| import{_ as l,r as o,o as i,c as p,b as n,d as s,a as t,e}from"./app-Bp5kEZWW.js";const c={},d=e('<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="依赖" tabindex="-1"><a class="header-anchor" href="#依赖"><span>依赖</span></a></h2><ul><li>Java 8+</li><li>Maven 3.5+</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="安装" tabindex="-1"><a class="header-anchor" href="#安装"><span>安装</span></a></h2><h3 id="安装相关依赖" tabindex="-1"><a class="header-anchor" href="#安装相关依赖"><span>安装相关依赖</span></a></h3>',5),r=e(`<li><p><strong>MAC</strong></p><ol><li><p>安装 Bison :Mac 环境下预安装了 Bison 2.3 版本,但该版本过低不能够用来编译 Thrift。</p><p>使用 Bison 2.3 版本会报以下错误:<br><code>invalid directive: '%code'</code></p><p>使用下面 brew 命令更新 bison 版本:</p><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code>brew <span class="token function">install</span> bison |
| brew <span class="token function">link</span> bison <span class="token parameter variable">--force</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><p>添加环境变量:</p><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code><span class="token builtin class-name">echo</span> <span class="token string">'export PATH="/usr/local/opt/bison/bin:$PATH"'</span> <span class="token operator">>></span> ~/.bash_profile |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div></li><li><p>安装 Boost :确保安装较新的 Boost 版本。</p><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code>brew <span class="token function">install</span> boost |
| brew <span class="token function">link</span> boost |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><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"/usr/local/opt/openssl/include"</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=""</code></p></li></ol></li><li><p><strong>Ubuntu 20</strong></p><p>使用以下命令安装所有依赖:</p><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code><span class="token function">sudo</span> <span class="token function">apt-get</span> <span class="token function">install</span> gcc-9 g++-9 libstdc++-9-dev bison flex libboost-all-dev libssl-dev zlib1g-dev |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div></li><li><p><strong>CentOS 7.x</strong></p><p>使用 yum 命令安装部分依赖。</p><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code><span class="token function">sudo</span> yum <span class="token function">install</span> bison flex openssl-devel |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>使用 yum 安装的 GCC、Boost 版本过低,在编译时会报错,需自行安装或升级。</p></li>`,3),u=n("p",null,[n("strong",null,"Windows")],-1),v=n("p",null,"构建编译环境",-1),m=n("li",null,"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)。",-1),g={href:"https://cmake.org/download/",target:"_blank",rel:"noopener noreferrer"},k=n("p",null,"下载安装 Flex、Bison",-1),b={href:"https://sourceforge.net/projects/winflexbison/",target:"_blank",rel:"noopener noreferrer"},h=n("li",null,"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。",-1),f=n("p",null,"安装 Boost",-1),y={href:"https://www.boost.org/users/download/",target:"_blank",rel:"noopener noreferrer"},x=n("li",null,"本地编译 Boost :依次执行 bootstrap.bat 和 b2.exe 。",-1),w=n("p",null,"安装 OpenSSL",-1),T={href:"http://slproweb.com/products/Win32OpenSSL.html",target:"_blank",rel:"noopener noreferrer"},S=e(`<h3 id="执行编译" tabindex="-1"><a class="header-anchor" href="#执行编译"><span>执行编译</span></a></h3><p>从 git 克隆源代码:</p><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code><span class="token function">git</span> clone https://github.com/apache/iotdb.git |
| </code></pre><div class="line-numbers" aria-hidden="true"><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 0.13 版本):</p><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code><span class="token function">git</span> checkout rel/0.13 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>在 IoTDB 根目录下执行 maven 编译:</p><ul><li><p>Mac & Linux</p><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code>mvn package <span class="token parameter variable">-P</span> compile-cpp <span class="token parameter variable">-pl</span> example/client-cpp-example <span class="token parameter variable">-am</span> <span class="token parameter variable">-DskipTest</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div></li><li><p>Windows</p><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code>mvn package <span class="token parameter variable">-P</span> compile-cpp <span class="token parameter variable">-pl</span> iotdb-client/client-cpp,iotdb-core/datanode,example/client-cpp-example <span class="token parameter variable">-am</span> <span class="token parameter variable">-Dcmake.generator</span><span class="token operator">=</span><span class="token string">"your cmake generator"</span> <span class="token parameter variable">-Dboost.include.dir</span><span class="token operator">=</span><span class="token variable">\${your boost header folder}</span> <span class="token parameter variable">-Dboost.library.dir</span><span class="token operator">=</span><span class="token variable">\${your boost lib (stage) folder}</span> <span class="token parameter variable">-DskipTests</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li>CMake 根据不同编译平台使用不同的生成器,需添加<code>-Dcmake.generator=""</code>选项来指定使用的生成器名称,例如: <code>-Dcmake.generator="Visual Studio 16 2019"</code>。(通过<code>cmake --help</code>命令可以查看 CMake 支持的生成器列表)</li><li>为了帮助 CMake 找到本地安装好的 Boost,在编译命令中需添加相关参数,例如:<code>-DboostIncludeDir="C:\\Program Files (x86)\\boost_1_78_0" -DboostLibraryDir="C:\\Program Files (x86)\\boost_1_78_0\\stage\\lib"</code></li></ul></li></ul><p>编译成功后,打包好的 zip 文件位于 <code>client-cpp/target/client-cpp-1.3.0-SNAPSHOT-cpp-\${os}.zip</code></p><h3 id="编译-q-a" tabindex="-1"><a class="header-anchor" href="#编译-q-a"><span>编译 Q&A</span></a></h3><p>Q:编译报错<code>undefined reference to '_libc_sinle_thread'</code>如何处理?</p><p>A:</p><ul><li>删除 C++client 的 pom.xml 里关于test相关的编译和运行操作,修改后的 pom 如下所示:</li></ul><div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code> |
