Merge branch '2.6' into cases/TS-1577

3dba1fbc · Ping Xiao · 7e06a70e · 5d3fe43a · 3dba1fbc · 3dba1fbc
1000 changed file
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
+# [Choice] Ubuntu version (use jammy or bionic on local arm64/Apple Silicon): jammy, focal, bionic
+ARG VARIANT="bullseye"
+FROM mcr.microsoft.com/vscode/devcontainers/base:0-${VARIANT}
+# FROM ubuntu:20.04
+# Options for setup script
+# ARG INSTALL_ZSH="true"
+# ARG UPGRADE_PACKAGES="true"
+ADD sources.list /etc/apt/
+RUN apt-get update && apt-get -y install tree vim tmux python3-pip gcc cmake build-essential git gdb
\ No newline at end of file
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
+{
+	"name": "Ubuntu",
+	"build": {
+		"dockerfile": "Dockerfile",
+		// Update 'VARIANT' to pick an Ubuntu version: jammy / ubuntu-22.04, focal / ubuntu-20.04, bionic /ubuntu-18.04
+		// Use ubuntu-22.04 or ubuntu-18.04 on local arm64/Apple Silicon.
+		"args": { "VARIANT": "ubuntu-20.04" }
+	},
+	"runArgs": [
+		"--cap-add=SYS_PTRACE",
+		"--security-opt",
+		"seccomp=unconfined"
+	],
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+	// Use 'postCreateCommand' to run commands after the container is created.
+	// "postCreateCommand": "uname -a",
+	// Comment out to connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
+	"remoteUser": "root",
+	"extensions": [
+		"ms-vscode.cpptools",
+		"ms-vscode.cmake-tools",
+		"austin.code-gnu-global",
+		"visualstudioexptteam.vscodeintel",
+		"eamodio.gitlens",
+		"matepek.vscode-catch2-test-adapter",
+		"spmeesseman.vscode-taskexplorer",
+		"cschlosser.doxdocgen",
+		"urosvujosevic.explorer-manager"
+	]
+}
--- a/.devcontainer/sources.list
+++ b/.devcontainer/sources.list
+deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal main restricted
+deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-updates main restricted
+deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal universe
+deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-updates universe
+deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal multiverse
+deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-updates multiverse
+deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
+deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-security main restricted
+deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-security universe
+deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-security multiverse
\ No newline at end of file
--- a/.gitignore
+++ b/.gitignore
@@ -5,6 +5,8 @@ build/
 cmake-build-debug/
 cmake-build-release/
 cscope.out
+cscope.files
+tags
 .DS_Store
 debug/
 release/

--- a/Jenkinsfile2
+++ b/Jenkinsfile2
@@ -7,7 +7,8 @@ def sync_source() {
    sh '''
        hostname
        date
-        '''
+        env
+    '''
    sh '''
        cd ${WKC}
        [ -f src/connector/grafanaplugin/README.md ] && rm -f src/connector/grafanaplugin/README.md > /dev/null || echo "failed to remove grafanaplugin README.md"
@@ -57,6 +58,7 @@ def sync_source() {
        [ -f src/connector/grafanaplugin/README.md ] && rm -f src/connector/grafanaplugin/README.md > /dev/null || echo "failed to remove grafanaplugin README.md"
        git pull >/dev/null
        git clean -dfx
+        git log -5
    '''
    script {
        if (env.CHANGE_TARGET == 'master') {
@@ -90,6 +92,7 @@ def sync_source() {
        cd ${WK}
        git pull >/dev/null
        git clean -dfx
+        git log -5
    '''
    script {
        if (env.CHANGE_URL =~ /\/TDengine\//) {
@@ -98,16 +101,13 @@ def sync_source() {
                cd ${WKC}
                git fetch origin +refs/pull/${CHANGE_ID}/merge
                git checkout -qf FETCH_HEAD
+                git log -5
-                if [ ! -d src/connector/python/.github ]; then
+            '''
-                    rm -rf src/connector/python/* || :
+            sh '''
-                    rm -rf src/connector/python/.* || :
+                cd ${WKC}
-                    git clone --depth 1 https://github.com/taosdata/taos-connector-python src/connector/python || echo "failed to clone python connector"
+                rm -rf src/connector/python
-                else
+                mkdir -p src/connector/python
-                    cd src/connector/python || echo "src/connector/python not exist"
+                git clone --depth 1 https://github.com/taosdata/taos-connector-python src/connector/python || echo "failed to clone python connector"
-                    git pull || :
-                    cd ${WKC}
-                fi
            '''
        } else if (env.CHANGE_URL =~ /\/TDinternal\//) {
            sh '''
@@ -115,16 +115,13 @@ def sync_source() {
                cd ${WK}
                git fetch origin +refs/pull/${CHANGE_ID}/merge
                git checkout -qf FETCH_HEAD
+                git log -5
-                if [ ! -d community/src/connector/python/.github ]; then
+            '''
-                    rm -rf community/src/connector/python/* || :
+            sh '''
-                    rm -rf community/src/connector/python/.* || :
+                cd ${WKC}
-                    git clone --depth 1 https://github.com/taosdata/taos-connector-python community/src/connector/python || echo "failed to clone python connector"
+                rm -rf src/connector/python
-                else
+                mkdir -p src/connector/python
-                    cd community/src/connector/python || echo "community/src/connector/python not exist"
+                git clone --depth 1 https://github.com/taosdata/taos-connector-python src/connector/python || echo "failed to clone python connector"
-                    git pull || :
-                    cd ${WK}
-                fi
            '''
        } else {
            sh '''
@@ -136,16 +133,6 @@ def sync_source() {
        cd ${WKC}
        git submodule update --init --recursive
    '''
-    sh '''
-        cd ${WKC}
-        git branch
-        git log -5
-    '''
-    sh '''
-        cd ${WK}
-        git branch
-        git log -5
-    '''
 }
 def pre_test() {
    sync_source()
@@ -157,6 +144,7 @@ def pre_test() {
        go env -w GO111MODULE=on
        cmake .. -DBUILD_HTTP=false -DBUILD_TOOLS=true > /dev/null
        make -j8 >/dev/null
+        make install
    '''
    return 1
 }
@@ -173,8 +161,155 @@ def pre_test_mac() {
    '''
    return 1
 }
+def pre_test_win(){
+    bat '''
+        hostname
+        ipconfig
+        set
+        date /t
+        time /t
+        taskkill /f /t /im python.exe
+        taskkill /f /t /im bash.exe
