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apache/iotdb-website/refs/heads/asf-site/./assets/Programming-Cpp-Native-API_apache.html-BcDIIMcS.js
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import{_ as n,c as l,b as a,o as e}from"./app-pmkzp6TS.js";const o={};function p(t,s){return e(),l("div",null,[...s[0]||(s[0]=[a(`<h1 id="c-原生接口" tabindex="-1"><a class="header-anchor" href="#c-原生接口"><span>C++ 原生接口</span></a></h1><h2 id="_1-依赖" tabindex="-1"><a class="header-anchor" href="#_1-依赖"><span>1. 依赖</span></a></h2><ul><li>Java 8+</li><li>Flex</li><li>Bison 2.7+</li><li>Boost 1.56+</li><li>OpenSSL 1.0+</li><li>GCC 5.5.0+</li></ul><h2 id="_2-安装" tabindex="-1"><a class="header-anchor" href="#_2-安装"><span>2. 安装</span></a></h2><h3 id="_2-1-安装相关依赖" tabindex="-1"><a class="header-anchor" href="#_2-1-安装相关依赖"><span>2.1 安装相关依赖</span></a></h3><ul><li><strong>MAC</strong></li></ul><ol><li><p>安装 Bison ：</p><p>使用下面 brew 命令安装 bison 版本：</p><div class="language-shell line-numbers-mode" data-highlighter="shiki" data-ext="shell" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-shell"><span class="line"><span style="color:#61AFEF;">brew</span><span style="color:#98C379;"> install</span><span style="color:#98C379;"> bison</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div></div></div></li><li><p>安装 Boost ：确保安装最新的 Boost 版本。</p><div class="language-shell line-numbers-mode" data-highlighter="shiki" data-ext="shell" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-shell"><span class="line"><span style="color:#61AFEF;">brew</span><span style="color:#98C379;"> install</span><span style="color:#98C379;"> boost</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div></div></div></li><li><p>检查 OpenSSL ：确保 openssl 库已安装，默认的 openssl 头文件路径为&quot;/usr/local/opt/openssl/include&quot;</p><p>如果在编译过程中出现找不到 openssl 的错误，尝试添加<code>-Dopenssl.include.dir=&quot;&quot;</code></p></li></ol><ul><li><p><strong>Ubuntu 16.04+ 或其他 Debian 系列</strong></p><p>使用以下命令安装所赖：</p><div class="language-shell line-numbers-mode" data-highlighter="shiki" data-ext="shell" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-shell"><span class="line"><span style="color:#61AFEF;">sudo</span><span style="color:#98C379;"> apt-get</span><span style="color:#98C379;"> update</span></span>
<span class="line"><span style="color:#61AFEF;">sudo</span><span style="color:#98C379;"> apt-get</span><span style="color:#98C379;"> install</span><span style="color:#98C379;"> gcc</span><span style="color:#98C379;"> g++</span><span style="color:#98C379;"> bison</span><span style="color:#98C379;"> flex</span><span style="color:#98C379;"> libboost-all-dev</span><span style="color:#98C379;"> libssl-dev</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div></div></div></li><li><p><strong>CentOS 7.7+/Fedora/Rocky Linux 或其他 Red-hat 系列</strong></p><p>使用 yum 命令安装依赖：</p><div class="language-shell line-numbers-mode" data-highlighter="shiki" data-ext="shell" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-shell"><span class="line"><span style="color:#61AFEF;">sudo</span><span style="color:#98C379;"> yum</span><span style="color:#98C379;"> update</span></span>
<span class="line"><span style="color:#61AFEF;">sudo</span><span style="color:#98C379;"> yum</span><span style="color:#98C379;"> install</span><span style="color:#98C379;"> gcc</span><span style="color:#98C379;"> gcc-c++</span><span style="color:#98C379;"> boost-devel</span><span style="color:#98C379;"> bison</span><span style="color:#98C379;"> flex</span><span style="color:#98C379;"> openssl-devel</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div></div></div></li><li><p><strong>Windows</strong></p></li></ul><ol><li><p>构建编译环境</p><ul><li>安装 MS Visual Studio（推荐安装 2019+ 版本）：安装时需要勾选 Visual Studio C/C++ IDE and compiler(supporting CMake, Clang, MinGW)</li><li>下载安装 <a href="https://cmake.org/download/" target="_blank" rel="noopener noreferrer">CMake</a> 。</li></ul></li><li><p>下载安装 Flex、Bison</p><ul><li>下载 <a href="https://sourceforge.net/projects/winflexbison/" target="_blank" rel="noopener noreferrer">Win_Flex_Bison</a></li><li>下载后需要将可执行文件重命名为 flex.exe 和 bison.exe 以保证编译时能够被找到，添加可执行文件的目录到 PATH 环境变量中</li></ul></li><li><p>安装 Boost 库</p><ul><li>下载 <a href="https://www.boost.org/users/download/" target="_blank" rel="noopener noreferrer">Boost</a></li><li>本地编译 Boost ：依次执行 bootstrap.bat 和 b2.exe</li><li>添加 Boost 安装目录到 PATH 环境变量中，例如 <code>C:\\Program Files (x86)\\boost_1_78_0</code></li></ul></li><li><p>安装 OpenSSL</p><ul><li>下载安装 <a href="http://slproweb.com/products/Win32OpenSSL.html" target="_blank" rel="noopener noreferrer">OpenSSL</a></li><li>添加 OpenSSL 下的 include 目录到 PATH 环境变量中</li></ul></li></ol><h3 id="_2-2-执行编译" tabindex="-1"><a class="header-anchor" href="#_2-2-执行编译"><span>2.2 执行编译</span></a></h3><p>从 git 克隆源代码:</p><div class="language-shell line-numbers-mode" data-highlighter="shiki" data-ext="shell" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-shell"><span class="line"><span style="color:#61AFEF;">git</span><span style="color:#98C379;"> clone</span><span style="color:#98C379;"> https://github.com/apache/iotdb.git</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div></div></div><p>默认的主分支是 master 分支，如果你想使用某个发布版本，请切换分支 (如 2.0.6 版本):</p><div class="language-shell line-numbers-mode" data-highlighter="shiki" data-ext="shell" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-shell"><span class="line"><span style="color:#61AFEF;">git</span><span style="color:#98C379;"> checkout</span><span style="color:#98C379;"> rc/2.0.6</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div></div></div><p>注意：请勿使用高版本客户端连接低版本服务。</p><p>在 IoTDB 根目录下执行 maven 编译:</p><ul><li><p>Mac 或 glibc 版本 &gt;= 2.32 的 Linux</p><div class="language-shell line-numbers-mode" data-highlighter="shiki" data-ext="shell" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-shell"><span class="line"><span style="color:#61AFEF;">./mvnw</span><span style="color:#98C379;"> clean</span><span style="color:#98C379;"> package</span><span style="color:#D19A66;"> -pl</span><span style="color:#98C379;"> example/client-cpp-example</span><span style="color:#D19A66;"> -am</span><span style="color:#D19A66;"> -DskipTests</span><span style="color:#D19A66;"> -P</span><span style="color:#98C379;"> with-cpp</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div></div></div></li><li><p>glibc 版本 &gt;= 2.31 的 Linux</p><div class="language-shell line-numbers-mode" data-highlighter="shiki" data-ext="shell" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-shell"><span class="line"><span style="color:#61AFEF;">./mvnw</span><span style="color:#98C379;"> clean</span><span style="color:#98C379;"> package</span><span style="color:#D19A66;"> -pl</span><span style="color:#98C379;"> example/client-cpp-example</span><span style="color:#D19A66;"> -am</span><span style="color:#D19A66;"> -DskipTests</span><span style="color:#D19A66;"> -P</span><span style="color:#98C379;"> with-cpp</span><span style="color:#D19A66;"> -Diotdb-tools-thrift.version=0.14.1.1-old-glibc-SNAPSHOT</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div></div></div></li><li><p>glibc 版本 &gt;= 2.17 的 Linux</p><div class="language-shell line-numbers-mode" data-highlighter="shiki" data-ext="shell" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-shell"><span class="line"><span style="color:#61AFEF;">./mvnw</span><span style="color:#98C379;"> clean</span><span style="color:#98C379;"> package</span><span style="color:#D19A66;"> -pl</span><span style="color:#98C379;"> example/client-cpp-example</span><span style="color:#D19A66;"> -am</span><span style="color:#D19A66;"> -DskipTests</span><span style="color:#D19A66;"> -P</span><span style="color:#98C379;"> with-cpp</span><span style="color:#D19A66;"> -Diotdb-tools-thrift.version=0.14.1.1-glibc223-SNAPSHOT</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div></div></div></li><li><p>使用 Visual Studio 2022 的 Windows</p><div class="language-batch line-numbers-mode" data-highlighter="shiki" data-ext="batch" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-batch"><span class="line"><span style="color:#ABB2BF;">.