| <?xml version="1.0" encoding="UTF-8"?> |
| <!-- |
| |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, |
| software distributed under the License is distributed on an |
| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| KIND, either express or implied. See the License for the |
| specific language governing permissions and limitations |
| under the License. |
| |
| --> |
| <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> |
| <modelVersion>4.0.0</modelVersion> |
| <parent> |
| <groupId>org.apache.iotdb</groupId> |
| <artifactId>iotdb-client</artifactId> |
| <version>1.3.1-SNAPSHOT</version> |
| </parent> |
| <artifactId>client-cpp</artifactId> |
| <packaging>pom</packaging> |
| <name>IoTDB: Client: Client for CPP</name> |
| <description>C++ client</description> |
| <!-- TODO: The tests don't run, if distribution has not been built locally and fails without reasoning --> |
| <properties> |
| <catch2.url>https://alioss.timecho.com/upload/catch.hpp</catch2.url> |
| <cmake.build.type>Release</cmake.build.type> |
| <!-- Default value of cmake root --> |
| <cmake.root.dir>\${project.build.directory}/dependency/cmake/</cmake.root.dir> |
| <thrift.exec.absolute.path>\${project.build.directory}/thrift/bin/\${thrift.executable}</thrift.exec.absolute.path> |
| </properties> |
| <dependencies> |
| <dependency> |
| <groupId>org.apache.iotdb</groupId> |
| <artifactId>iotdb-thrift-commons</artifactId> |
| <version>1.3.1-SNAPSHOT</version> |
| <scope>provided</scope> |
| </dependency> |
| </dependencies> |
| <build> |
| <plugins> |
| <!-- Build and do session integration test --> |
| <plugin> |
| <groupId>org.apache.maven.plugins</groupId> |
| <artifactId>maven-dependency-plugin</artifactId> |
| <executions> |
| <execution> |
| <id>get-thrift</id> |
| <goals> |
| <goal>unpack</goal> |
| </goals> |
| <phase>generate-sources</phase> |
| <configuration> |
| <artifactItems> |
| <artifactItem> |
| <groupId>org.apache.iotdb.tools</groupId> |
| <artifactId>iotdb-tools-thrift</artifactId> |
| <version>\${iotdb-tools-thrift.version}</version> |
| <classifier>\${os.classifier}</classifier> |
| <type>zip</type> |
| <overWrite>true</overWrite> |
| <outputDirectory>\${project.build.directory}/thrift</outputDirectory> |
| </artifactItem> |
| </artifactItems> |
| </configuration> |
| </execution> |
| </executions> |
| </plugin> |
| <plugin> |
| <groupId>com.googlecode.maven-download-plugin</groupId> |
| <artifactId>download-maven-plugin</artifactId> |
| <executions> |
| <execution> |
| <id>get-catch2</id> |
| <goals> |
| <goal>wget</goal> |
| </goals> |
| <phase>generate-resources</phase> |
| <configuration> |
| <url>\${catch2.url}</url> |
| <unpack>false</unpack> |
| <outputDirectory>\${project.build.directory}/build/test/catch2</outputDirectory> |
| </configuration> |
| </execution> |
| </executions> |
| </plugin> |
| <plugin> |
| <groupId>com.coderplus.maven.plugins</groupId> |
| <artifactId>copy-rename-maven-plugin</artifactId> |
| <executions> |
| <!-- TODO: Do this differently using the artifact downloader --> |
| <execution> |
| <id>copy-protocol-thrift-source</id> |
| <goals> |
| <goal>copy</goal> |
| </goals> |
| <configuration> |
| <fileSets> |
| <fileSet> |
| <sourceFile>../../iotdb-protocol/thrift-datanode/src/main/thrift/client.thrift</sourceFile> |
| <destinationFile>\${project.build.directory}/protocols/client.thrift</destinationFile> |
| </fileSet> |
| <fileSet> |
| <sourceFile>../../iotdb-protocol/thrift-commons/src/main/thrift/common.thrift</sourceFile> |
| <destinationFile>\${project.build.directory}/protocols/common.thrift</destinationFile> |
| </fileSet> |
| </fileSets> |
| </configuration> |
| </execution> |
| <!-- TODO: Do this differently using the maven-resources-plugin --> |
| <execution> |
| <!-- Copy source file and CmakeLists.txt into target directory --> |
| <id>copy-cmakelist-file</id> |
| <goals> |
| <goal>copy</goal> |
| </goals> |
| <phase>compile</phase> |
| <configuration> |
| <fileSets> |
| <fileSet> |
| <sourceFile>\${project.basedir}/src/main/CMakeLists.txt</sourceFile> |
| <destinationFile>\${project.build.directory}/build/main/CMakeLists.txt</destinationFile> |
| </fileSet> |
| <fileSet> |
| <sourceFile>\${project.basedir}/src/main/Session.h</sourceFile> |
| <destinationFile>\${project.build.directory}/build/main/generated-sources-cpp/Session.h</destinationFile> |
| </fileSet> |
| <fileSet> |
| <sourceFile>\${project.basedir}/src/main/Session.cpp</sourceFile> |
| <destinationFile>\${project.build.directory}/build/main/generated-sources-cpp/Session.cpp</destinationFile> |
| </fileSet> |
| </fileSets> |
| </configuration> |
| </execution> |
| </executions> |
| </plugin> |
| <plugin> |
| <groupId>org.apache.thrift.tools</groupId> |