+        taskkill /f /t /im taosd.exe
+        rd /s /Q %WIN_INTERNAL_ROOT%\\debug || echo "no debug folder"
+        echo "clean environment done"
+        exit 0
+    '''
+    bat '''
+        cd %WIN_INTERNAL_ROOT%
+        git reset --hard
+    '''
+    bat '''
+        cd %WIN_COMMUNITY_ROOT%
+        git reset --hard
+    '''
+    script {
+        if (env.CHANGE_TARGET == 'master') {
+            bat '''
+                cd %WIN_INTERNAL_ROOT%
+                git checkout master
+            '''
+            bat '''
+                cd %WIN_COMMUNITY_ROOT%
+                git checkout master
+            '''
+        } else if (env.CHANGE_TARGET == '2.0') {
+            bat '''
+                cd %WIN_INTERNAL_ROOT%
+                git checkout 2.0
+            '''
+            bat '''
+                cd %WIN_COMMUNITY_ROOT%
+                git checkout 2.0
+            '''
+        } else if (env.CHANGE_TARGET == '2.4') {
+            bat '''
+                cd %WIN_INTERNAL_ROOT%
+                git checkout 2.4
+            '''
+            bat '''
+                cd %WIN_COMMUNITY_ROOT%
+                git checkout 2.4
+            '''
+        } else if (env.CHANGE_TARGET == '2.6') {
+            bat '''
+                cd %WIN_INTERNAL_ROOT%
+                git checkout 2.6
+            '''
+            bat '''
+                cd %WIN_COMMUNITY_ROOT%
+                git checkout 2.6
+            '''
+        } else {
+            bat '''
+                cd %WIN_INTERNAL_ROOT%
+                git checkout develop
+            '''
+            bat '''
+                cd %WIN_COMMUNITY_ROOT%
+                git checkout develop
+            '''
+        }
+    }
+    bat '''
+        cd %WIN_INTERNAL_ROOT%
+        git pull
+    '''
+    bat '''
+        cd %WIN_COMMUNITY_ROOT%
+        git remote prune origin
+        git pull
+    '''
+    bat '''
+        cd %WIN_INTERNAL_ROOT%
+        git branch
+        git log -5
+    '''
+    bat '''
+        cd %WIN_COMMUNITY_ROOT%
+        git branch
+        git log -5
+    '''
+    script {
+        if (env.CHANGE_URL =~ /\/TDengine\//) {
+            bat '''
+                echo "match /TDengine/ repository"
+                cd %WIN_COMMUNITY_ROOT%
+                git fetch origin +refs/pull/%CHANGE_ID%/merge
+                git checkout -qf FETCH_HEAD
+                git log -5
+            '''
+        } else if (env.CHANGE_URL =~ /\/TDinternal\//) {
+            bat '''
+                echo "match /TDinternal/ repository"
+                cd %WIN_INTERNAL_ROOT%
+                git fetch origin +refs/pull/%CHANGE_ID%/merge
+                git checkout -qf FETCH_HEAD
+                git log -5
+            '''
+        } else {
+            bat '''
+                echo "unmatched reposiotry %CHANGE_URL%"
+            '''
+        }
+    }
+    bat '''
+        cd %WIN_COMMUNITY_ROOT%
+        git submodule update --init --recursive
+    '''
+    /*bat '''
+        cd %WIN_CONNECTOR_ROOT%
+        git branch
+        git reset --hard
+        git pull
+    '''
+    bat '''
+        cd %WIN_CONNECTOR_ROOT%
+        git log -5
+    '''*/
+}
+def pre_test_build_win() {
+    bat '''
+        echo "building ..."
+        time /t
+        cd %WIN_INTERNAL_ROOT%
+        mkdir debug
+        cd debug
+        time /t
+        call "C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\Community\\VC\\Auxiliary\\Build\\vcvarsall.bat" x64
+        set CL=/MP8
+        echo ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> cmake"
+        time /t
+        cmake .. -G "NMake Makefiles JOM" || exit 7
+        echo ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> jom -j 6"
+        time /t
+        jom -j 6 || exit 8
+        time /t
+    '''
+    return 1
+}
 pipeline {
-    agent {label " dispatcher "}
+    agent none
    options { skipDefaultCheckout() }
    environment{
        WK = '/var/data/jenkins/workspace/TDinternal'
@@ -182,18 +317,7 @@ pipeline {
        LOGDIR = '/var/data/jenkins/workspace/log'
    }
    stages {
-        stage ('pre_build') {
+        stage('run test') {
-            steps {
-                sh '''
-                    date
-                    pwd
-                    env
-                    hostname
-                '''
-            }
-        }
-        stage ('Parallel build stage') {
-            //only build pr
            options { skipDefaultCheckout() }
            when {
                allOf {
@@ -202,103 +326,104 @@ pipeline {
                }
            }
            parallel {
-                stage ('dispatcher sync source') {
+                stage ('build arm64') {
-                    steps {
+                    agent {label " worker07_arm64 || worker09_arm64 "}
-                        timeout(time: 20, unit: 'MINUTES') {
-                            sync_source()
-                            script {
-                                sh '''
-                                    echo "dispatcher ready"
-                                    date
-                                '''
-                            }
-                        }
-                    }
-                }
-                stage ('build worker01') {
-                    agent {label " worker01 "}
                    steps {
                        timeout(time: 20, unit: 'MINUTES') {
                            pre_test()
                            script {
                                sh '''
-                                    echo "worker01 build done"
+                                    echo "arm64 build done"
                                    date
                                '''
                            }
                        }
                    }
                }
-                stage ('build worker02') {
+                stage ('build Mac') {
-                    agent {label " worker02 "}
+                    agent {label " Mac_catalina "}
                    steps {
                        timeout(time: 20, unit: 'MINUTES') {
-                            pre_test()
+                            pre_test_mac()
                            script {
                                sh '''
-                                    echo "worker02 build done"
+                                    echo "Mac build done"
                                    date
                                '''
                            }
                        }
                    }
                }
-            }
+                stage('build win') {