\\mvnw.cmd clean package -pl example/client-cpp-example -am -DskipTests -P with-cpp</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div></div></div></li><li><p>使用 Visual Studio 2019 的 Windows</p><div class="language-batch line-numbers-mode" data-highlighter="shiki" data-ext="batch" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-batch"><span class="line"><span style="color:#ABB2BF;">.\\mvnw.cmd clean package -pl example/client-cpp-example -am -DskipTests -P with-cpp -Dcmake.generator=</span><span style="color:#98C379;">&quot;Visual Studio 16 2019&quot;</span><span style="color:#ABB2BF;"> -Diotdb-tools-thrift.version=0.14.1.1-msvc142-SNAPSHOT</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div></div></div><ul><li>如果没有将 Boost 库地址加入 PATH 环境变量，在编译命令中还需添加相关参数，例如：<code>-DboostIncludeDir=&quot;C:\\Program Files (x86)\\boost_1_78_0&quot; -DboostLibraryDir=&quot;C:\\Program Files (x86)\\boost_1_78_0\\stage\\lib&quot;</code></li></ul></li></ul><p>编译成功后，打包好的库文件位于 <code>iotdb-client/client-cpp/target</code> 中，同时可以在 <code>example/client-cpp-example/target</code> 下找到编译好的示例程序。</p><h3 id="_2-3-编译-q-a" tabindex="-1"><a class="header-anchor" href="#_2-3-编译-q-a"><span>2.3 编译 Q&amp;A</span></a></h3><p>Q：Linux 上的环境有哪些要求呢？</p><p>A：</p><ul><li>已知依赖的 glibc (x86_64 版本) 最低版本要求为 2.17，GCC 最低版本为 5.5</li><li>已知依赖的 glibc (ARM 版本) 最低版本要求为 2.31，GCC 最低版本为 10.2</li><li>如果不满足上面的要求，可以尝试自己本地编译 Thrift <ul><li>下载 <a href="https://github.com/apache/iotdb-bin-resources/tree/iotdb-tools-thrift-v0.14.1.0/iotdb-tools-thrift" target="_blank" rel="noopener noreferrer">https://github.com/apache/iotdb-bin-resources/tree/iotdb-tools-thrift-v0.14.1.0/iotdb-tools-thrift</a> 这里的代码</li><li>执行 <code>./mvnw clean install</code></li><li>回到 iotdb 代码目录执行 <code>./mvnw clean package -pl example/client-cpp-example -am -DskipTests -P with-cpp</code></li></ul></li></ul><p>Q：Linux 编译报错<code>undefined reference to &#39;_libc_sinle_thread&#39;</code>如何处理？</p><p>A：</p><ul><li>该问题是用于默认的预编译 Thrift 依赖了过高的 glibc 版本导致的</li><li>可以尝试在编译的 maven 命令中增加 <code>-Diotdb-tools-thrift.version=0.14.1.1-glibc223-SNAPSHOT</code> 或者 <code>-Diotdb-tools-thrift.version=0.14.1.1-old-glibc-SNAPSHOT</code></li></ul><p>Q：如果在 Windows 上需要使用 Visual Studio 2017 或更早版本进行编译，要怎么做？</p><p>A:</p><ul><li>可以尝试自己本地编译 Thrift 后再进行客户端的编译 <ul><li>下载 <a href="https://github.com/apache/iotdb-bin-resources/tree/iotdb-tools-thrift-v0.14.1.0/iotdb-tools-thrift" target="_blank" rel="noopener noreferrer">https://github.com/apache/iotdb-bin-resources/tree/iotdb-tools-thrift-v0.14.1.0/iotdb-tools-thrift</a> 这里的代码</li><li>执行 <code>.\\mvnw.cmd clean install</code></li><li>回到 iotdb 代码目录执行 <code>.\\mvnw.cmd clean package -pl example/client-cpp-example -am -DskipTests -P with-cpp -Dcmake.generator=&quot;Visual Studio 15 2017&quot;</code></li></ul></li></ul><p>Q: Windows 上使用 Visual Studio 进行编译时出现乱码，如何解决？</p><p>A:</p><ul><li>该问题是由于项目整体使用 utf-8 编码，而编译用到的一些 windows 系统文件编码不是 utf-8（系统编码默认跟随地区，在中国为 GBK）</li><li>可以在控制面板中更改系统区域设置，具体操作方法为：打开控制面板 -&gt; 时钟和区域 -&gt; 区域，切换到管理选项卡，在 &quot;非Unicode程序的语言&quot; 下，选择更改系统区域设置，勾选 <code>Beta版：使用Unicode UTF-8提供全球语言支持</code> 后重启电脑。（细节可能随windows版本有差异，可在网上寻找详细教程）</li><li>注意，修改 windows 系统编码后可能会导致一些其他使用 GBK 编码的程序出现乱码，将系统区域改回后可复原，请自行斟酌。</li></ul><h2 id="_3-使用方式" tabindex="-1"><a class="header-anchor" href="#_3-使用方式"><span>3. 使用方式</span></a></h2><h3 id="_3-1-tablesession-类" tabindex="-1"><a class="header-anchor" href="#_3-1-tablesession-类"><span>3.1 TableSession 类</span></a></h3><p>C++ 客户端的操作均通过 TableSession 类进行，下面将给出 TableSession 接口中定义的方法说明。</p><h4 id="_3-1-1-方法列表" tabindex="-1"><a class="header-anchor" href="#_3-1-1-方法列表"><span>3.1.1 方法列表</span></a></h4><ol><li><code>insert(Tablet&amp; tablet, bool sorted = false)</code>，将一个包含时间序列数据的Tablet对象插入到数据库中，sorted参数指明tablet中的行是否已按时间排序。</li><li><code>executeNonQueryStatement(string&amp; sql)</code>，执行非查询SQL语句，如DDL(数据定义语言)或DML(数据操作语言)命令。</li><li><code>executeQueryStatement(string&amp; sql)</code>，执行查询SQL语句，并返回包含查询结果的SessionDataSet对象，可选timeoutInMs参数指示超时返回时间。 <ul><li>注意：调用 <code>SessionDataSet::next()</code> 获取查询结果行时，必须将返回的 <code>std::shared_ptr&lt;RowRecord&gt;</code> 对象存储在局部作用域变量中（例如：<code>auto row = dataSet-&gt;next();</code>），以确保数据生命周期有效。若直接通过 <code>.get()</code> 或裸指针访问（如 <code>dataSet-&gt;next().get()</code>），将导致智能指针引用计数归零，数据被立即释放，后续访问将引发未定义行为。</li></ul></li><li><code>open(bool enableRPCCompression = false)</code>，开启连接，并决定是否启用RPC压缩(客户端状态须与服务端一致，默认不开启)。</li><li><code>close()</code>，关闭连接。</li></ol><h4 id="_3-1-2-接口展示" tabindex="-1"><a class="header-anchor" href="#_3-1-2-接口展示"><span>3.1.2 接口展示</span></a></h4><div class="language-cpp line-numbers-mode" data-highlighter="shiki" data-ext="cpp" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-cpp"><span class="line"><span style="color:#C678DD;">class</span><span style="color:#E5C07B;"> TableSession</span><span style="color:#ABB2BF;"> {</span></span>
<span class="line"><span style="color:#C678DD;">private:</span></span>
<span class="line"><span style="color:#ABB2BF;"> Session</span><span style="color:#C678DD;">*</span><span style="color:#ABB2BF;"> session;</span></span>
<span class="line"><span style="color:#C678DD;">public:</span></span>
<span class="line"><span style="color:#61AFEF;"> TableSession</span><span style="color:#ABB2BF;">(</span><span style="color:#E5C07B;">Session</span><span style="color:#C678DD;">*</span><span style="color:#E06C75;font-style:italic;"> session</span><span style="color:#ABB2BF;">) {</span></span>
<span class="line"><span style="color:#E5C07B;"> this</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#E06C75;">session</span><span style="color:#C678DD;"> =</span><span style="color:#ABB2BF;"> session;</span></span>
<span class="line"><span style="color:#ABB2BF;"> }</span></span>
<span class="line"><span style="color:#C678DD;"> void</span><span style="color:#61AFEF;"> insert</span><span style="color:#ABB2BF;">(</span><span style="color:#E5C07B;">Tablet</span><span style="color:#C678DD;">&amp;</span><span style="color:#E06C75;font-style:italic;"> tablet</span><span style="color:#ABB2BF;">, </span><span style="color:#C678DD;">bool</span><span style="color:#E06C75;font-style:italic;"> sorted</span><span style="color:#C678DD;"> =</span><span style="color:#D19A66;"> false</span><span style="color:#ABB2BF;">);</span></span>
<span class="line"><span style="color:#C678DD;"> void</span><span style="color:#61AFEF;"> executeNonQueryStatement</span><span style="color:#ABB2BF;">(</span><span style="color:#C678DD;">const</span><span style="color:#ABB2BF;"> std::</span><span style="color:#E5C07B;">string</span><span style="color:#C678DD;">&amp;</span><span style="color:#E06C75;font-style:italic;"> sql</span><span style="color:#ABB2BF;">);</span></span>
<span class="line"><span style="color:#E5C07B;"> unique_ptr</span><span style="color:#ABB2BF;">&lt;</span><span style="color:#E5C07B;">SessionDataSet</span><span style="color:#ABB2BF;">&gt; </span><span style="color:#61AFEF;">executeQueryStatement</span><span style="color:#ABB2BF;">(</span><span style="color:#C678DD;">const</span><span style="color:#ABB2BF;"> std::</span><span style="color:#E5C07B;">string</span><span style="color:#C678DD;">&amp;</span><span style="color:#E06C75;font-style:italic;"> sql</span><span style="color:#ABB2BF;">);</span></span>