| <artifactId>maven-thrift-plugin</artifactId> |
| <executions> |
| <execution> |
| <id>generate-thrift-sources-cpp</id> |
| <goals> |
| <goal>compile</goal> |
| </goals> |
| <!-- Move from generate-sources to generate-resources to avoid double executions --> |
| <phase>generate-resources</phase> |
| <configuration> |
| <generator>cpp:no_skeleton</generator> |
| <thriftExecutable>\${thrift.exec.absolute.path}</thriftExecutable> |
| <thriftSourceRoot>\${project.build.directory}/protocols</thriftSourceRoot> |
| <outputDirectory>\${project.build.directory}/build/main/generated-sources-cpp</outputDirectory> |
| </configuration> |
| </execution> |
| </executions> |
| </plugin> |
| <plugin> |
| <groupId>com.googlecode.cmake-maven-project</groupId> |
| <artifactId>cmake-maven-plugin</artifactId> |
| <executions> |
| <!-- Uses a CMake generator to generate the build using the build tool of choice --> |
| <execution> |
| <id>cmake-generate</id> |
| <goals> |
| <goal>generate</goal> |
| </goals> |
| <phase>compile</phase> |
| <configuration> |
| <generator>\${cmake.generator}</generator> |
| <sourcePath>\${project.build.directory}/build/main</sourcePath> |
| <targetPath>\${project.build.directory}/build/main</targetPath> |
| <options> |
| <option>-DBOOST_INCLUDEDIR=\${boost.include.dir}</option> |
| </options> |
| </configuration> |
| </execution> |
| <!-- Generate Cmake build directory to compile testing program --> |
| <!-- Actually executes the build --> |
| <execution> |
| <id>cmake-compile</id> |
| <goals> |
| <goal>compile</goal> |
| </goals> |
| <phase>compile</phase> |
| <configuration> |
| <config>\${cmake.build.type}</config> |
| <!-- The directory where the "generate" step generated the build configuration --> |
| <projectDirectory>\${project.build.directory}/build/main</projectDirectory> |
| </configuration> |
| </execution> |
| <!-- Actually executes the testing compilation --> |
| </executions> |
| </plugin> |
| <!--Package all C++ header files and client library--> |
| <plugin> |
| <groupId>org.apache.maven.plugins</groupId> |
| <artifactId>maven-assembly-plugin</artifactId> |
| <executions> |
| <execution> |
| <id>package-client-cpp</id> |
| <goals> |
| <goal>single</goal> |
| </goals> |
| <phase>package</phase> |
| <configuration> |
| <finalName>\${project.artifactId}-\${project.version}</finalName> |
| <descriptors> |
| <descriptor>src/assembly/client-cpp.xml</descriptor> |
| </descriptors> |
| </configuration> |
| </execution> |
| </executions> |
| </plugin> |
| </plugins> |
| </build> |
| <profiles> |
| <profile> |
| <id>.os-unix</id> |
| <activation> |
| <os> |
| <name>Linux</name> |
| <family>unix</family> |
| <arch>!aarch64</arch> |
| </os> |
| </activation> |
| <properties> |
| <iotdb.start.script>start-standalone.sh</iotdb.start.script> |
| <iotdb.stop.script>stop-standalone.sh</iotdb.stop.script> |
| <os.suffix>linux</os.suffix> |
| </properties> |
| </profile> |
| <profile> |
| <id>.os-unix-arm</id> |
| <activation> |
| <os> |
| <name>Linux</name> |
| <family>unix</family> |
| <arch>aarch64</arch> |
| </os> |
| </activation> |
| <properties> |
| <iotdb.start.script>start-standalone.sh</iotdb.start.script> |
| <iotdb.stop.script>stop-standalone.sh</iotdb.stop.script> |
| <os.suffix>linux</os.suffix> |
| </properties> |
| </profile> |
| <profile> |
| <id>.os-mac</id> |
| <activation> |
| <os> |
| <family>mac</family> |
| <arch>!aarch64</arch> |
| </os> |
| </activation> |
| <properties> |
| <iotdb.start.script>start-standalone.sh</iotdb.start.script> |
| <iotdb.stop.script>stop-standalone.sh</iotdb.stop.script> |
| <os.suffix>mac</os.suffix> |
| </properties> |
| </profile> |
| <profile> |
| <id>.os-mac-arm</id> |
| <activation> |
| <os> |
| <family>mac</family> |
| <arch>aarch64</arch> |
| </os> |
| </activation> |
| <properties> |
| <iotdb.start.script>start-standalone.sh</iotdb.start.script> |
| <iotdb.stop.script>stop-standalone.sh</iotdb.stop.script> |
| <os.suffix>mac</os.suffix> |
| </properties> |
| </profile> |
| <profile> |
| <id>.os-windows</id> |
| <activation> |
| <os> |
| <family>windows</family> |
| </os> |
| </activation> |
| <properties> |
| <iotdb.start.script>start-standalone.bat</iotdb.start.script> |
| <iotdb.stop.script>stop-standalone.bat</iotdb.stop.script> |
| <os.suffix>win</os.suffix> |
| </properties> |
| </profile> |
| </profiles> |
| </project> |
| </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 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 class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>再次执行 mvn clean package -P with-cpp -pl iotdb-client/client-cpp -am -DskipTests,成功build</li></ul><h2 id="基本接口说明" tabindex="-1"><a class="header-anchor" href="#基本接口说明"><span>基本接口说明</span></a></h2><p>下面将给出 Session 接口的简要介绍和原型定义:</p><h3 id="初始化" tabindex="-1"><a class="header-anchor" href="#初始化"><span>初始化</span></a></h3><ul><li>开启 Session</li></ul><div class="language-cpp line-numbers-mode" data-ext="cpp" data-title="cpp"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">open</span><span class="token punctuation">(</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></div><ul><li>开启 Session,并决定是否开启 RPC 压缩</li></ul><div class="language-cpp line-numbers-mode" data-ext="cpp" data-title="cpp"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">open</span><span class="token punctuation">(</span><span class="token keyword">bool</span> enableRPCCompression<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></div><p>注意: 客户端的 RPC 压缩开启状态需和服务端一致。