-        }
+                    agent {label " windows10_05 || windows10_06 "}
-        stage('run test') {
+                    environment{
-            options { skipDefaultCheckout() }
+                        WIN_INTERNAL_ROOT="C:\\workspace\\${env.EXECUTOR_NUMBER}\\TDinternal"
-            when {
+                        WIN_COMMUNITY_ROOT="C:\\workspace\\${env.EXECUTOR_NUMBER}\\TDinternal\\community"
-                allOf {
+                        WIN_SYSTEM_TEST_ROOT="C:\\workspace\\${env.EXECUTOR_NUMBER}\\TDinternal\\community\\tests\\system-test"
-                    changeRequest()
+                        WIN_CONNECTOR_ROOT="C:\\workspace\\${env.EXECUTOR_NUMBER}\\taos-connector-python"
-                    not { expression { env.CHANGE_BRANCH =~ /docs\// }}
-                }
-            }
-            parallel {
-                stage ('build worker07_arm64') {
-                    agent {label " worker07_arm64 "}
-                    steps {
-                        timeout(time: 20, unit: 'MINUTES') {
-                            pre_test()
-                            script {
-                                sh '''
-                                    echo "worker07_arm64 build done"
-                                    date
-                                '''
-                            }
-                        }
                    }
-                }
-                stage ('build Mac_catalina ') {
-                    agent {label " Mac_catalina "}
                    steps {
                        timeout(time: 20, unit: 'MINUTES') {
-                            pre_test_mac()
+                            pre_test_win()
-                            script {
+                            pre_test_build_win()
-                                sh '''
-                                    echo "Mac_catalina build done"
-                                    date
-                                '''
-                            }
                        }
                    }
                }
                stage('run cases') {
+                    agent {label " worker01 || worker02 "}
                    steps {
                        sh '''
                            date
+                            pwd
                            hostname
                        '''
-                        catchError(buildResult: 'FAILURE', stageResult: 'FAILURE') {
+                        timeout(time: 15, unit: 'MINUTES') {
-                            timeout(time: 20, unit: 'MINUTES') {
+                            pre_test()
+                            script {
                                sh '''
+                                    echo "Linux build done"
                                    date
-                                    cd ${WKC}/tests/parallel_test
-                                    time ./run.sh -m m.json -t cases.task -l ${LOGDIR} -b ${BRANCH_NAME}
-                                    date
-                                    hostname
                                '''
                            }
                        }
+                        catchError(buildResult: 'FAILURE', stageResult: 'FAILURE') {
+                            timeout(time: 60, unit: 'MINUTES') {
+                                script {
+                                    def extra_param = ""
+                                    def log_server_file = "/home/log_server.json"
+                                    def timeout_cmd = ""
+                                    if (fileExists(log_server_file)) {
+                                        def log_server_enabled = sh (
+                                            script: 'jq .enabled ' + log_server_file,
+                                            returnStdout: true
+                                        ).trim()
+                                        def timeout_param = sh (
+                                            script: 'jq .timeout ' + log_server_file,
+                                            returnStdout: true
+                                        ).trim()
+                                        if (timeout_param != "null" &&  timeout_param != "0") {
+                                            timeout_cmd = "timeout " + timeout_param
+                                        }
+                                        if (log_server_enabled == "1") {
+                                            def log_server = sh (
+                                                script: 'jq .server ' + log_server_file + ' | sed "s/\\\"//g"',
+                                                returnStdout: true
+                                            ).trim()
+                                            if (log_server != "null" && log_server != "") { 
+                                                extra_param = "-w " + log_server
+                                            }
+                                        }
+                                    }
+                                    sh '''
+                                        date
+                                        cd ${WKC}/tests/parallel_test
+                                        ''' + timeout_cmd + ''' time ./run.sh -m /home/m.json -t cases.task -l ${LOGDIR} -b ${BRANCH_NAME} ''' + extra_param + '''
+                                        date
+                                        hostname
+                                    '''
+                                }
+                            }
+                        }
                    }
                }
            }    

--- a/deps/TSZ/sz/src/CompressElement.c
+++ b/deps/TSZ/sz/src/CompressElement.c
@@ -7,7 +7,9 @@
 *      See COPYRIGHT in top-level directory.
 */
 #ifndef WINDOWS
+#if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
  #pragma GCC diagnostic push
+#endif
  #pragma GCC diagnostic ignored "-Wchar-subscripts"
 #endif
@@ -233,5 +235,7 @@ INLINE void updateLossyCompElement_Float(unsigned char* diffBytes, unsigned char
 }
 #ifndef WINDOWS
+#if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
  #pragma GCC diagnostic pop
 #endif
\ No newline at end of file
+#endif
--- a/deps/TSZ/sz/src/Huffman.c
+++ b/deps/TSZ/sz/src/Huffman.c
@@ -117,7 +117,7 @@ node qremove(HuffmanTree* huffmanTree)
 /**
 * @out1 should be set to 0.
 * @out2 should be 0 as well.
- * @index: the index of the byte
+ * @idx: the idx of the byte
 * */
 void build_code(HuffmanTree *huffmanTree, node n, int len, unsigned long out1, unsigned long out2)
 {