<span class="line"><span style="color:#E5C07B;"> unique_ptr</span><span style="color:#ABB2BF;">&lt;</span><span style="color:#E5C07B;">SessionDataSet</span><span style="color:#ABB2BF;">&gt; </span><span style="color:#61AFEF;">executeQueryStatement</span><span style="color:#ABB2BF;">(</span><span style="color:#C678DD;">const</span><span style="color:#ABB2BF;"> std::</span><span style="color:#E5C07B;">string</span><span style="color:#C678DD;">&amp;</span><span style="color:#E06C75;font-style:italic;"> sql</span><span style="color:#ABB2BF;">, </span><span style="color:#C678DD;">int64_t</span><span style="color:#E06C75;font-style:italic;"> timeoutInMs</span><span style="color:#ABB2BF;">);</span></span>
<span class="line"><span style="color:#E5C07B;"> string</span><span style="color:#61AFEF;"> getDatabase</span><span style="color:#ABB2BF;">();</span><span style="color:#7F848E;font-style:italic;"> //获取当前选择的database，可由executeNonQueryStatement代替</span></span>
<span class="line"><span style="color:#C678DD;"> void</span><span style="color:#61AFEF;"> open</span><span style="color:#ABB2BF;">(</span><span style="color:#C678DD;">bool</span><span style="color:#E06C75;font-style:italic;"> enableRPCCompression</span><span style="color:#C678DD;"> =</span><span style="color:#D19A66;"> false</span><span style="color:#ABB2BF;">);</span></span>
<span class="line"><span style="color:#C678DD;"> void</span><span style="color:#61AFEF;"> close</span><span style="color:#ABB2BF;">();</span></span>
<span class="line"><span style="color:#ABB2BF;">};</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><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><h3 id="_3-2-tablesessionbuilder-类" tabindex="-1"><a class="header-anchor" href="#_3-2-tablesessionbuilder-类"><span>3.2 TableSessionBuilder 类</span></a></h3><p>TableSessionBuilder类是一个构建器，用于配置和创建TableSession类的实例，通过它可以在创建实例时方便地设置连接参数、查询参数等。</p><h4 id="_3-2-1-使用示例" tabindex="-1"><a class="header-anchor" href="#_3-2-1-使用示例"><span>3.2.1 使用示例</span></a></h4><div class="language-cpp line-numbers-mode" data-highlighter="shiki" data-ext="cpp" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-cpp"><span class="line"><span style="color:#7F848E;font-style:italic;">//设置连接的IP、端口、用户名、密码</span></span>
<span class="line"><span style="color:#7F848E;font-style:italic;">//设置的顺序任意，确保最后调用build()即可，创建的实例默认已进行open()连接操作</span></span>
<span class="line"><span style="color:#ABB2BF;">session </span><span style="color:#C678DD;">=</span><span style="color:#ABB2BF;"> (</span><span style="color:#C678DD;">new</span><span style="color:#61AFEF;"> TableSessionBuilder</span><span style="color:#ABB2BF;">())</span></span>
<span class="line"><span style="color:#C678DD;"> -&gt;</span><span style="color:#61AFEF;">host</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;127.0.0.1&quot;</span><span style="color:#ABB2BF;">)</span></span>
<span class="line"><span style="color:#C678DD;"> -&gt;</span><span style="color:#61AFEF;">rpcPort</span><span style="color:#ABB2BF;">(</span><span style="color:#D19A66;">6667</span><span style="color:#ABB2BF;">)</span></span>
<span class="line"><span style="color:#C678DD;"> -&gt;</span><span style="color:#61AFEF;">username</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;root&quot;</span><span style="color:#ABB2BF;">)</span></span>
<span class="line"><span style="color:#C678DD;"> -&gt;</span><span style="color:#61AFEF;">password</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;root&quot;</span><span style="color:#ABB2BF;">)</span></span>
<span class="line"><span style="color:#C678DD;"> -&gt;</span><span style="color:#61AFEF;">build</span><span style="color:#ABB2BF;">();</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><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="_3-2-2-可设置的参数列表" tabindex="-1"><a class="header-anchor" href="#_3-2-2-可设置的参数列表"><span>3.2.2 可设置的参数列表</span></a></h4><table><thead><tr><th style="text-align:center;"><strong>参数名</strong></th><th style="text-align:center;"><strong>描述</strong></th><th style="text-align:center;"><strong>默认值</strong></th></tr></thead><tbody><tr><td style="text-align:center;">host</td><td style="text-align:center;">设置连接的节点IP</td><td style="text-align:center;">&quot;127.0.0.1&quot; (&quot;localhost&quot;)</td></tr><tr><td style="text-align:center;">rpcPort</td><td style="text-align:center;">设置连接的节点端口</td><td style="text-align:center;">6667</td></tr><tr><td style="text-align:center;">username</td><td style="text-align:center;">设置连接的用户名</td><td style="text-align:center;">&quot;root&quot;</td></tr><tr><td style="text-align:center;">password</td><td style="text-align:center;">设置连接密码</td><td style="text-align:center;">&quot;root&quot;</td></tr><tr><td style="text-align:center;">zoneId</td><td style="text-align:center;">设置时区相关的ZoneId</td><td style="text-align:center;">&quot;&quot;</td></tr><tr><td style="text-align:center;">fetchSize</td><td style="text-align:center;">设置查询结果的获取大小</td><td style="text-align:center;">10000</td></tr><tr><td style="text-align:center;">database</td><td style="text-align:center;">设置目标数据库名称</td><td style="text-align:center;">&quot;&quot;</td></tr></tbody></table><h2 id="_4-示例代码" tabindex="-1"><a class="header-anchor" href="#_4-示例代码"><span>4. 示例代码</span></a></h2><p>示例工程源代码：</p><ul><li><code>example/client-cpp-example/src/TableModelSessionExample.cpp</code> : <a href="https://github.com/apache/iotdb/blob/master/example/client-cpp-example/src/TableModelSessionExample.cpp" target="_blank" rel="noopener noreferrer">TableModelSessionExample</a></li></ul><p>编译成功后，示例代码工程位于 <code>example/client-cpp-example/target</code></p><div class="language-cpp line-numbers-mode" data-highlighter="shiki" data-ext="cpp" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-cpp"><span class="line"><span style="color:#C678DD;">#include</span><span style="color:#98C379;"> &quot;TableSession.h&quot;</span></span>
<span class="line"><span style="color:#C678DD;">#include</span><span style="color:#98C379;"> &quot;TableSessionBuilder.h&quot;</span></span>
<span class="line"></span>
<span class="line"><span style="color:#C678DD;">using</span><span style="color:#C678DD;"> namespace</span><span style="color:#E5C07B;"> std</span><span style="color:#ABB2BF;">;</span></span>
<span class="line"></span>
<span class="line"><span style="color:#ABB2BF;">shared_ptr</span><span style="color:#C678DD;">&lt;</span><span style="color:#ABB2BF;">TableSession</span><span style="color:#C678DD;">&gt;</span><span style="color:#ABB2BF;"> session;</span></span>
<span class="line"></span>
<span class="line"><span style="color:#C678DD;">void</span><span style="color:#61AFEF;"> insertRelationalTablet</span><span style="color:#ABB2BF;">() {</span></span>
<span class="line"></span>
<span class="line"><span style="color:#ABB2BF;"> vector</span><span style="color:#C678DD;">&lt;</span><span style="color:#ABB2BF;">pair</span><span style="color:#C678DD;">&lt;</span><span style="color:#ABB2BF;">string, TSDataType::TSDataType</span><span style="color:#C678DD;">&gt;&gt;</span><span style="color:#ABB2BF;"> schemaList {</span></span>
<span class="line"><span style="color:#61AFEF;"> make_pair</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;region_id&quot;</span><span style="color:#ABB2BF;">, TSDataType::TEXT),</span></span>