</p><ul><li>关闭 Session</li></ul><div class="language-cpp line-numbers-mode" data-ext="cpp" data-title="cpp"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">close</span><span class="token punctuation">(</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></div><h3 id="数据定义接口-ddl" tabindex="-1"><a class="header-anchor" href="#数据定义接口-ddl"><span>数据定义接口(DDL)</span></a></h3><h4 id="database-管理" tabindex="-1"><a class="header-anchor" href="#database-管理"><span>Database 管理</span></a></h4><ul><li>设置 database</li></ul><div class="language-cpp line-numbers-mode" data-ext="cpp" data-title="cpp"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">setStorageGroup</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>storageGroupId<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></div><ul><li>删除单个或多个 database</li></ul><div class="language-cpp line-numbers-mode" data-ext="cpp" data-title="cpp"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">deleteStorageGroup</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>storageGroup<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token keyword">void</span> <span class="token function">deleteStorageGroups</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>storageGroups<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></div><h4 id="时间序列管理" tabindex="-1"><a class="header-anchor" href="#时间序列管理"><span>时间序列管理</span></a></h4><ul><li>创建单个或多个非对齐时间序列</li></ul><div class="language-cpp line-numbers-mode" data-ext="cpp" data-title="cpp"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">createTimeseries</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>path<span class="token punctuation">,</span> TSDataType<span class="token double-colon punctuation">::</span>TSDataType dataType<span class="token punctuation">,</span> TSEncoding<span class="token double-colon punctuation">::</span>TSEncoding encoding<span class="token punctuation">,</span> |
| CompressionType<span class="token double-colon punctuation">::</span>CompressionType compressor<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| <span class="token keyword">void</span> <span class="token function">createMultiTimeseries</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>paths<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>TSDataType<span class="token double-colon punctuation">::</span>TSDataType<span class="token operator">></span> <span class="token operator">&</span>dataTypes<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>TSEncoding<span class="token double-colon punctuation">::</span>TSEncoding<span class="token operator">></span> <span class="token operator">&</span>encodings<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>CompressionType<span class="token double-colon punctuation">::</span>CompressionType<span class="token operator">></span> <span class="token operator">&</span>compressors<span class="token punctuation">,</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>map<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token punctuation">,</span> std<span class="token double-colon punctuation">::</span>string<span class="token operator">>></span> <span class="token operator">*</span>propsList<span class="token punctuation">,</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>map<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token punctuation">,</span> std<span class="token double-colon punctuation">::</span>string<span class="token operator">>></span> <span class="token operator">*</span>tagsList<span class="token punctuation">,</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>map<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token punctuation">,</span> std<span class="token double-colon punctuation">::</span>string<span class="token operator">>></span> <span class="token operator">*</span>attributesList<span class="token punctuation">,</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">*</span>measurementAliasList<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 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><ul><li>创建对齐时间序列</li></ul><div class="language-cpp line-numbers-mode" data-ext="cpp" data-title="cpp"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">createAlignedTimeseries</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>deviceId<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>measurements<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>TSDataType<span class="token double-colon punctuation">::</span>TSDataType<span class="token operator">></span> <span class="token operator">&</span>dataTypes<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>TSEncoding<span class="token double-colon punctuation">::</span>TSEncoding<span class="token operator">></span> <span class="token operator">&</span>encodings<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>CompressionType<span class="token double-colon punctuation">::</span>CompressionType<span class="token operator">></span> <span class="token operator">&</span>compressors<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 class="line-number"></div><div class="line-number"></div></div></div><ul><li>删除一个或多个时间序列</li></ul><div class="language-cpp