span> <span class="token operator"><</span>password<span class="token operator">></span> <span class="token parameter variable">-f</span> <span class="token operator"><</span>xxx.csv<span class="token operator">></span> <span class="token punctuation">[</span>-fd <span class="token operator"><</span>./failedDirectory<span class="token operator">></span><span class="token punctuation">]</span> <span class="token punctuation">[</span>-aligned <span class="token operator"><</span>true<span class="token operator">></span><span class="token punctuation">]</span> <span class="token punctuation">[</span>-tp <span class="token operator"><</span>ms/ns/us<span class="token operator">></span><span class="token punctuation">]</span> <span class="token punctuation">[</span>-typeInfer <span class="token operator"><</span>boolean<span class="token operator">=</span>text,float<span class="token operator">=</span>double<span class="token punctuation">..</span>.<span class="token operator">></span><span class="token punctuation">]</span> <span class="token punctuation">[</span>-linesPerFailedFile <span class="token operator"><</span>int_value<span class="token operator">></span><span class="token punctuation">]</span> |
| <span class="token comment"># Windows</span> |
| <span class="token operator">></span>tools<span class="token punctuation">\</span>import-csv.bat <span class="token parameter variable">-h</span> <span class="token operator"><</span>ip<span class="token operator">></span> <span class="token parameter variable">-p</span> <span class="token operator"><</span>port<span class="token operator">></span> <span class="token parameter variable">-u</span> <span class="token operator"><</span>username<span class="token operator">></span> <span class="token parameter variable">-pw</span> <span class="token operator"><</span>password<span class="token operator">></span> <span class="token parameter variable">-f</span> <span class="token operator"><</span>xxx.csv<span class="token operator">></span> <span class="token punctuation">[</span>-fd <span class="token operator"><</span>./failedDirectory<span class="token operator">></span><span class="token punctuation">]</span> <span class="token punctuation">[</span>-aligned <span class="token operator"><</span>true<span class="token operator">></span><span class="token punctuation">]</span> <span class="token punctuation">[</span>-tp <span class="token operator"><</span>ms/ns/us<span class="token operator">></span><span class="token punctuation">]</span> <span class="token punctuation">[</span>-typeInfer <span class="token operator"><</span>boolean<span class="token operator">=</span>text,float<span class="token operator">=</span>double<span class="token punctuation">..</span>.<span class="token operator">></span><span class="token punctuation">]</span> <span class="token punctuation">[</span>-linesPerFailedFile <span class="token operator"><</span>int_value<span class="token operator">></span><span class="token punctuation">]</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>参数:</p><ul><li><p><code>-f</code>:</p><ul><li>指定你想要导入的数据，这里可以指定文件或者文件夹。如果指定的是文件夹，将会把文件夹中所有的后缀为txt与csv的文件进行批量导入。</li><li>例如: <code>-f filename.csv</code></li></ul></li><li><p><code>-fd</code>:</p><ul><li>指定一个目录来存放保存失败的行的文件，如果你没有指定这个参数，失败的文件将会被保存到源数据的目录中，然后文件名是源文件名加上<code>.failed</code>的后缀。</li><li>例如: <code>-fd ./failed/</code></li></ul></li><li><p><code>-aligned</code>:</p><ul><li>是否使用<code>aligned</code>接口？ 默认参数为<code>false</code>。</li><li>例如: <code>-aligned true</code></li></ul></li><li><p><code>-batch</code>:</p><ul><li>用于指定每一批插入的数据的点数。如果程序报了<code>org.apache.thrift.transport.TTransportException: Frame size larger than protect max size</code>这个错的话，就可以适当的调低这个参数。</li><li>例如: <code>-batch 100000</code>，<code>100000</code>是默认值。</li></ul></li><li><p><code>-tp</code>:</p><ul><li>用于指定时间精度，可选值包括<code>ms</code>（毫秒），<code>ns</code>（纳秒），<code>us</code>（微秒），默认值为<code>ms</code>。</li></ul></li><li><p><code>-typeInfer <srcTsDataType1=dstTsDataType1,srcTsDataType2=dstTsDataType2,...></code>:</p><ul><li>用于指定类型推断规则.