<span class="line"><span style="color:#61AFEF;"> make_pair</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;plant_id&quot;</span><span style="color:#ABB2BF;">, TSDataType::TEXT),</span></span>
<span class="line"><span style="color:#61AFEF;"> make_pair</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;device_id&quot;</span><span style="color:#ABB2BF;">, TSDataType::TEXT),</span></span>
<span class="line"><span style="color:#61AFEF;"> make_pair</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;model&quot;</span><span style="color:#ABB2BF;">, TSDataType::TEXT),</span></span>
<span class="line"><span style="color:#61AFEF;"> make_pair</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;temperature&quot;</span><span style="color:#ABB2BF;">, TSDataType::FLOAT),</span></span>
<span class="line"><span style="color:#61AFEF;"> make_pair</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;humidity&quot;</span><span style="color:#ABB2BF;">, TSDataType::DOUBLE)</span></span>
<span class="line"><span style="color:#ABB2BF;"> };</span></span>
<span class="line"><span style="color:#ABB2BF;"> </span></span>
<span class="line"><span style="color:#ABB2BF;"> vector</span><span style="color:#C678DD;">&lt;</span><span style="color:#ABB2BF;">ColumnCategory</span><span style="color:#C678DD;">&gt;</span><span style="color:#ABB2BF;"> columnTypes </span><span style="color:#C678DD;">=</span><span style="color:#ABB2BF;"> {</span></span>
<span class="line"><span style="color:#ABB2BF;"> ColumnCategory::TAG,</span></span>
<span class="line"><span style="color:#ABB2BF;"> ColumnCategory::TAG,</span></span>
<span class="line"><span style="color:#ABB2BF;"> ColumnCategory::TAG,</span></span>
<span class="line"><span style="color:#ABB2BF;"> ColumnCategory::ATTRIBUTE,</span></span>
<span class="line"><span style="color:#ABB2BF;"> ColumnCategory::FIELD,</span></span>
<span class="line"><span style="color:#ABB2BF;"> ColumnCategory::FIELD</span></span>
<span class="line"><span style="color:#ABB2BF;"> };</span></span>
<span class="line"><span style="color:#ABB2BF;"> </span></span>
<span class="line"><span style="color:#ABB2BF;"> Tablet </span><span style="color:#61AFEF;">tablet</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;table1&quot;</span><span style="color:#ABB2BF;">, schemaList, columnTypes, </span><span style="color:#D19A66;">100</span><span style="color:#ABB2BF;">);</span></span>
<span class="line"><span style="color:#ABB2BF;"> </span></span>
<span class="line"><span style="color:#C678DD;"> for</span><span style="color:#ABB2BF;"> (</span><span style="color:#C678DD;">int</span><span style="color:#ABB2BF;"> row </span><span style="color:#C678DD;">=</span><span style="color:#D19A66;"> 0</span><span style="color:#ABB2BF;">; row </span><span style="color:#C678DD;">&lt;</span><span style="color:#D19A66;"> 100</span><span style="color:#ABB2BF;">; row</span><span style="color:#C678DD;">++</span><span style="color:#ABB2BF;">) {</span></span>
<span class="line"><span style="color:#C678DD;"> int</span><span style="color:#ABB2BF;"> rowIndex </span><span style="color:#C678DD;">=</span><span style="color:#E5C07B;"> tablet</span><span style="color:#ABB2BF;">.</span><span style="color:#E06C75;">rowSize</span><span style="color:#C678DD;">++</span><span style="color:#ABB2BF;">;</span></span>
<span class="line"><span style="color:#E5C07B;"> tablet</span><span style="color:#ABB2BF;">.</span><span style="color:#E06C75;">timestamps</span><span style="color:#ABB2BF;">[rowIndex] </span><span style="color:#C678DD;">=</span><span style="color:#ABB2BF;"> row;</span></span>
<span class="line"><span style="color:#ABB2BF;"> </span></span>
<span class="line"><span style="color:#7F848E;font-style:italic;"> // 使用基于索引的 API 比通过列名查找更高效</span></span>
<span class="line"><span style="color:#7F848E;font-style:italic;"> // 推荐写法：tablet.addValue(0, rowIndex, &quot;1&quot;);</span></span>
<span class="line"><span style="color:#7F848E;font-style:italic;"> // 避免写法：tablet.addValue(&quot;region_id&quot;, rowIndex, &quot;1&quot;);</span></span>
<span class="line"><span style="color:#E5C07B;"> tablet</span><span style="color:#ABB2BF;">.</span><span style="color:#61AFEF;">addValue</span><span style="color:#ABB2BF;">(</span><span style="color:#D19A66;">0</span><span style="color:#ABB2BF;">, rowIndex, </span><span style="color:#98C379;">&quot;1&quot;</span><span style="color:#ABB2BF;">);</span><span style="color:#7F848E;font-style:italic;"> // region_id</span></span>
<span class="line"><span style="color:#E5C07B;"> tablet</span><span style="color:#ABB2BF;">.</span><span style="color:#61AFEF;">addValue</span><span style="color:#ABB2BF;">(</span><span style="color:#D19A66;">1</span><span style="color:#ABB2BF;">, rowIndex, </span><span style="color:#98C379;">&quot;5&quot;</span><span style="color:#ABB2BF;">);</span><span style="color:#7F848E;font-style:italic;"> // plant_id</span></span>
<span class="line"><span style="color:#E5C07B;"> tablet</span><span style="color:#ABB2BF;">.</span><span style="color:#61AFEF;">addValue</span><span style="color:#ABB2BF;">(</span><span style="color:#D19A66;">2</span><span style="color:#ABB2BF;">, rowIndex, </span><span style="color:#98C379;">&quot;3&quot;</span><span style="color:#ABB2BF;">);</span><span style="color:#7F848E;font-style:italic;"> // device_id</span></span>
<span class="line"><span style="color:#E5C07B;"> tablet</span><span style="color:#ABB2BF;">.</span><span style="color:#61AFEF;">addValue</span><span style="color:#ABB2BF;">(</span><span style="color:#D19A66;">3</span><span style="color:#ABB2BF;">, rowIndex, </span><span style="color:#98C379;">&quot;A&quot;</span><span style="color:#ABB2BF;">);</span><span style="color:#7F848E;font-style:italic;"> // model</span></span>
<span class="line"><span style="color:#E5C07B;"> tablet</span><span style="color:#ABB2BF;">.</span><span style="color:#61AFEF;">addValue</span><span style="color:#ABB2BF;">(</span><span style="color:#D19A66;">4</span><span style="color:#ABB2BF;">, rowIndex, </span><span style="color:#D19A66;">37.6</span><span style="color:#E06C75;">F</span><span style="color:#ABB2BF;">);</span><span style="color:#7F848E;font-style:italic;"> // temperature</span></span>
<span class="line"><span style="color:#E5C07B;"> tablet</span><span style="color:#ABB2BF;">.</span><span style="color:#61AFEF;">addValue</span><span style="color:#ABB2BF;">(</span><span style="color:#D19A66;">5</span><span style="color:#ABB2BF;">, rowIndex, </span><span style="color:#D19A66;">111.1</span><span style="color:#ABB2BF;">);</span><span style="color:#7F848E;font-style:italic;"> // humidity</span></span>
<span class="line"><span style="color:#C678DD;"> if</span><span style="color:#ABB2BF;"> (</span><span style="color:#E5C07B;">tablet</span><span style="color:#ABB2BF;">.</span><span style="color:#E06C75;">rowSize</span><span style="color:#C678DD;"> ==</span><span style="color:#E5C07B;"> tablet</span><span style="color:#ABB2BF;">.</span><span style="color:#E06C75;">maxRowNumber</span><span style="color:#ABB2BF;">) {</span></span>
<span class="line"><span style="color:#E5C07B;"> session</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">insert</span><span style="color:#ABB2BF;">(tablet);</span></span>
<span class="line"><span style="color:#E5C07B;"> tablet</span><span style="color:#ABB2BF;">.</span><span style="color:#61AFEF;">reset</span><span style="color:#ABB2BF;">();</span></span>
<span class="line"><span style="color:#ABB2BF;"> }</span></span>
<span class="line"><span style="color:#ABB2BF;"> }</span></span>