line-numbers-mode" data-ext="cpp" data-title="cpp"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">deleteTimeseries</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>path<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token keyword">void</span> <span class="token function">deleteTimeseries</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>paths<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></div><ul><li>检查时间序列是否存在</li></ul><div class="language-cpp line-numbers-mode" data-ext="cpp" data-title="cpp"><pre class="language-cpp"><code><span class="token keyword">bool</span> <span class="token function">checkTimeseriesExists</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>path<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></div><h4 id="元数据模版" tabindex="-1"><a class="header-anchor" href="#元数据模版"><span>元数据模版</span></a></h4><ul><li>创建元数据模板</li></ul><div class="language-cpp line-numbers-mode" data-ext="cpp" data-title="cpp"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">createSchemaTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> Template <span class="token operator">&</span>templ<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></div><ul><li>挂载元数据模板</li></ul><div class="language-cpp line-numbers-mode" data-ext="cpp" data-title="cpp"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">setSchemaTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<span class="token punctuation">,</span> <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>prefix_path<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></div><p>请注意,如果一个子树中有多个孩子节点需要使用模板,可以在其共同父母节点上使用 setSchemaTemplate 。而只有在已有数据点插入模板对应的物理量时,模板才会被设置为激活状态,进而被 show timeseries 等查询检测到。</p><ul><li>卸载元数据模板</li></ul><div class="language-cpp line-numbers-mode" data-ext="cpp" data-title="cpp"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">unsetSchemaTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>prefix_path<span class="token punctuation">,</span> <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<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></div><p>注意:目前不支持从曾经在<code>prefixPath</code>路径及其后代节点使用模板插入数据后(即使数据已被删除)卸载模板。</p><ul><li>在创建概念元数据模板以后,还可以通过以下接口增加或删除模板内的物理量。请注意,已经挂载的模板不能删除内部的物理量。</li></ul><div class="language-cpp line-numbers-mode" data-ext="cpp" data-title="cpp"><pre class="language-cpp"><code><span class="token comment">// 为指定模板新增一组对齐的物理量,若其父节点在模板中已经存在,且不要求对齐,则报错</span> |
| <span class="token keyword">void</span> <span class="token function">addAlignedMeasurementsInTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>measurements<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>TSDataType<span class="token double-colon punctuation">::</span>TSDataType<span class="token operator">></span> <span class="token operator">&</span>dataTypes<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>TSEncoding<span class="token double-colon punctuation">::</span>TSEncoding<span class="token operator">></span> <span class="token operator">&</span>encodings<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>CompressionType<span class="token double-colon punctuation">::</span>CompressionType<span class="token operator">></span> <span class="token operator">&</span>compressors<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| <span class="token comment">// 为指定模板新增一个对齐物理量, 若其父节点在模板中已经存在,且不要求对齐,则报错</span> |
| <span class="token keyword">void</span> <span class="token function">addAlignedMeasurementsInTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>measurement<span class="token punctuation">,</span> |
| TSDataType<span class="token double-colon punctuation">::</span>TSDataType dataType<span class="token punctuation">,</span> |
| TSEncoding<span class="token double-colon punctuation">::</span>TSEncoding encoding<span class="token punctuation">,</span> |
| CompressionType<span class="token double-colon punctuation">::</span>CompressionType compressor<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| <span class="token comment">// 为指定模板新增一个不对齐物理量, 若其父节在模板中已经存在,且要求对齐,则报错</span> |
| <span class="token keyword">void</span> <span class="token function">addUnalignedMeasurementsInTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>measurements<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>TSDataType<span class="token double-colon punctuation">::</span>TSDataType<span class="token operator">></span> <span class="token operator">&</span>dataTypes<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>TSEncoding<span class="token double-colon punctuation">::</span>TSEncoding<span class="token operator">></span> <span class="token operator">&</span>encodings<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>CompressionType<span class="token double-colon punctuation">::</span>CompressionType<span class="token operator">></span> <span class="token operator">&</span>compressors<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| <span class="token comment">// 为指定模板新增一组不对齐的物理量, 若其父节在模板中已经存在,且要求对齐,则报错</span> |
| <span class="token keyword">void</span> <span class="token function">addUnalignedMeasurementsInTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>measurement<span class="token punctuation">,</span> |
| TSDataType<span class="token double-colon punctuation">::</span>TSDataType dataType<span class="token punctuation">,</span> |