</li><li><code>srcTsDataType</code> 包括 <code>boolean</code>,<code>int</code>,<code>long</code>,<code>float</code>,<code>double</code>,<code>NaN</code>.</li><li><code>dstTsDataType</code> 包括 <code>boolean</code>,<code>int</code>,<code>long</code>,<code>float</code>,<code>double</code>,<code>text</code>.</li><li>当<code>srcTsDataType</code>为<code>boolean</code>, <code>dstTsDataType</code>只能为<code>boolean</code>或<code>text</code>.</li><li>当<code>srcTsDataType</code>为<code>NaN</code>, <code>dstTsDataType</code>只能为<code>float</code>, <code>double</code>或<code>text</code>.</li><li>当<code>srcTsDataType</code>为数值类型, <code>dstTsDataType</code>的精度需要高于<code>srcTsDataType</code>.</li><li>例如:<code>-typeInfer boolean=text,float=double</code></li></ul></li><li><p><code>-linesPerFailedFile <int></code>:</p><ul><li>用于指定每个导入失败文件写入数据的行数，默认值为10000。</li><li>例如：<code>-linesPerFailedFile 1</code></li></ul></li></ul><h4 id="运行示例-2" tabindex="-1"><a class="header-anchor" href="#运行示例-2"><span>运行示例</span></a></h4><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code><span class="token comment"># Unix/OS X</span> |
| <span class="token operator">></span>tools/import-csv.sh <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-f</span> example-filename.csv <span class="token parameter variable">-fd</span> ./failed |
| <span class="token comment"># or</span> |
| <span class="token operator">></span>tools/import-csv.sh <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-f</span> example-filename.csv <span class="token parameter variable">-fd</span> ./failed |
| <span class="token comment"># or</span> |
| <span class="token operator">></span> tools<span class="token punctuation">\</span>import-csv.sh <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-f</span> example-filename.csv <span class="token parameter variable">-fd</span> ./failed <span class="token parameter variable">-tp</span> ns |
| <span class="token comment"># or</span> |
| <span class="token operator">></span> tools<span class="token punctuation">\</span>import-csv.sh <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-f</span> example-filename.csv <span class="token parameter variable">-fd</span> ./failed <span class="token parameter variable">-tp</span> ns <span class="token parameter variable">-typeInfer</span> <span class="token assign-left variable">boolean</span><span class="token operator">=</span>text,float<span class="token operator">=</span>double |
| <span class="token comment"># or</span> |
| <span class="token operator">></span> tools<span class="token punctuation">\</span>import-csv.sh <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-f</span> example-filename.csv <span class="token parameter variable">-fd</span> ./failed <span class="token parameter variable">-tp</span> ns <span class="token parameter variable">-typeInfer</span> <span class="token assign-left variable">boolean</span><span class="token operator">=</span>text,float<span class="token operator">=</span>double <span class="token parameter variable">-linesPerFailedFile</span> <span class="token number">10</span> |
| <span class="token comment"># Windows</span> |
| <span class="token operator">></span>tools<span class="token punctuation">\</span>import-csv.bat <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-f</span> example-filename.csv |
| <span class="token comment"># or</span> |
| <span class="token operator">></span>tools<span class="token punctuation">\</span>import-csv.bat <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-f</span> example-filename.csv <span class="token parameter variable">-fd</span> .<span class="token punctuation">\</span>failed |
| <span class="token comment"># or</span> |
| <span class="token operator">></span> tools<span class="token punctuation">\</span>import-csv.bat <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-f</span> example-filename.csv <span class="token parameter variable">-fd</span> .<span class="token punctuation">\</span>failed <span class="token parameter variable">-tp</span> ns |
| <span class="token comment"># or</span> |