<span class="line"><span style="color:#ABB2BF;"> </span></span>
<span class="line"><span style="color:#C678DD;"> if</span><span style="color:#ABB2BF;"> (</span><span style="color:#E5C07B;">tablet</span><span style="color:#ABB2BF;">.</span><span style="color:#E06C75;">rowSize</span><span style="color:#C678DD;"> !=</span><span style="color:#D19A66;"> 0</span><span style="color:#ABB2BF;">) {</span></span>
<span class="line"><span style="color:#E5C07B;"> session</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">insert</span><span style="color:#ABB2BF;">(tablet);</span></span>
<span class="line"><span style="color:#E5C07B;"> tablet</span><span style="color:#ABB2BF;">.</span><span style="color:#61AFEF;">reset</span><span style="color:#ABB2BF;">();</span></span>
<span class="line"><span style="color:#ABB2BF;"> }</span></span>
<span class="line"><span style="color:#ABB2BF;">}</span></span>
<span class="line"></span>
<span class="line"><span style="color:#C678DD;">void</span><span style="color:#61AFEF;"> Output</span><span style="color:#ABB2BF;">(</span><span style="color:#E5C07B;">unique_ptr</span><span style="color:#ABB2BF;">&lt;</span><span style="color:#E5C07B;">SessionDataSet</span><span style="color:#ABB2BF;">&gt; </span><span style="color:#C678DD;">&amp;</span><span style="color:#E06C75;font-style:italic;">dataSet</span><span style="color:#ABB2BF;">) {</span></span>
<span class="line"><span style="color:#C678DD;"> for</span><span style="color:#ABB2BF;"> (</span><span style="color:#C678DD;">const</span><span style="color:#ABB2BF;"> string </span><span style="color:#56B6C2;">&amp;</span><span style="color:#ABB2BF;">name: </span><span style="color:#E5C07B;">dataSet</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">getColumnNames</span><span style="color:#ABB2BF;">()) {</span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#ABB2BF;"> name </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#98C379;"> &quot; &quot;</span><span style="color:#ABB2BF;">;</span></span>
<span class="line"><span style="color:#ABB2BF;"> }</span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#C678DD;"> while</span><span style="color:#ABB2BF;"> (</span><span style="color:#E5C07B;">dataSet</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">hasNext</span><span style="color:#ABB2BF;">()) {</span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#E5C07B;"> dataSet</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">next</span><span style="color:#ABB2BF;">()-&gt;</span><span style="color:#61AFEF;">toString</span><span style="color:#ABB2BF;">();</span></span>
<span class="line"><span style="color:#ABB2BF;"> }</span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#ABB2BF;">}</span></span>
<span class="line"></span>
<span class="line"><span style="color:#C678DD;">void</span><span style="color:#61AFEF;"> OutputWithType</span><span style="color:#ABB2BF;">(</span><span style="color:#E5C07B;">unique_ptr</span><span style="color:#ABB2BF;">&lt;</span><span style="color:#E5C07B;">SessionDataSet</span><span style="color:#ABB2BF;">&gt; </span><span style="color:#C678DD;">&amp;</span><span style="color:#E06C75;font-style:italic;">dataSet</span><span style="color:#ABB2BF;">) {</span></span>
<span class="line"><span style="color:#C678DD;"> for</span><span style="color:#ABB2BF;"> (</span><span style="color:#C678DD;">const</span><span style="color:#ABB2BF;"> string </span><span style="color:#56B6C2;">&amp;</span><span style="color:#ABB2BF;">name: </span><span style="color:#E5C07B;">dataSet</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">getColumnNames</span><span style="color:#ABB2BF;">()) {</span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#ABB2BF;"> name </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#98C379;"> &quot; &quot;</span><span style="color:#ABB2BF;">;</span></span>
<span class="line"><span style="color:#ABB2BF;"> }</span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#C678DD;"> for</span><span style="color:#ABB2BF;"> (</span><span style="color:#C678DD;">const</span><span style="color:#ABB2BF;"> string </span><span style="color:#56B6C2;">&amp;</span><span style="color:#ABB2BF;">type: </span><span style="color:#E5C07B;">dataSet</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">getColumnTypeList</span><span style="color:#ABB2BF;">()) {</span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#ABB2BF;"> type </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#98C379;"> &quot; &quot;</span><span style="color:#ABB2BF;">;</span></span>
<span class="line"><span style="color:#ABB2BF;"> }</span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#C678DD;"> while</span><span style="color:#ABB2BF;"> (</span><span style="color:#E5C07B;">dataSet</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">hasNext</span><span style="color:#ABB2BF;">()) {</span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#E5C07B;"> dataSet</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">next</span><span style="color:#ABB2BF;">()-&gt;</span><span style="color:#61AFEF;">toString</span><span style="color:#ABB2BF;">();</span></span>
<span class="line"><span style="color:#ABB2BF;"> }</span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#ABB2BF;">}</span></span>
<span class="line"></span>
<span class="line"><span style="color:#C678DD;">int</span><span style="color:#61AFEF;"> main</span><span style="color:#ABB2BF;">() {</span></span>
<span class="line"><span style="color:#C678DD;"> try</span><span style="color:#ABB2BF;"> {</span></span>
<span class="line"><span style="color:#ABB2BF;"> session </span><span style="color:#C678DD;">=</span><span style="color:#ABB2BF;"> (</span><span style="color:#C678DD;">new</span><span style="color:#61AFEF;"> TableSessionBuilder</span><span style="color:#ABB2BF;">())</span></span>
<span class="line"><span style="color:#C678DD;"> -&gt;</span><span style="color:#61AFEF;">host</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;127.0.0.1&quot;</span><span style="color:#ABB2BF;">)</span></span>
<span class="line"><span style="color:#C678DD;"> -&gt;</span><span style="color:#61AFEF;">rpcPort</span><span style="color:#ABB2BF;">(</span><span style="color:#D19A66;">6667</span><span style="color:#ABB2BF;">)</span></span>
<span class="line"><span style="color:#C678DD;"> -&gt;</span><span style="color:#61AFEF;">username</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;root&quot;</span><span style="color:#ABB2BF;">)</span></span>
<span class="line"><span style="color:#C678DD;"> -&gt;</span><span style="color:#61AFEF;">password</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;root&quot;</span><span style="color:#ABB2BF;">)</span></span>
<span class="line"><span style="color:#C678DD;"> -&gt;</span><span style="color:#61AFEF;">build</span><span style="color:#ABB2BF;">();</span></span>
<span class="line"><span style="color:#ABB2BF;"> </span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#98C379;"> &quot;[Create Database db1,db2]</span><span style="color:#56B6C2;">\\n</span><span style="color:#98C379;">&quot;</span><span style="color:#C678DD;"> &lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#C678DD;"> try</span><span style="color:#ABB2BF;"> {</span></span>
<span class="line"><span style="color:#E5C07B;"> session</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">executeNonQueryStatement</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;CREATE DATABASE IF NOT EXISTS db1&quot;</span><span style="color:#ABB2BF;">);</span></span>