| TSEncoding<span class="token double-colon punctuation">::</span>TSEncoding encoding<span class="token punctuation">,</span> |
| CompressionType<span class="token double-colon punctuation">::</span>CompressionType compressor<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| <span class="token comment">// 从指定模板中删除一个节点及其子树</span> |
| <span class="token keyword">void</span> <span class="token function">deleteNodeInTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<span class="token punctuation">,</span> <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>path<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 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><ul><li>对于已经创建的元数据模板,还可以通过以下接口查询模板信息:</li></ul><div class="language-cpp line-numbers-mode" data-ext="cpp" data-title="cpp"><pre class="language-cpp"><code><span class="token comment">// 查询返回目前模板中所有物理量的数量</span> |
| <span class="token keyword">int</span> <span class="token function">countMeasurementsInTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| <span class="token comment">// 检查模板内指定路径是否为物理量</span> |
| <span class="token keyword">bool</span> <span class="token function">isMeasurementInTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<span class="token punctuation">,</span> <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>path<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| <span class="token comment">// 检查在指定模板内是否存在某路径</span> |
| <span class="token keyword">bool</span> <span class="token function">isPathExistInTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<span class="token punctuation">,</span> <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>path<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| <span class="token comment">// 返回指定模板内所有物理量的路径</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token function">showMeasurementsInTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| <span class="token comment">// 返回指定模板内某前缀路径下的所有物理量的路径</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token function">showMeasurementsInTemplate</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>template_name<span class="token punctuation">,</span> <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>pattern<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 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="数据操作接口-dml" tabindex="-1"><a class="header-anchor" href="#数据操作接口-dml"><span>数据操作接口(DML)</span></a></h3><h4 id="数据写入" tabindex="-1"><a class="header-anchor" href="#数据写入"><span>数据写入</span></a></h4><blockquote><p>推荐使用 insertTablet 帮助提高写入效率。</p></blockquote><ul><li>插入一个 Tablet,Tablet 是一个设备若干行数据块,每一行的列都相同。 <ul><li>写入效率高。</li><li>支持写入空值:空值处可以填入任意值,然后通过 BitMap 标记空值。</li></ul></li></ul><div class="language-cpp line-numbers-mode" data-ext="cpp" data-title="cpp"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">insertTablet</span><span class="token punctuation">(</span>Tablet <span class="token operator">&</span>tablet<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></div><ul><li>插入多个 Tablet</li></ul><div class="language-cpp line-numbers-mode" data-ext="cpp" data-title="cpp"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">insertTablets</span><span class="token punctuation">(</span>std<span class="token double-colon punctuation">::</span>unordered_map<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token punctuation">,</span> Tablet <span class="token operator">*</span><span class="token operator">></span> <span class="token operator">&</span>tablets<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></div><ul><li>插入一个 Record,一个 Record 是一个设备一个时间戳下多个测点的数据</li></ul><div class="language-cpp line-numbers-mode" data-ext="cpp" data-title="cpp"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">insertRecord</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>deviceId<span class="token punctuation">,</span> <span class="token keyword">int64_t</span> time<span class="token punctuation">,</span> <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>measurements<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>TSDataType<span class="token double-colon punctuation">::</span>TSDataType<span class="token operator">></span> <span class="token operator">&</span>types<span class="token punctuation">,</span> <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span><span class="token keyword">char</span> <span class="token operator">*</span><span class="token operator">></span> <span class="token operator">&</span>values<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></div><ul><li>插入多个 Record</li></ul><div class="language-cpp line-numbers-mode" data-ext="cpp" data-title="cpp"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">insertRecords</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>deviceIds<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span><span class="token keyword">int64_t</span><span class="token operator">></span> <span class="token operator">&</span>times<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">>></span> <span class="token operator">&</span>measurementsList<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>TSDataType<span class="token double-colon punctuation">::</span>TSDataType<span class="token operator">>></span> <span class="token