| <span class="token operator">></span> tools<span class="token punctuation">\</span>import-csv.bat <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-f</span> example-filename.csv <span class="token parameter variable">-fd</span> .<span class="token punctuation">\</span>failed <span class="token parameter variable">-tp</span> ns <span class="token parameter variable">-typeInfer</span> <span class="token assign-left variable">boolean</span><span class="token operator">=</span>text,float<span class="token operator">=</span>double |
| <span class="token comment"># or</span> |
| <span class="token operator">></span> tools<span class="token punctuation">\</span>import-csv.bat <span class="token parameter variable">-h</span> <span class="token number">127.0</span>.0.1 <span class="token parameter variable">-p</span> <span class="token number">6667</span> <span class="token parameter variable">-u</span> root <span class="token parameter variable">-pw</span> root <span class="token parameter variable">-f</span> example-filename.csv <span class="token parameter variable">-fd</span> .<span class="token punctuation">\</span>failed <span class="token parameter variable">-tp</span> ns <span class="token parameter variable">-typeInfer</span> <span class="token assign-left variable">boolean</span><span class="token operator">=</span>text,float<span class="token operator">=</span>double <span class="token parameter variable">-linesPerFailedFile</span> <span class="token number">10</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h4 id="注意-1" tabindex="-1"><a class="header-anchor" href="#注意-1"><span>注意</span></a></h4><p>注意，在导入数据前，需要特殊处理下列的字符：</p><ol><li><code>,</code> :如果text类型的字段中包含<code>,</code>那么需要用<code>\</code>来进行转义。</li><li>你可以导入像<code>yyyy-MM-dd'T'HH:mm:ss</code>， <code>yyy-MM-dd HH:mm:ss</code>， 或者 <code>yyyy-MM-dd'T'HH:mm:ss.SSSZ</code>格式的时间。</li><li><code>Time</code>这一列应该放在第一列。</li></ol></div><!--[--><!----><!--]--><footer class="vp-page-meta"><div class="vp-meta-item edit-link"><a href="https://github.com/apache/iotdb-docs/edit/main/src/zh/UserGuide/V1.2.x/Tools-System/Import-Export-Tool.md" rel="noopener noreferrer" target="_blank" aria-label="发现错误？在 GitHub 上编辑此页" class="nav-link vp-meta-label"><!--[--><svg xmlns="http://www.w3.org/2000/svg" class="icon edit-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="edit icon"><path d="M430.818 653.65a60.46 60.46 0 0 1-50.96-93.281l71.69-114.012 7.773-10.365L816.038 80.138A60.46 60.46 0 0 1 859.225 62a60.46 60.46 0 0 1 43.186 18.138l43.186 43.186a60.46 60.46 0 0 1 0 86.373L588.879 565.55l-8.637 8.637-117.466 68.234a60.46 60.46 0 0 1-31.958 11.229z"></path><path d="M728.802 962H252.891A190.883 190.883 0 0 1 62.008 771.98V296.934a190.883 190.883 0 0 1 190.883-192.61h267.754a60.46 60.46 0 0 1 0 120.92H252.891a69.962 69.962 0 0 0-69.098 69.099V771.98a69.962 69.962 0 0 0 69.098 69.098h475.911A69.962 69.962 0 0 0 797.9 771.98V503.363a60.46 60.46 0 1 1 120.922 0V771.98A190.883 190.883 0 0 1 728.802 962z"></path></svg><!--]-->发现错误？在 GitHub 上编辑此页<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span><!----></a></div><div class="vp-meta-item git-info"><div class="update-time"><span class="vp-meta-label">上次编辑于: </span><!----></div><!----></div></footer><nav class="vp-page-nav"><a class="route-link nav-link prev" href="/zh/UserGuide/V1.2.x/Tools-System/Maintenance-Tool.html" aria-label="运维工具"><div class="hint"><span class="arrow start"></span>上一页</div><div class="link"><!---->运维工具</div></a><!----></nav><!----><!--[--><!----><!--]--><!--]--></main><!--]--><footer style="padding-bottom:2rem;"><span id="doc-version" style="display:none;">rel/1.2</span><p style="text-align:center;color:#909399;font-size:12px;margin:0 30px;">Copyright © 2024 The Apache Software Foundation.<br> Apache and the Apache feather logo are trademarks of The Apache Software Foundation</p><p style="text-align:center;margin-top:10px;color:#909399;font-size:12px;margin:0 30px;"><strong>Have a question?</strong> Connect with us on QQ, WeChat, or Slack. <a href="https://github.com/apache/iotdb/issues/1995">Join the community</a> now.</p></footer></div><!--]--><!--]--><!--[--><!----><!--]--><!--]--></div> |
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