@@ -136,8 +136,8 @@ void build_code(HuffmanTree *huffmanTree, node n, int len, unsigned long out1, u
 		huffmanTree->cout[n->c] = (unsigned char)len;
 		return;
 	}
-	int index = len >> 6; //=len/64
+	int idx = len >> 6; //=len/64
-	if(index == 0)
+	if(idx == 0)
 	{
 		out1 = out1 << 1;
 		out1 = out1 | 0;
@@ -164,13 +164,13 @@ void build_code(HuffmanTree *huffmanTree, node n, int len, unsigned long out1, u
 * */
 void init(HuffmanTree* huffmanTree, int *s, size_t length)
 {
-	size_t i, index;
+	size_t i, idx;
 	size_t *freq = (size_t *)malloc(huffmanTree->allNodes*sizeof(size_t));
 	memset(freq, 0, huffmanTree->allNodes*sizeof(size_t));
 	for(i = 0;i < length;i++)
 	{
-		index = s[i];
+		idx = s[i];
-		freq[index]++;
+		freq[idx]++;
 	}
 	for (i = 0; i < huffmanTree->allNodes; i++)

--- a/deps/TSZ/sz/src/TightDataPointStorageD.c
+++ b/deps/TSZ/sz/src/TightDataPointStorageD.c
@@ -25,9 +25,9 @@ void new_TightDataPointStorageD_Empty(TightDataPointStorageD **this)
 int new_TightDataPointStorageD_fromFlatBytes(TightDataPointStorageD **this, unsigned char* flatBytes, size_t flatBytesLength, sz_exedata* pde_exe, sz_params* pde_params)
 {
 	new_TightDataPointStorageD_Empty(this);
-	size_t i, index = 0;
+	size_t i, idx = 0;
-	unsigned char version = flatBytes[index++]; //3
+	unsigned char version = flatBytes[idx++]; //3
-	unsigned char sameRByte = flatBytes[index++]; //1
+	unsigned char sameRByte = flatBytes[idx++]; //1
    // parse data format
 	switch (version)
@@ -46,15 +46,15 @@ int new_TightDataPointStorageD_fromFlatBytes(TightDataPointStorageD **this, unsi
 	pde_params->accelerate_pw_rel_compression = (sameRByte & 0x08) >> 3;
 	int errorBoundMode = SZ_ABS;
-	convertBytesToSZParams(&(flatBytes[index]), pde_params, pde_exe);
+	convertBytesToSZParams(&(flatBytes[idx]), pde_params, pde_exe);
-	index += MetaDataByteLength_double;
+	idx += MetaDataByteLength_double;
 	int isRegression = (sameRByte >> 7) & 0x01;
 	unsigned char dsLengthBytes[8];
 	for (i = 0; i < pde_exe->SZ_SIZE_TYPE; i++)
-		dsLengthBytes[i] = flatBytes[index++];
+		dsLengthBytes[i] = flatBytes[idx++];
 	(*this)->dataSeriesLength = bytesToSize(dsLengthBytes, pde_exe->SZ_SIZE_TYPE);
 	if((*this)->isLossless==1)
@@ -65,7 +65,7 @@ int new_TightDataPointStorageD_fromFlatBytes(TightDataPointStorageD **this, unsi
 	else if(same==1)
 	{
 		(*this)->allSameData = 1;
-		(*this)->exactMidBytes = &(flatBytes[index]);
+		(*this)->exactMidBytes = &(flatBytes[idx]);
 		return errorBoundMode;
 	}
 	else
@@ -74,42 +74,42 @@ int new_TightDataPointStorageD_fromFlatBytes(TightDataPointStorageD **this, unsi
 	if(isRegression == 1)
 	{
 		(*this)->raBytes_size = flatBytesLength - 3 - 1 - MetaDataByteLength_double - pde_exe->SZ_SIZE_TYPE;
-		(*this)->raBytes = &(flatBytes[index]);
+		(*this)->raBytes = &(flatBytes[idx]);
 		return errorBoundMode;
 	}						
 	unsigned char byteBuf[8];
 	for (i = 0; i < 4; i++)
-		byteBuf[i] = flatBytes[index++];
+		byteBuf[i] = flatBytes[idx++];
 	int max_quant_intervals = bytesToInt_bigEndian(byteBuf);// 4	
 	pde_params->maxRangeRadius = max_quant_intervals/2;
 	for (i = 0; i < 4; i++)
-		byteBuf[i] = flatBytes[index++];
+		byteBuf[i] = flatBytes[idx++];
 	(*this)->intervals = bytesToInt_bigEndian(byteBuf);// 4	
 	for (i = 0; i < 8; i++)
-		byteBuf[i] = flatBytes[index++];
+		byteBuf[i] = flatBytes[idx++];
 	(*this)->medianValue = bytesToDouble(byteBuf);//8
-	(*this)->reqLength = flatBytes[index++]; //1
+	(*this)->reqLength = flatBytes[idx++]; //1
 	for (i = 0; i < 8; i++)
-		byteBuf[i] = flatBytes[index++];
+		byteBuf[i] = flatBytes[idx++];
 	(*this)->realPrecision = bytesToDouble(byteBuf);//8
 	for (i = 0; i < pde_exe->SZ_SIZE_TYPE; i++)
-	    byteBuf[i] = flatBytes[index++];
+	    byteBuf[i] = flatBytes[idx++];
 	(*this)->typeArray_size = bytesToSize(byteBuf, pde_exe->SZ_SIZE_TYPE);
 	for (i = 0; i < pde_exe->SZ_SIZE_TYPE; i++)
-		byteBuf[i] = flatBytes[index++];
+		byteBuf[i] = flatBytes[idx++];
 	(*this)->exactDataNum = bytesToSize(byteBuf, pde_exe->SZ_SIZE_TYPE);// ST
 	for (i = 0; i < pde_exe->SZ_SIZE_TYPE; i++)
-		byteBuf[i] = flatBytes[index++];
+		byteBuf[i] = flatBytes[idx++];
 	(*this)->exactMidBytes_size = bytesToSize(byteBuf, pde_exe->SZ_SIZE_TYPE);// ST
 	size_t logicLeadNumBitsNum = (*this)->exactDataNum * 2;
@@ -122,12 +122,12 @@ int new_TightDataPointStorageD_fromFlatBytes(TightDataPointStorageD **this, unsi
 		(*this)->leadNumArray_size = (logicLeadNumBitsNum >> 3) + 1;
 	}
-	(*this)->typeArray = &flatBytes[index];
+	(*this)->typeArray = &flatBytes[idx];
 	//retrieve the number of states (i.e., stateNum)
 	(*this)->allNodes = bytesToInt_bigEndian((*this)->typeArray); //the first 4 bytes store the stateNum
 	(*this)->stateNum = ((*this)->allNodes+1)/2;	
-	index+=(*this)->typeArray_size;
+	idx+=(*this)->typeArray_size;
    // todo need check length
@@ -135,15 +135,15 @@ int new_TightDataPointStorageD_fromFlatBytes(TightDataPointStorageD **this, unsi
 			- pde_exe->SZ_SIZE_TYPE - pde_exe->SZ_SIZE_TYPE - pde_exe->SZ_SIZE_TYPE
 			- (*this)->leadNumArray_size - (*this)->exactMidBytes_size - (*this)->typeArray_size;
-	(*this)->leadNumArray = &flatBytes[index];
+	(*this)->leadNumArray = &flatBytes[idx];
-	index+=(*this)->leadNumArray_size;
+	idx+=(*this)->leadNumArray_size;
-	(*this)->exactMidBytes = &flatBytes[index];
+	(*this)->exactMidBytes = &flatBytes[idx];
-	index+=(*this)->exactMidBytes_size;
+	idx+=(*this)->exactMidBytes_size;
-	(*this)->residualMidBits = &flatBytes[index];
+	(*this)->residualMidBits = &flatBytes[idx];
 	return errorBoundMode;

--- a/deps/TSZ/sz/src/TightDataPointStorageF.c
+++ b/deps/TSZ/sz/src/TightDataPointStorageF.c
@@ -25,15 +25,15 @@ void new_TightDataPointStorageF_Empty(TightDataPointStorageF **this)
 int new_TightDataPointStorageF_fromFlatBytes(TightDataPointStorageF **this, unsigned char* flatBytes, size_t flatBytesLength, sz_exedata* pde_exe, sz_params* pde_params)
 {
 	new_TightDataPointStorageF_Empty(this);
-	size_t i, index = 0;
+	size_t i, idx = 0;
 	//
 	// parse tdps
 	//
 	// 1 version(1)
-	unsigned char version = flatBytes[index++]; //1
+	unsigned char version = flatBytes[idx++]; //1
-	unsigned char sameRByte = flatBytes[index++]; //1
+	unsigned char sameRByte = flatBytes[idx++]; //1
    // parse data format
 	switch (version)
@@ -51,12 +51,12 @@ int new_TightDataPointStorageF_fromFlatBytes(TightDataPointStorageF **this, unsi
 	pde_exe->SZ_SIZE_TYPE = ((sameRByte & 0x40)>>6)==1?8:4; 				//0100,0000	
 	int errorBoundMode = SZ_ABS;
    // 3 meta(2)   
-	convertBytesToSZParams(&(flatBytes[index]), pde_params, pde_exe);