operator">&</span>typesList<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span><span class="token keyword">char</span> <span class="token operator">*</span><span class="token operator">>></span> <span class="token operator">&</span>valuesList<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 class="line-number"></div><div class="line-number"></div></div></div><ul><li>插入同属于一个 device 的多个 Record</li></ul><div class="language-cpp line-numbers-mode" data-ext="cpp" data-title="cpp"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">insertRecordsOfOneDevice</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>deviceId<span class="token punctuation">,</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span><span class="token keyword">int64_t</span><span class="token operator">></span> <span class="token operator">&</span>times<span class="token punctuation">,</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">>></span> <span class="token operator">&</span>measurementsList<span class="token punctuation">,</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>TSDataType<span class="token double-colon punctuation">::</span>TSDataType<span class="token operator">>></span> <span class="token operator">&</span>typesList<span class="token punctuation">,</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span><span class="token keyword">char</span> <span class="token operator">*</span><span class="token operator">>></span> <span class="token operator">&</span>valuesList<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 class="line-number"></div><div class="line-number"></div></div></div><h4 id="带有类型推断的写入" tabindex="-1"><a class="header-anchor" href="#带有类型推断的写入"><span>带有类型推断的写入</span></a></h4><p>服务器需要做类型推断,可能会有额外耗时,速度较无需类型推断的写入慢。</p><div class="language-cpp line-numbers-mode" data-ext="cpp" data-title="cpp"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">insertRecord</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>deviceId<span class="token punctuation">,</span> <span class="token keyword">int64_t</span> time<span class="token punctuation">,</span> <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>measurements<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>values<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| |
| <span class="token keyword">void</span> <span class="token function">insertRecords</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>deviceIds<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span><span class="token keyword">int64_t</span><span class="token operator">></span> <span class="token operator">&</span>times<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">>></span> <span class="token operator">&</span>measurementsList<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">>></span> <span class="token operator">&</span>valuesList<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| |
| <span class="token keyword">void</span> <span class="token function">insertRecordsOfOneDevice</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>deviceId<span class="token punctuation">,</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span><span class="token keyword">int64_t</span><span class="token operator">></span> <span class="token operator">&</span>times<span class="token punctuation">,</span> |
| std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">>></span> <span class="token operator">&</span>measurementsList<span class="token punctuation">,</span> |
| <span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">>></span> <span class="token operator">&</span>valuesList<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 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="对齐时间序列写入" tabindex="-1"><a class="header-anchor" href="#对齐时间序列写入"><span>对齐时间序列写入</span></a></h4><p>对齐时间序列的写入使用 insertAlignedXXX 接口,其余与上述接口类似:</p><ul><li>insertAlignedRecord</li><li>insertAlignedRecords</li><li>insertAlignedRecordsOfOneDevice</li><li>insertAlignedTablet</li><li>insertAlignedTablets</li></ul><h4 id="数据删除" tabindex="-1"><a class="header-anchor" href="#数据删除"><span>数据删除</span></a></h4><ul><li>删除一个或多个时间序列在某个时间点前或这个时间点的数据</li></ul><div class="language-cpp line-numbers-mode" data-ext="cpp" data-title="cpp"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">deleteData</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>path<span class="token punctuation">,</span> <span class="token keyword">int64_t</span> time<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token keyword">void</span> <span class="token function">deleteData</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>vector<span class="token operator"><</span>std<span class="token double-colon punctuation">::</span>string<span class="token operator">></span> <span class="token operator">&</span>deviceId<span class="token punctuation">,</span> <span class="token keyword">int64_t</span> time<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></div><h3 id="iotdb-sql-接口" tabindex="-1"><a class="header-anchor" href="#iotdb-sql-接口"><span>IoTDB-SQL 接口</span></a></h3><ul><li>执行查询语句</li></ul><div class="language-cpp line-numbers-mode" data-ext="cpp" data-title="cpp"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">executeNonQueryStatement</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>sql<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></div><ul><li>执行非查询语句</li></ul><div