<span class="line"><span style="color:#E5C07B;"> session</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">executeNonQueryStatement</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;CREATE DATABASE IF NOT EXISTS db2&quot;</span><span style="color:#ABB2BF;">);</span></span>
<span class="line"><span style="color:#ABB2BF;"> } </span><span style="color:#C678DD;">catch</span><span style="color:#ABB2BF;"> (IoTDBException </span><span style="color:#56B6C2;">&amp;</span><span style="color:#ABB2BF;">e) {</span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#E5C07B;"> e</span><span style="color:#ABB2BF;">.</span><span style="color:#61AFEF;">what</span><span style="color:#ABB2BF;">() </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#ABB2BF;"> }</span></span>
<span class="line"><span style="color:#ABB2BF;"> </span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#98C379;"> &quot;[Use db1 as database]</span><span style="color:#56B6C2;">\\n</span><span style="color:#98C379;">&quot;</span><span style="color:#C678DD;"> &lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#C678DD;"> try</span><span style="color:#ABB2BF;"> {</span></span>
<span class="line"><span style="color:#E5C07B;"> session</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">executeNonQueryStatement</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;USE db1&quot;</span><span style="color:#ABB2BF;">);</span></span>
<span class="line"><span style="color:#ABB2BF;"> } </span><span style="color:#C678DD;">catch</span><span style="color:#ABB2BF;"> (IoTDBException </span><span style="color:#56B6C2;">&amp;</span><span style="color:#ABB2BF;">e) {</span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#E5C07B;"> e</span><span style="color:#ABB2BF;">.</span><span style="color:#61AFEF;">what</span><span style="color:#ABB2BF;">() </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#ABB2BF;"> }</span></span>
<span class="line"><span style="color:#ABB2BF;"> </span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#98C379;"> &quot;[Create Table table1,table2]</span><span style="color:#56B6C2;">\\n</span><span style="color:#98C379;">&quot;</span><span style="color:#C678DD;"> &lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#C678DD;"> try</span><span style="color:#ABB2BF;"> {</span></span>
<span class="line"><span style="color:#E5C07B;"> session</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">executeNonQueryStatement</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;create table db1.table1(region_id STRING TAG, plant_id STRING TAG, device_id STRING TAG, model STRING ATTRIBUTE, temperature FLOAT FIELD, humidity DOUBLE FIELD) with (TTL=3600000)&quot;</span><span style="color:#ABB2BF;">);</span></span>
<span class="line"><span style="color:#E5C07B;"> session</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">executeNonQueryStatement</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;create table db2.table2(region_id STRING TAG, plant_id STRING TAG, color STRING ATTRIBUTE, temperature FLOAT FIELD, speed DOUBLE FIELD) with (TTL=6600000)&quot;</span><span style="color:#ABB2BF;">);</span></span>
<span class="line"><span style="color:#ABB2BF;"> } </span><span style="color:#C678DD;">catch</span><span style="color:#ABB2BF;"> (IoTDBException </span><span style="color:#56B6C2;">&amp;</span><span style="color:#ABB2BF;">e) {</span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#E5C07B;"> e</span><span style="color:#ABB2BF;">.</span><span style="color:#61AFEF;">what</span><span style="color:#ABB2BF;">() </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#ABB2BF;"> }</span></span>
<span class="line"><span style="color:#ABB2BF;"> </span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#98C379;"> &quot;[Show Tables]</span><span style="color:#56B6C2;">\\n</span><span style="color:#98C379;">&quot;</span><span style="color:#C678DD;"> &lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#C678DD;"> try</span><span style="color:#ABB2BF;"> {</span></span>
<span class="line"><span style="color:#ABB2BF;"> unique_ptr</span><span style="color:#C678DD;">&lt;</span><span style="color:#ABB2BF;">SessionDataSet</span><span style="color:#C678DD;">&gt;</span><span style="color:#ABB2BF;"> dataSet </span><span style="color:#C678DD;">=</span><span style="color:#E5C07B;"> session</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">executeQueryStatement</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;SHOW TABLES&quot;</span><span style="color:#ABB2BF;">);</span></span>
<span class="line"><span style="color:#61AFEF;"> Output</span><span style="color:#ABB2BF;">(dataSet);</span></span>
<span class="line"><span style="color:#ABB2BF;"> } </span><span style="color:#C678DD;">catch</span><span style="color:#ABB2BF;"> (IoTDBException </span><span style="color:#56B6C2;">&amp;</span><span style="color:#ABB2BF;">e) {</span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#E5C07B;"> e</span><span style="color:#ABB2BF;">.</span><span style="color:#61AFEF;">what</span><span style="color:#ABB2BF;">() </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#ABB2BF;"> }</span></span>
<span class="line"><span style="color:#ABB2BF;"> </span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#98C379;"> &quot;[Show tables from specific database]</span><span style="color:#56B6C2;">\\n</span><span style="color:#98C379;">&quot;</span><span style="color:#C678DD;"> &lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#C678DD;"> try</span><span style="color:#ABB2BF;"> {</span></span>
<span class="line"><span style="color:#ABB2BF;"> unique_ptr</span><span style="color:#C678DD;">&lt;</span><span style="color:#ABB2BF;">SessionDataSet</span><span style="color:#C678DD;">&gt;</span><span style="color:#ABB2BF;"> dataSet </span><span style="color:#C678DD;">=</span><span style="color:#E5C07B;"> session</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">executeQueryStatement</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;SHOW TABLES FROM db1&quot;</span><span style="color:#ABB2BF;">);</span></span>
<span class="line"><span style="color:#61AFEF;"> Output</span><span style="color:#ABB2BF;">(dataSet);</span></span>
<span class="line"><span style="color:#ABB2BF;"> } </span><span style="color:#C678DD;">catch</span><span style="color:#ABB2BF;"> (IoTDBException </span><span style="color:#56B6C2;">&amp;</span><span style="color:#ABB2BF;">e) {</span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#E5C07B;"> e</span><span style="color:#ABB2BF;">.</span><span style="color:#61AFEF;">what</span><span style="color:#ABB2BF;">() </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#ABB2BF;"> }</span></span>
<span class="line"><span style="color:#ABB2BF;"> </span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#98C379;"> &quot;[InsertTablet]</span><span style="color:#56B6C2;">\\n</span><span style="color:#98C379;">&quot;</span><span style="color:#C678DD;"> &lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#C678DD;"> try</span><span style="color:#ABB2BF;"> {</span></span>
<span class="line"><span style="color:#61AFEF;"> insertRelationalTablet</span><span style="color:#ABB2BF;">();</span></span>
<span class="line"><span style="color:#ABB2BF;"> } </span><span style="color:#C678DD;">catch</span><span style="color:#ABB2BF;"> (IoTDBException </span><span style="color:#56B6C2;">&amp;</span><span style="color:#ABB2BF;">e) {</span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#E5C07B;"> e</span><span style="color:#ABB2BF;">.</span><span style="color:#61AFEF;">what</span><span style="color:#ABB2BF;">() </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#ABB2BF;"> }</span></span>