+	convertBytesToSZParams(&(flatBytes[idx]), pde_params, pde_exe);
-	index += MetaDataByteLength;
+	idx += MetaDataByteLength;
    // 4 element count(4)
 	unsigned char dsLengthBytes[8];
 	for (i = 0; i < pde_exe->SZ_SIZE_TYPE; i++)
-		dsLengthBytes[i] = flatBytes[index++];
+		dsLengthBytes[i] = flatBytes[idx++];
 	(*this)->dataSeriesLength = bytesToSize(dsLengthBytes, pde_exe->SZ_SIZE_TYPE);// 4 or 8		
 	if((*this)->isLossless==1)
 	{
@@ -66,7 +66,7 @@ int new_TightDataPointStorageF_fromFlatBytes(TightDataPointStorageF **this, unsi
 	else if(same==1)
 	{
 		(*this)->allSameData = 1;
-		(*this)->exactMidBytes = &(flatBytes[index]);
+		(*this)->exactMidBytes = &(flatBytes[idx]);
 		return errorBoundMode;
 	}
 	else
@@ -76,40 +76,40 @@ int new_TightDataPointStorageF_fromFlatBytes(TightDataPointStorageF **this, unsi
 	if(isRegression == 1)
 	{
 		(*this)->raBytes_size = flatBytesLength - 1 - 1 - MetaDataByteLength - pde_exe->SZ_SIZE_TYPE;
-		(*this)->raBytes = &(flatBytes[index]);
+		(*this)->raBytes = &(flatBytes[idx]);
 		return errorBoundMode;
 	}			
    // 5 quant intervals(4)   
 	unsigned char byteBuf[8];
 	for (i = 0; i < 4; i++)
-		byteBuf[i] = flatBytes[index++];
+		byteBuf[i] = flatBytes[idx++];
 	int max_quant_intervals = bytesToInt_bigEndian(byteBuf);// 4	
 	pde_params->maxRangeRadius = max_quant_intervals/2;
    // 6 intervals
 	for (i = 0; i < 4; i++)
-		byteBuf[i] = flatBytes[index++];
+		byteBuf[i] = flatBytes[idx++];
 	(*this)->intervals = bytesToInt_bigEndian(byteBuf);// 4	
    // 7 median
 	for (i = 0; i < 4; i++)
-		byteBuf[i] = flatBytes[index++];
+		byteBuf[i] = flatBytes[idx++];
 	(*this)->medianValue = bytesToFloat(byteBuf); //4
 	// 8 reqLength
-	(*this)->reqLength = flatBytes[index++]; //1
+	(*this)->reqLength = flatBytes[idx++]; //1
 	// 9 realPrecision(8)
 	for (i = 0; i < 8; i++)
-		byteBuf[i] = flatBytes[index++];
+		byteBuf[i] = flatBytes[idx++];
 	(*this)->realPrecision = bytesToDouble(byteBuf);//8
 	// 10 typeArray_size
 	for (i = 0; i < pde_exe->SZ_SIZE_TYPE; i++)
-		byteBuf[i] = flatBytes[index++];
+		byteBuf[i] = flatBytes[idx++];
 	(*this)->typeArray_size = bytesToSize(byteBuf, pde_exe->SZ_SIZE_TYPE);// 4		
    // 11 exactNum
 	for (i = 0; i < pde_exe->SZ_SIZE_TYPE; i++)
-		byteBuf[i] = flatBytes[index++];    
+		byteBuf[i] = flatBytes[idx++];    
 	(*this)->exactDataNum = bytesToSize(byteBuf, pde_exe->SZ_SIZE_TYPE);// ST
    // 12 mid size
 	for (i = 0; i < pde_exe->SZ_SIZE_TYPE; i++)
-		byteBuf[i] = flatBytes[index++];
+		byteBuf[i] = flatBytes[idx++];
 	(*this)->exactMidBytes_size = bytesToSize(byteBuf, pde_exe->SZ_SIZE_TYPE);// STqq
 	// calc leadNumArray_size
@@ -124,20 +124,20 @@ int new_TightDataPointStorageF_fromFlatBytes(TightDataPointStorageF **this, unsi
 	}	
    // 13 typeArray
-	(*this)->typeArray = &flatBytes[index]; 
+	(*this)->typeArray = &flatBytes[idx]; 
 	//retrieve the number of states (i.e., stateNum)
 	(*this)->allNodes = bytesToInt_bigEndian((*this)->typeArray); //the first 4 bytes store the stateNum
 	(*this)->stateNum = ((*this)->allNodes+1)/2;	
-	index+=(*this)->typeArray_size;
+	idx+=(*this)->typeArray_size;
    // 14 leadNumArray
-	(*this)->leadNumArray = &flatBytes[index];
+	(*this)->leadNumArray = &flatBytes[idx];
-	index += (*this)->leadNumArray_size;
+	idx += (*this)->leadNumArray_size;
 	// 15 exactMidBytes
-	(*this)->exactMidBytes = &flatBytes[index];
+	(*this)->exactMidBytes = &flatBytes[idx];
-	index+=(*this)->exactMidBytes_size;
+	idx+=(*this)->exactMidBytes_size;
 	// 16 residualMidBits
-	(*this)->residualMidBits = &flatBytes[index];
+	(*this)->residualMidBits = &flatBytes[idx];
    // calc residualMidBits_size
 	(*this)->residualMidBits_size = flatBytesLength - 1 - 1 - MetaDataByteLength - pde_exe->SZ_SIZE_TYPE - 4 - 4 - 4 - 1 - 8 

--- a/deps/cJson/src/cJSON.c
+++ b/deps/cJson/src/cJSON.c
@@ -1683,7 +1683,7 @@ CJSON_PUBLIC(int) cJSON_GetArraySize(const cJSON *array)
    return (int)size;
 }
-static cJSON* get_array_item(const cJSON *array, size_t index)
+static cJSON* get_array_item(const cJSON *array, size_t idx)
 {
    cJSON *current_child = NULL;
@@ -1693,23 +1693,23 @@ static cJSON* get_array_item(const cJSON *array, size_t index)
    }
    current_child = array->child;
-    while ((current_child != NULL) && (index > 0))
+    while ((current_child != NULL) && (idx > 0))
    {
-        index--;
+        idx--;
        current_child = current_child->next;
    }
    return current_child;
 }
-CJSON_PUBLIC(cJSON *) cJSON_GetArrayItem(const cJSON *array, int index)
+CJSON_PUBLIC(cJSON *) cJSON_GetArrayItem(const cJSON *array, int idx)
 {
-    if (index < 0)
+    if (idx < 0)
    {
        return NULL;
    }
-    return get_array_item(array, (size_t)index);
+    return get_array_item(array, (size_t)idx);
 }
 static cJSON *get_object_item(const cJSON * const object, const char * const name, const cJSON_bool case_sensitive)

--- a/docs-cn/05-get-started/index.md
+++ b/docs-cn/05-get-started/index.md
---
-title: 立即开始
-description: '从 Docker，安装包或使用 apt-get 快速安装 TDengine, 通过命令行程序TAOS CLI和工具 taosdemo 快速体验 TDengine 功能'
---
-import Tabs from "@theme/Tabs";
-import TabItem from "@theme/TabItem";
-import PkgInstall from "./\_pkg_install.mdx";
-import AptGetInstall from "./\_apt_get_install.mdx";
-## 安装
-TDengine 完整的软件包包括服务端（taosd）、用于与第三方系统对接并提供 RESTful 接口的 taosAdapter、应用驱动（taosc）、命令行程序 (CLI，taos) 和一些工具软件，目前 2.X 版服务端 taosd 和 taosAdapter 仅在 Linux 系统上安装和运行，后续将支持 Windows、macOS 等系统。应用驱动 taosc 与 TDengine CLI 可以在 Windows 或 Linux 上安装和运行。TDengine 除了提供多种语言的连接器之外，还通过 [taosAdapter](/reference/taosadapter) 提供 [RESTful 接口](/reference/rest-api)。但在 2.4 之前的版本中没有 taosAdapter，RESTful 接口是由 taosd 内置的 HTTP 服务提供的。
-TDengine 支持 X64/ARM64/MIPS64/Alpha64 硬件平台，后续将支持 ARM32、RISC-V 等 CPU 架构。
-<Tabs defaultValue="apt-get">
-<TabItem value="docker" label="Docker">
-如果已经安装了 docker， 只需执行下面的命令。
-```shell
-docker run -d -p 6030-6049:6030-6049 -p 6030-6049:6030-6049/udp tdengine/tdengine
-```
-确定该容器已经启动并且在正常运行
-```shell
-docker ps
-```
-进入该容器并执行 bash
-```shell
-docker exec -it <container name> bash
-```
-然后就可以执行相关的 Linux 命令操作和访问 TDengine
-详细操作方法请参照 [通过 Docker 快速体验 TDengine](/train-faq/docker)。
-:::info
-从 2.4.0.10 开始，除 taosd 以外，Docker 镜像还包含：taos、taosAdapter、taosdump、taosBenchmark、TDinsight 安装脚本和示例代码。启动 Docker 容器时，将同时启动 taosAdapter 和 taosd，实现对 RESTful 的支持。
-:::
-</TabItem>
-<TabItem value="apt-get" label="apt-get">
-<AptGetInstall />
-</TabItem>
-<TabItem value="pkg" label="安装包">
-<PkgInstall />
-</TabItem>
-<TabItem value="src" label="源码">
-如果您希望对 TDengine 贡献代码或对内部实现感兴趣，请参考我们的 [TDengine GitHub 主页](https://github.com/taosdata/TDengine) 下载源码构建和安装.