class="language-cpp line-numbers-mode" data-ext="cpp" data-title="cpp"><pre class="language-cpp"><code><span class="token keyword">void</span> <span class="token function">executeNonQueryStatement</span><span class="token punctuation">(</span><span class="token keyword">const</span> std<span class="token double-colon punctuation">::</span>string <span class="token operator">&</span>sql<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></div><h2 id="示例代码" tabindex="-1"><a class="header-anchor" href="#示例代码"><span>示例代码</span></a></h2><p>示例工程源代码:</p><ul><li><code>example/client-cpp-example/src/SessionExample.cpp</code></li><li><code>example/client-cpp-example/src/AlignedTimeseriesSessionExample.cpp</code> (使用对齐时间序列)</li></ul><p>编译成功后,示例代码工程位于 <code>example/client-cpp-example/target</code></p><h2 id="faq" tabindex="-1"><a class="header-anchor" href="#faq"><span>FAQ</span></a></h2><h3 id="thrift-编译相关问题" tabindex="-1"><a class="header-anchor" href="#thrift-编译相关问题"><span>Thrift 编译相关问题</span></a></h3>`,85),_=n("br",null,null,-1),I={href:"https://stackoverflow.com/questions/63592445/ld-unsupported-tapi-file-type-tapi-tbd-in-yaml-file/65518087#65518087",target:"_blank",rel:"noopener noreferrer"},C=n("li",null,[n("p",null,"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:"),n("div",{class:"language-text line-numbers-mode","data-ext":"text","data-title":"text"},[n("pre",{class:"language-text"},[n("code",null,`Failed to delete cached file C:\\Users\\Administrator\\.m2\\repository\\.cache\\download-maven-plugin\\index.ser |
| `)]),n("div",{class:"line-numbers","aria-hidden":"true"},[n("div",{class:"line-number"})])]),n("p",null,"解决方法:"),n("ul",null,[n("li",null,'尝试删除 ".m2\\repository\\.cache" 目录并重试。'),n("li",null,'在添加 pom 文件对应的 download-maven-plugin 中添加 "<skipCache>true</skipCache>"')])],-1);function D(q,A){const a=o("ExternalLinkIcon");return i(),p("div",null,[d,n("ul",null,[r,n("li",null,[u,n("ol",null,[n("li",null,[v,n("ul",null,[m,n("li",null,[s("下载安装 "),n("a",g,[s("CMake"),t(a)]),s(" 。")])])]),n("li",null,[k,n("ul",null,[n("li",null,[s("下载 "),n("a",b,[s("Win_Flex_Bison"),t(a)]),s(" 。")]),h])]),n("li",null,[f,n("ul",null,[n("li",null,[s("下载 "),n("a",y,[s("Boost"),t(a)]),s(" 。")]),x])]),n("li",null,[w,n("ul",null,[n("li",null,[s("下载安装 "),n("a",T,[s("OpenSSL"),t(a)]),s(" 。")])])])])])]),S,n("ol",null,[n("li",null,[n("p",null,[s("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"),_,n("a",I,[s("https://stackoverflow.com/questions/63592445/ld-unsupported-tapi-file-type-tapi-tbd-in-yaml-file/65518087#65518087"),t(a)])])]),C])])}const P=l(c,[["render",D],["__file","Programming-Cpp-Native-API.html.vue"]]),M=JSON.parse('{"path":"/zh/UserGuide/latest/API/Programming-Cpp-Native-API.html","title":"C++ 原生接口","lang":"zh-CN","frontmatter":{"description":"C++ 原生接口 依赖 Java 8+ Maven 3.5+ Flex Bison 2.7+ Boost 1.56+ OpenSSL 1.0+ GCC 5.5.0+ 安装 安装相关依赖 MAC 安装 Bison :Mac 环境下预安装了 Bison 2.3 版本,但该版本过低不能够用来编译 Thrift。 使用 Bison 2.3 版本会报以下错误: ...","head":[["link",{"rel":"alternate","hreflang":"en-us","href":"https://iotdb.apache.org/UserGuide/latest/API/Programming-Cpp-Native-API.html"}],["meta",{"property":"og:url","content":"https://iotdb.apache.org/zh/UserGuide/latest/API/Programming-Cpp-Native-API.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 依赖 Java 8+ Maven 3.5+ Flex Bison 2.7+ Boost 1.56+ OpenSSL 1.0+ GCC 5.5.0+ 安装 安装相关依赖 MAC 安装 Bison :Mac 环境下预安装了 Bison 2.3 版本,但该版本过低不能够用来编译 Thrift。 使用 Bison 2.3 版本会报以下错误: ..."}],["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":"2024-03-07T04:02:51.000Z"}],["meta",{"property":"article:modified_time","content":"2024-03-07T04:02:51.000Z"}],["script",{"type":"application/ld+json"},"{\\"@context\\":\\"https://schema.org\\",\\"@type\\":\\"Article\\",\\"headline\\":\\"C++ 原生接口\\",\\"image\\":[\\"\\"],\\"dateModified\\":\\"2024-03-07T04:02:51.000Z\\",\\"author\\":[]}"]]},"headers":[{"level":2,"title":"依赖","slug":"依赖","link":"#依赖","children":[]},{"level":2,"title":"安装","slug":"安装","link":"#安装","children":[{"level":3,"title":"安装相关依赖","slug":"安装相关依赖","link":"#安装相关依赖","children":[]},{"level":3,"title":"执行编译","slug":"执行编译","link":"#执行编译","children":[]},{"level":3,"title":"编译 Q&A","slug":"编译-q-a","link":"#编译-q-a","children":[]}]},{"level":2,"title":"基本接口说明","slug":"基本接口说明","link":"#基本接口说明","children":[{"level":3,"title":"初始化","slug":"初始化","link":"#初始化","children":[]},{"level":3,"title":"数据定义接口(DDL)","slug":"数据定义接口-ddl","link":"#数据定义接口-ddl","children":[]},{"level":3,"title":"数据操作接口(DML)","slug":"数据操作接口-dml","link":"#数据操作接口-dml","children":[]},{"level":3,"title":"IoTDB-SQL 接口","slug":"iotdb-sql-接口","link":"#iotdb-sql-接口","children":[]}]},{"level":2,"title":"示例代码","slug":"示例代码","link":"#示例代码","children":[]},{"level":2,"title":"FAQ","slug":"faq","link":"#faq","children":[{"level":3,"title":"Thrift 编译相关问题","slug":"thrift-编译相关问题","link":"#thrift-编译相关问题","children":[]}]}],"git":{"createdTime":1688958677000,"updatedTime":1709784171000,"contributors":[{"name":"CritasWang","email":"critas@outlook.com","commits":1},{"name":"wanghui42","email":"105700158+wanghui42@users.noreply.github.com","commits":1}]},"readingTime":{"minutes":10.81,"words":3242},"filePathRelative":"zh/UserGuide/latest/API/Programming-Cpp-Native-API.md","localizedDate":"2023年7月10日","autoDesc":true}');export{P as comp,M as data}; |