<span class="line"><span style="color:#ABB2BF;"> </span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#98C379;"> &quot;[Query Table Data]</span><span style="color:#56B6C2;">\\n</span><span style="color:#98C379;">&quot;</span><span style="color:#C678DD;"> &lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#C678DD;"> try</span><span style="color:#ABB2BF;"> {</span></span>
<span class="line"><span style="color:#ABB2BF;"> unique_ptr</span><span style="color:#C678DD;">&lt;</span><span style="color:#ABB2BF;">SessionDataSet</span><span style="color:#C678DD;">&gt;</span><span style="color:#ABB2BF;"> dataSet </span><span style="color:#C678DD;">=</span><span style="color:#E5C07B;"> session</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">executeQueryStatement</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;SELECT * FROM table1&quot;</span></span>
<span class="line"><span style="color:#98C379;"> &quot; where region_id = &#39;1&#39; and plant_id in (&#39;3&#39;, &#39;5&#39;) and device_id = &#39;3&#39;&quot;</span><span style="color:#ABB2BF;">);</span></span>
<span class="line"><span style="color:#61AFEF;"> OutputWithType</span><span style="color:#ABB2BF;">(dataSet);</span></span>
<span class="line"><span style="color:#ABB2BF;"> } </span><span style="color:#C678DD;">catch</span><span style="color:#ABB2BF;"> (IoTDBException </span><span style="color:#56B6C2;">&amp;</span><span style="color:#ABB2BF;">e) {</span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#E5C07B;"> e</span><span style="color:#ABB2BF;">.</span><span style="color:#61AFEF;">what</span><span style="color:#ABB2BF;">() </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#ABB2BF;"> }</span></span>
<span class="line"><span style="color:#ABB2BF;"> </span></span>
<span class="line"><span style="color:#E5C07B;"> session</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">close</span><span style="color:#ABB2BF;">();</span></span>
<span class="line"><span style="color:#ABB2BF;"> </span></span>
<span class="line"><span style="color:#7F848E;font-style:italic;"> // specify database in constructor</span></span>
<span class="line"><span style="color:#ABB2BF;"> session </span><span style="color:#C678DD;">=</span><span style="color:#ABB2BF;"> (</span><span style="color:#C678DD;">new</span><span style="color:#61AFEF;"> TableSessionBuilder</span><span style="color:#ABB2BF;">())</span></span>
<span class="line"><span style="color:#C678DD;"> -&gt;</span><span style="color:#61AFEF;">host</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;127.0.0.1&quot;</span><span style="color:#ABB2BF;">)</span></span>
<span class="line"><span style="color:#C678DD;"> -&gt;</span><span style="color:#61AFEF;">rpcPort</span><span style="color:#ABB2BF;">(</span><span style="color:#D19A66;">6667</span><span style="color:#ABB2BF;">)</span></span>
<span class="line"><span style="color:#C678DD;"> -&gt;</span><span style="color:#61AFEF;">username</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;root&quot;</span><span style="color:#ABB2BF;">)</span></span>
<span class="line"><span style="color:#C678DD;"> -&gt;</span><span style="color:#61AFEF;">password</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;root&quot;</span><span style="color:#ABB2BF;">)</span></span>
<span class="line"><span style="color:#C678DD;"> -&gt;</span><span style="color:#61AFEF;">database</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;db1&quot;</span><span style="color:#ABB2BF;">)</span></span>
<span class="line"><span style="color:#C678DD;"> -&gt;</span><span style="color:#61AFEF;">build</span><span style="color:#ABB2BF;">();</span></span>
<span class="line"><span style="color:#ABB2BF;"> </span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#98C379;"> &quot;[Show tables from current database(db1)]</span><span style="color:#56B6C2;">\\n</span><span style="color:#98C379;">&quot;</span><span style="color:#C678DD;"> &lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#C678DD;"> try</span><span style="color:#ABB2BF;"> {</span></span>
<span class="line"><span style="color:#ABB2BF;"> unique_ptr</span><span style="color:#C678DD;">&lt;</span><span style="color:#ABB2BF;">SessionDataSet</span><span style="color:#C678DD;">&gt;</span><span style="color:#ABB2BF;"> dataSet </span><span style="color:#C678DD;">=</span><span style="color:#E5C07B;"> session</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">executeQueryStatement</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;SHOW TABLES&quot;</span><span style="color:#ABB2BF;">);</span></span>
<span class="line"><span style="color:#61AFEF;"> Output</span><span style="color:#ABB2BF;">(dataSet);</span></span>
<span class="line"><span style="color:#ABB2BF;"> } </span><span style="color:#C678DD;">catch</span><span style="color:#ABB2BF;"> (IoTDBException </span><span style="color:#56B6C2;">&amp;</span><span style="color:#ABB2BF;">e) {</span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#E5C07B;"> e</span><span style="color:#ABB2BF;">.</span><span style="color:#61AFEF;">what</span><span style="color:#ABB2BF;">() </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#ABB2BF;"> }</span></span>
<span class="line"><span style="color:#ABB2BF;"> </span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#98C379;"> &quot;[Change database to db2]</span><span style="color:#56B6C2;">\\n</span><span style="color:#98C379;">&quot;</span><span style="color:#C678DD;"> &lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#C678DD;"> try</span><span style="color:#ABB2BF;"> {</span></span>
<span class="line"><span style="color:#E5C07B;"> session</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">executeNonQueryStatement</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;USE db2&quot;</span><span style="color:#ABB2BF;">);</span></span>
<span class="line"><span style="color:#ABB2BF;"> } </span><span style="color:#C678DD;">catch</span><span style="color:#ABB2BF;"> (IoTDBException </span><span style="color:#56B6C2;">&amp;</span><span style="color:#ABB2BF;">e) {</span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#E5C07B;"> e</span><span style="color:#ABB2BF;">.</span><span style="color:#61AFEF;">what</span><span style="color:#ABB2BF;">() </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#ABB2BF;"> }</span></span>
<span class="line"><span style="color:#ABB2BF;"> </span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#98C379;"> &quot;[Show tables from current database(db2)]</span><span style="color:#56B6C2;">\\n</span><span style="color:#98C379;">&quot;</span><span style="color:#C678DD;"> &lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#C678DD;"> try</span><span style="color:#ABB2BF;"> {</span></span>
<span class="line"><span style="color:#ABB2BF;"> unique_ptr</span><span style="color:#C678DD;">&lt;</span><span style="color:#ABB2BF;">SessionDataSet</span><span style="color:#C678DD;">&gt;</span><span style="color:#ABB2BF;"> dataSet </span><span style="color:#C678DD;">=</span><span style="color:#E5C07B;"> session</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">executeQueryStatement</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;SHOW TABLES&quot;</span><span style="color:#ABB2BF;">);</span></span>
<span class="line"><span style="color:#61AFEF;"> Output</span><span style="color:#ABB2BF;">(dataSet);</span></span>