-下载其他组件、最新 Beta 版及之前版本的安装包，请点击[这里](https://www.taosdata.com/cn/all-downloads/)。
-</TabItem>
-</Tabs>
-## 启动
-安装后，请使用 `systemctl` 命令来启动 TDengine 的服务进程。
-```bash
-systemctl start taosd
-```
-检查服务是否正常工作：
-```bash
-systemctl status taosd
-```
-如果 TDengine 服务正常工作，那么您可以通过 TDengine 的命令行程序 `taos` 来访问并体验 TDengine。
-:::info
- systemctl 命令需要 _root_ 权限来运行，如果您非 _root_ 用户，请在命令前添加 sudo 。
- 为更好的获得产品反馈，改善产品，TDengine 会采集基本的使用信息，但您可以修改系统配置文件 taos.cfg 里的配置参数 telemetryReporting，将其设为 0，就可将其关闭。
- TDengine 采用 FQDN（一般就是 hostname）作为节点的 ID，为保证正常运行，需要给运行 taosd 的服务器配置好 FQDN，在 TDengine CLI 或应用运行的机器配置好 DNS 服务或 hosts 文件，保证 FQDN 能够解析。
- `systemctl stop taosd` 指令在执行后并不会马上停止 TDengine 服务，而是会等待系统中必要的落盘工作正常完成。在数据量很大的情况下，这可能会消耗较长时间。
-TDengine 支持在使用 [`systemd`](https://en.wikipedia.org/wiki/Systemd) 做进程服务管理的 Linux 系统上安装，用 `which systemctl` 命令来检测系统中是否存在 `systemd` 包:
-```bash
-which systemctl
-```
-如果系统中不支持 `systemd`，也可以用手动运行 `/usr/local/taos/bin/taosd` 方式启动 TDengine 服务。
-:::note
-## TDengine 命令行 (CLI)
-为便于检查 TDengine 的状态，执行数据库 (Database) 的各种即席(Ad Hoc)查询，TDengine 提供一命令行应用程序(以下简称为 TDengine CLI) taos。要进入 TDengine 命令行，您只要在安装有 TDengine 的 Linux 终端执行 `taos` 即可。
-```bash
-taos
-```
-如果连接服务成功，将会打印出欢迎消息和版本信息。如果失败，则会打印错误消息出来（请参考 [FAQ](/train-faq/faq) 来解决终端连接服务端失败的问题）。 TDengine CLI 的提示符号如下：
-```cmd
-taos>
-```
-在 TDengine CLI 中，用户可以通过 SQL 命令来创建/删除数据库、表等，并进行数据库(database)插入查询操作。在终端中运行的 SQL 语句需要以分号结束来运行。示例：
-```sql
-create database demo;
-use demo;
-create table t (ts timestamp, speed int);
-insert into t values ('2019-07-15 00:00:00', 10);
-insert into t values ('2019-07-15 01:00:00', 20);
-select * from t;
-           ts            |    speed    |
-========================================
- 2019-07-15 00:00:00.000 |          10 |
- 2019-07-15 01:00:00.000 |          20 |
-Query OK, 2 row(s) in set (0.003128s)
-```
-除执行 SQL 语句外，系统管理员还可以从 TDengine CLI 进行检查系统运行状态、添加删除用户账号等操作。TAOS CLI 连同应用驱动也可以独立安装在 Linux 或 Windows 机器上运行，更多细节请参考 [这里](../reference/taos-shell/)
-## 使用 taosBenchmark 体验写入速度
-启动 TDengine 的服务，在 Linux 终端执行 `taosBenchmark` （曾命名为 `taosdemo`）：
-```bash
-taosBenchmark
-```
-该命令将在数据库 test 下面自动创建一张超级表 meters，该超级表下有 1 万张表，表名为 "d0" 到 "d9999"，每张表有 1 万条记录，每条记录有 (ts, current, voltage, phase) 四个字段，时间戳从 "2017-07-14 10:40:00 000" 到 "2017-07-14 10:40:09 999"，每张表带有标签 location 和 groupId，groupId 被设置为 1 到 10， location 被设置为 "California.SanFrancisco" 或者 "California.LosAngeles"。
-这条命令很快完成 1 亿条记录的插入。具体时间取决于硬件性能，即使在一台普通的 PC 服务器往往也仅需十几秒。
-taosBenchmark 命令本身带有很多选项，配置表的数目、记录条数等等，您可以设置不同参数进行体验，请执行 `taosBenchmark --help` 详细列出。taosBenchmark 详细使用方法请参照 [如何使用 taosBenchmark 对 TDengine 进行性能测试](https://www.taosdata.com/2021/10/09/3111.html)。
-## 使用 TDengine CLI 体验查询速度
-使用上述 taosBenchmark 插入数据后，可以在 TDengine CLI 输入查询命令，体验查询速度。
-查询超级表下记录总条数：
-```sql
-taos> select count(*) from test.meters;
-```
-查询 1 亿条记录的平均值、最大值、最小值等：
-```sql
-taos> select avg(current), max(voltage), min(phase) from test.meters;
-```
-查询 location="California.SanFrancisco" 的记录总条数：
-```sql
-taos> select count(*) from test.meters where location="California.SanFrancisco";
-```
-查询 groupId=10 的所有记录的平均值、最大值、最小值等：
-```sql
-taos> select avg(current), max(voltage), min(phase) from test.meters where groupId=10;
-```
-对表 d10 按 10s 进行平均值、最大值和最小值聚合统计：
-```sql
-taos> select avg(current), max(voltage), min(phase) from test.d10 interval(10s);
-```
--- a/docs-cn/07-develop/01-connect/_connect_c.mdx
+++ b/docs-cn/07-develop/01-connect/_connect_c.mdx
-```c title="原生连接"
-{{#include docs-examples/c/connect_example.c}}
-```
--- a/docs-cn/07-develop/01-connect/_connect_cs.mdx
+++ b/docs-cn/07-develop/01-connect/_connect_cs.mdx
-```csharp title="原生连接"
-{{#include docs-examples/csharp/ConnectExample.cs}}
-```
-:::info
-C# 连接器目前只支持原生连接。
-:::
--- a/docs-cn/07-develop/01-connect/_connect_go.mdx
+++ b/docs-cn/07-develop/01-connect/_connect_go.mdx
-#### 使用数据库访问统一接口
-```go title="原生连接"
-{{#include docs-examples/go/connect/cgoexample/main.go}}
-```
-```go title="REST 连接"
-{{#include docs-examples/go/connect/restexample/main.go}}
-```
-#### 使用高级封装
-也可以使用 driver-go 的 af 包建立连接。这个模块封装了 TDengine 的高级功能, 如：参数绑定、订阅等。
-```go title="使用 af 包建立原生连接"
-{{#include docs-examples/go/connect/afconn/main.go}}
-```
--- a/docs-cn/07-develop/01-connect/_connect_java.mdx
+++ b/docs-cn/07-develop/01-connect/_connect_java.mdx
-```java title="原生连接"
-{{#include docs-examples/java/src/main/java/com/taos/example/JNIConnectExample.java}}
-```
-```java title="REST 连接"
-{{#include docs-examples/java/src/main/java/com/taos/example/RESTConnectExample.java:main}}
-```
-使用 REST 连接时，如果查询数据量比较大，还可开启批量拉取功能。
-```java title="开启批量拉取功能" {4}
-{{#include docs-examples/java/src/main/java/com/taos/example/WSConnectExample.java:main}}
-```
-更多连接参数配置，参考[Java 连接器](/reference/connector/java)
--- a/docs-cn/07-develop/01-connect/_connect_node.mdx
+++ b/docs-cn/07-develop/01-connect/_connect_node.mdx
-```js title="原生连接"
-{{#include docs-examples/node/nativeexample/connect.js}}
-```
-```js title="REST 连接"
-{{#include docs-examples/node/restexample/connect.js}}
-```
--- a/docs-cn/07-develop/01-connect/_connect_php.mdx
+++ b/docs-cn/07-develop/01-connect/_connect_php.mdx
-```php title="原生连接"
-{{#include docs-examples/php/connect.php}}
-```
--- a/docs-cn/07-develop/01-connect/_connect_python.mdx
+++ b/docs-cn/07-develop/01-connect/_connect_python.mdx
-```python title="原生连接"
-{{#include docs-examples/python/connect_example.py}}
-```
--- a/docs-cn/07-develop/01-connect/_connect_r.mdx
+++ b/docs-cn/07-develop/01-connect/_connect_r.mdx
-```r title="原生连接"
-{{#include docs-examples/R/connect_native.r:demo}}
-```
--- a/docs-cn/07-develop/01-connect/_connect_rust.mdx
+++ b/docs-cn/07-develop/01-connect/_connect_rust.mdx
-```rust title="原生连接/REST 连接"
-{{#include docs-examples/rust/nativeexample/examples/connect.rs}}
-```
-:::note
-对于 Rust 连接器， 连接方式的不同只体现在使用的特性不同。如果启用了 "rest" 特性，那么只有 RESTful 的实现会被编译进来。
-:::
--- a/docs-cn/07-develop/01-connect/index.md
+++ b/docs-cn/07-develop/01-connect/index.md
---
-title: 建立连接
-description: "本节介绍如何使用连接器建立与 TDengine 的连接，给出连接器安装、连接的简单说明。"
---
-import Tabs from "@theme/Tabs";
-import TabItem from "@theme/TabItem";
-import ConnJava from "./_connect_java.mdx";
-import ConnGo from "./_connect_go.mdx";
-import ConnRust from "./_connect_rust.mdx";
-import ConnNode from "./_connect_node.mdx";
-import ConnPythonNative from "./_connect_python.mdx";
-import ConnCSNative from "./_connect_cs.mdx";
-import ConnC from "./_connect_c.mdx";
-import ConnR from "./_connect_r.mdx";
-import ConnPHP from "./_connect_php.mdx";
-import InstallOnWindows from "../../14-reference/03-connector/_linux_install.mdx";
-import InstallOnLinux from "../../14-reference/03-connector/_windows_install.mdx";
-import VerifyLinux from "../../14-reference/03-connector/_verify_linux.mdx";
-import VerifyWindows from "../../14-reference/03-connector/_verify_windows.mdx";
-TDengine 提供了丰富的应用程序开发接口，为了便于用户快速开发自己的应用，TDengine 支持了多种编程语言的连接器，其中官方连接器包括支持 C/C++、Java、Python、Go、Node.js、C#、Rust、Lua（社区贡献）和 PHP （社区贡献）的连接器。这些连接器支持使用原生接口（taosc）和 REST 接口（部分语言暂不支持）连接 TDengine 集群。社区开发者也贡献了多个非官方连接器，例如 ADO.NET 连接器、Lua 连接器和 PHP 连接器。
-## 连接器建立连接的方式
-连接器建立连接的方式，TDengine 提供两种:
-1. 通过 taosAdapter 组件提供的 REST API 建立与 taosd 的连接，这种连接方式下文中简称“REST 连接”
-2. 通过客户端驱动程序 taosc 直接与服务端程序 taosd 建立连接，这种连接方式下文中简称“原生连接”。
-无论使用何种方式建立连接，连接器都提供了相同或相似的 API 操作数据库，都可以执行 SQL 语句，只是初始化连接的方式稍有不同，用户在使用上不会感到什么差别。
-关键不同点在于：
-1. 使用 REST 连接，用户无需安装客户端驱动程序 taosc，具有跨平台易用的优势，但性能要下降 30%左右。
-2. 使用原生连接可以体验 TDengine 的全部功能，如[参数绑定接口](/reference/connector/cpp#参数绑定-api)、[订阅](/reference/connector/cpp#订阅和消费-api)等等。
-## 安装客户端驱动 taosc
-如果选择原生连接，而且应用程序不在 TDengine 同一台服务器上运行，你需要先安装客户端驱动，否则可以跳过此一步。为避免客户端驱动和服务端不兼容，请使用一致的版本。
-### 安装步骤
-<Tabs defaultValue="linux" groupId="os">
-  <TabItem value="linux" label="Linux">
-    <InstallOnWindows />
-  </TabItem>
-  <TabItem value="windows" label="Windows">
-    <InstallOnLinux />
-  </TabItem>
-</Tabs>
-### 安装验证
-以上安装和配置完成后，并确认 TDengine 服务已经正常启动运行，此时可以执行安装包里带有的 TDengine 命令行程序 taos 进行登录。
-<Tabs defaultValue="linux" groupId="os">
-  <TabItem value="linux" label="Linux">
-    <VerifyLinux />
-  </TabItem>
-  <TabItem value="windows" label="Windows">
-    <VerifyWindows />
-  </TabItem>
-</Tabs>
-## 安装连接器
-<Tabs groupId="lang">
-<TabItem label="Java" value="java">
-如果使用 maven 管理项目，只需在 pom.xml 中加入以下依赖。
-```xml
-<dependency>
-  <groupId>com.taosdata.jdbc</groupId>
-  <artifactId>taos-jdbcdriver</artifactId>
-  <version>2.0.38</version>
-</dependency>
-```
-</TabItem>
-<TabItem label="Python" value="python">
-使用 `pip` 从 PyPI 安装:
-```
-pip install taospy
-```
-从 Git URL 安装：
-```
-pip install git+https://github.com/taosdata/taos-connector-python.git
-```
-</TabItem>
-<TabItem label="Go" value="go">
-编辑 `go.mod` 添加 `driver-go` 依赖即可。
-```go-mod title=go.mod
-module goexample
-go 1.17
-require github.com/taosdata/driver-go/v2 develop
-```
-:::note
-driver-go 使用 cgo 封装了 taosc 的 API。cgo 需要使用 gcc 编译 C 的源码。因此需要确保你的系统上有 gcc。
-:::
-</TabItem>
-<TabItem label="Rust" value="rust">
-编辑 `Cargo.toml` 添加 `libtaos` 依赖即可。
-```toml title=Cargo.toml
-[dependencies]
-libtaos = { version = "0.4.2"}
-```
-:::info
-Rust 连接器通过不同的特性区分不同的连接方式。如果要建立 REST 连接，需要开启 `rest` 特性：
-```toml
-libtaos = { version = "*", features = ["rest"] }
-```
-:::
-</TabItem>
-<TabItem label="Node.js" value="node">
-Node.js 连接器通过不同的包提供不同的连接方式。
-1. 安装 Node.js 原生连接器