<span class="line"><span style="color:#ABB2BF;"> } </span><span style="color:#C678DD;">catch</span><span style="color:#ABB2BF;"> (IoTDBException </span><span style="color:#56B6C2;">&amp;</span><span style="color:#ABB2BF;">e) {</span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#E5C07B;"> e</span><span style="color:#ABB2BF;">.</span><span style="color:#61AFEF;">what</span><span style="color:#ABB2BF;">() </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#ABB2BF;"> }</span></span>
<span class="line"><span style="color:#ABB2BF;"> </span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#98C379;"> &quot;[Drop Database db1,db2]</span><span style="color:#56B6C2;">\\n</span><span style="color:#98C379;">&quot;</span><span style="color:#C678DD;"> &lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#C678DD;"> try</span><span style="color:#ABB2BF;"> {</span></span>
<span class="line"><span style="color:#E5C07B;"> session</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">executeNonQueryStatement</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;DROP DATABASE db1&quot;</span><span style="color:#ABB2BF;">);</span></span>
<span class="line"><span style="color:#E5C07B;"> session</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">executeNonQueryStatement</span><span style="color:#ABB2BF;">(</span><span style="color:#98C379;">&quot;DROP DATABASE db2&quot;</span><span style="color:#ABB2BF;">);</span></span>
<span class="line"><span style="color:#ABB2BF;"> } </span><span style="color:#C678DD;">catch</span><span style="color:#ABB2BF;"> (IoTDBException </span><span style="color:#56B6C2;">&amp;</span><span style="color:#ABB2BF;">e) {</span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#E5C07B;"> e</span><span style="color:#ABB2BF;">.</span><span style="color:#61AFEF;">what</span><span style="color:#ABB2BF;">() </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#ABB2BF;"> }</span></span>
<span class="line"><span style="color:#ABB2BF;"> </span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#98C379;"> &quot;session close</span><span style="color:#56B6C2;">\\n</span><span style="color:#98C379;">&quot;</span><span style="color:#C678DD;"> &lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#E5C07B;"> session</span><span style="color:#ABB2BF;">-&gt;</span><span style="color:#61AFEF;">close</span><span style="color:#ABB2BF;">();</span></span>
<span class="line"><span style="color:#ABB2BF;"> </span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#98C379;"> &quot;finished!</span><span style="color:#56B6C2;">\\n</span><span style="color:#98C379;">&quot;</span><span style="color:#C678DD;"> &lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#ABB2BF;"> } </span><span style="color:#C678DD;">catch</span><span style="color:#ABB2BF;"> (IoTDBConnectionException </span><span style="color:#56B6C2;">&amp;</span><span style="color:#ABB2BF;">e) {</span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#E5C07B;"> e</span><span style="color:#ABB2BF;">.</span><span style="color:#61AFEF;">what</span><span style="color:#ABB2BF;">() </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#ABB2BF;"> } </span><span style="color:#C678DD;">catch</span><span style="color:#ABB2BF;"> (IoTDBException </span><span style="color:#56B6C2;">&amp;</span><span style="color:#ABB2BF;">e) {</span></span>
<span class="line"><span style="color:#ABB2BF;"> cout </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#E5C07B;"> e</span><span style="color:#ABB2BF;">.</span><span style="color:#61AFEF;">what</span><span style="color:#ABB2BF;">() </span><span style="color:#C678DD;">&lt;&lt;</span><span style="color:#ABB2BF;"> endl;</span></span>
<span class="line"><span style="color:#ABB2BF;"> }</span></span>
<span class="line"><span style="color:#C678DD;"> return</span><span style="color:#D19A66;"> 0</span><span style="color:#ABB2BF;">;</span></span>
<span class="line"><span style="color:#ABB2BF;">}</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><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 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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 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 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><h2 id="_5-faq" tabindex="-1"><a class="header-anchor" href="#_5-faq"><span>5. FAQ</span></a></h2><h3 id="_5-1-thrift-编译相关问题" tabindex="-1"><a class="header-anchor" href="#_5-1-thrift-编译相关问题"><span>5.1 Thrift 编译相关问题</span></a></h3><ol><li><p>MAC：本地 Maven 编译 Thrift 时如出现以下链接的问题，可以尝试将 xcode-commandline 版本从 12 降低到 11.5<br><a href="https://stackoverflow.com/questions/63592445/ld-unsupported-tapi-file-type-tapi-tbd-in-yaml-file/65518087#65518087" target="_blank" rel="noopener noreferrer">https://stackoverflow.com/questions/63592445/ld-unsupported-tapi-file-type-tapi-tbd-in-yaml-file/65518087#65518087</a></p></li><li><p>Windows：Maven 编译 Thrift 时需要使用 wget 下载远端文件，可能出现以下报错：</p><div class="language- line-numbers-mode" data-highlighter="shiki" data-ext="" style="background-color:#282c34;color:#abb2bf;"><pre class="shiki one-dark-pro vp-code"><code class="language-"><span class="line"><span>Failed to delete cached file C:\\Users\\Administrator\\.m2\\repository\\.cache\\download-maven-plugin\\index.ser</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div></div></div><p>解决方法：</p><ul><li>尝试删除 &quot;.m2\\repository\\.cache&quot; 目录并重试。</li><li>在添加 pom 文件对应的 download-maven-plugin 中添加 &quot;&lt;skipCache&gt;true&lt;/skipCache&gt;&quot;</li></ul></li></ol>`,52)])])}const r=n(o,[["render",p]]),i=JSON.parse('{"path":"/zh/UserGuide/latest-Table/API/Programming-Cpp-Native-API_apache.html","title":"C++ 原生接口","lang":"zh-CN","frontmatter":{"description":"C++ 原生接口 1. 依赖 Java 8+ Flex Bison 2.7+ Boost 1.56+ OpenSSL 1.0+ GCC 5.5.0+ 2. 安装 2.1 安装相关依赖 MAC 安装 Bison ： 使用下面 brew 命令安装 bison 版本： 安装 Boost ：确保安装最新的 Boost 版本。 检查 OpenSSL ：确保 op...","head":[["script",{"type":"application/ld+json"},"{\\"@context\\":\\"https://schema.org\\",\\"@type\\":\\"Article\\",\\"headline\\":\\"C++ 原生接口\\",\\"image\\":[\\"\\"],\\"dateModified\\":\\"2026-03-25T07:01:57.000Z\\",\\"author\\":[]}"],["meta",{"property":"og:url","content":"https://iotdb.apache.org/zh/UserGuide/latest-Table/API/Programming-Cpp-Native-API_apache.html"}],["meta",{"property":"og:site_name","content":"IoTDB Website"}],["meta",{"property":"og:title","content":"C++ 原生接口"}],["meta",{"property":"og:description","content":"C++ 原生接口 1. 依赖 Java 8+ Flex Bison 2.7+ Boost 1.56+ OpenSSL 1.0+ GCC 5.5.0+ 2. 安装 2.1 安装相关依赖 MAC 安装 Bison ： 使用下面 brew 命令安装 bison 版本： 安装 Boost ：确保安装最新的 Boost 版本。 检查 OpenSSL ：确保 op..."}],["meta",{"property":"og:type","content":"article"}],["meta",{"property":"og:locale","content":"zh-CN"}],["meta",{"property":"og:locale:alternate","content":"en-US"}],["meta",{"property":"og:updated_time","content":"2026-03-25T07:01:57.000Z"}],["meta",{"property":"article:modified_time","content":"2026-03-25T07:01:57.000Z"}],["link",{"rel":"alternate","hreflang":"en-us","href":"https://iotdb.apache.org/UserGuide/latest-Table/API/Programming-Cpp-Native-API_apache.html"}]]},"git":{"createdTime":1742874514000,"updatedTime":1774422117000,"contributors":[{"name":"xiangmy21","username":"xiangmy21","email":"90919434+xiangmy21@users.noreply.github.com","commits":1,"url":"https://github.com/xiangmy21"},{"name":"leto-b","username":"leto-b","email":"bingqian.bai@timecho.com","commits":5,"url":"https://github.com/leto-b"}]},"readingTime":{"minutes":8.65,"words":2594},"filePathRelative":"zh/UserGuide/latest-Table/API/Programming-Cpp-Native-API_apache.md","autoDesc":true}');export{r as comp,i as data};