-  ```
-  npm i td2.0-connector
-  ```
-:::note
-推荐 Node 版本大于等于 `node-v12.8.0` 小于 `node-v13.0.0`
-::: 
-2. 安装 Node.js REST 连接器
-  ```
-  npm i td2.0-rest-connector
-  ```
-</TabItem>
-<TabItem label="C#" value="csharp">
-编辑项目配置文件中添加 [TDengine.Connector](https://www.nuget.org/packages/TDengine.Connector/) 的引用即可：
-```xml title=csharp.csproj {12}
-<Project Sdk="Microsoft.NET.Sdk">
-  <PropertyGroup>
-    <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
-    <ImplicitUsings>enable</ImplicitUsings>
-    <Nullable>enable</Nullable>
-    <StartupObject>TDengineExample.AsyncQueryExample</StartupObject>
-  </PropertyGroup>
-  <ItemGroup>
-    <PackageReference Include="TDengine.Connector" Version="1.0.6" />
-  </ItemGroup>
-</Project>
-```
-也可通过 dotnet 命令添加：
-```
-dotnet add package TDengine.Connector
-```
-:::note
-以下示例代码，均基于 dotnet6.0，如果使用其它版本，可能需要做适当调整。
-:::
-</TabItem>
-<TabItem label="R" value="r">
-1. 下载 [taos-jdbcdriver-version-dist.jar](https://repo1.maven.org/maven2/com/taosdata/jdbc/taos-jdbcdriver/2.0.38/)。
-2. 安装 R 的依赖包`RJDBC`：
-```R
-install.packages("RJDBC")
-```
-</TabItem>
-<TabItem label="C" value="c">
-如果已经安装了 TDengine 服务端软件或 TDengine 客户端驱动 taosc， 那么已经安装了 C 连接器，无需额外操作。
-<br/>
-</TabItem>
-<TabItem label="PHP" value="php">
-**下载代码并解压：**
-```shell
-curl -L -o php-tdengine.tar.gz https://github.com/Yurunsoft/php-tdengine/archive/refs/tags/v1.0.2.tar.gz \
-&& mkdir php-tdengine \
-&& tar -xzf php-tdengine.tar.gz -C php-tdengine --strip-components=1
-```
-> 版本 `v1.0.0` 可替换为任意更新的版本，可在 Release 中查看最新版本。
-**非 Swoole 环境：**
-```shell
-phpize && ./configure && make -j && make install
-```
-**手动指定 TDengine 目录：**
-```shell
-phpize && ./configure --with-tdengine-dir=/usr/local/Cellar/tdengine/2.4.0.0 && make -j && make install
-```
-> `--with-tdengine-dir=` 后跟上 TDengine 目录。
-> 适用于默认找不到的情况，或者 macOS 系统用户。
-**Swoole 环境：**
-```shell
-phpize && ./configure --enable-swoole && make -j && make install
-```
-**启用扩展：**
-方法一：在 `php.ini` 中加入 `extension=tdengine`
-方法二：运行带参数 `php -d extension=tdengine test.php`
-</TabItem>
-</Tabs>
-## 建立连接
-在执行这一步之前，请确保有一个正在运行的，且可以访问到的 TDengine，而且服务端的 FQDN 配置正确。以下示例代码，都假设 TDengine 安装在本机，且 FQDN（默认 localhost） 和 serverPort（默认 6030） 都使用默认配置。
-<Tabs groupId="lang" defaultValue="java">
-  <TabItem label="Java" value="java">
-    <ConnJava />
-  </TabItem>
-  <TabItem label="Python" value="python">
-    <ConnPythonNative />
-  </TabItem>
-  <TabItem label="Go" value="go">
-      <ConnGo />
-  </TabItem>
-  <TabItem label="Rust" value="rust">
-    <ConnRust />
-  </TabItem>
-  <TabItem label="Node.js" value="node">
-    <ConnNode />
-  </TabItem>
-  <TabItem label="C#" value="csharp">
-    <ConnCSNative />
-  </TabItem>
-  <TabItem label="R" value="r">
-    <ConnR/>
-  </TabItem>
-  <TabItem label="C" value="c">
-    <ConnC />
-  </TabItem>
-  <TabItem label="PHP" value="php">
-    <ConnPHP />
-  </TabItem>
-</Tabs>
-:::tip
-如果建立连接失败，大部分情况下是 FQDN 或防火墙的配置不正确，详细的排查方法请看[《常见问题及反馈》](https://docs.taosdata.com/train-faq/faq)中的“遇到错误 Unable to establish connection, 我怎么办？”
-:::
--- a/docs-cn/07-develop/03-insert-data/_c_line.mdx
+++ b/docs-cn/07-develop/03-insert-data/_c_line.mdx
-```c
-{{#include docs-examples/c/line_example.c:main}}
-```
\ No newline at end of file
--- a/docs-cn/07-develop/03-insert-data/_c_opts_json.mdx
+++ b/docs-cn/07-develop/03-insert-data/_c_opts_json.mdx
-```c
-{{#include docs-examples/c/json_protocol_example.c:main}}
-```
\ No newline at end of file
--- a/docs-cn/07-develop/03-insert-data/_c_opts_telnet.mdx
+++ b/docs-cn/07-develop/03-insert-data/_c_opts_telnet.mdx
-```c
-{{#include docs-examples/c/telnet_line_example.c:main}}
-```
\ No newline at end of file
--- a/docs-cn/07-develop/03-insert-data/_c_sql.mdx
+++ b/docs-cn/07-develop/03-insert-data/_c_sql.mdx
-```c
-{{#include docs-examples/c/insert_example.c}}
-```
\ No newline at end of file
--- a/docs-cn/07-develop/03-insert-data/_c_stmt.mdx
+++ b/docs-cn/07-develop/03-insert-data/_c_stmt.mdx
-```c title=一次绑定一行
-{{#include docs-examples/c/stmt_example.c}}
-```
-```c title=一次绑定多行 72:117
-{{#include docs-examples/c/multi_bind_example.c}}
-```
\ No newline at end of file
--- a/docs-cn/07-develop/03-insert-data/_cs_line.mdx
+++ b/docs-cn/07-develop/03-insert-data/_cs_line.mdx
-```csharp
-{{#include docs-examples/csharp/InfluxDBLineExample.cs}}
-```
--- a/docs-cn/07-develop/03-insert-data/_cs_opts_json.mdx
+++ b/docs-cn/07-develop/03-insert-data/_cs_opts_json.mdx
-```csharp
-{{#include docs-examples/csharp/OptsJsonExample.cs}}
-```
--- a/docs-cn/07-develop/03-insert-data/_cs_opts_telnet.mdx
+++ b/docs-cn/07-develop/03-insert-data/_cs_opts_telnet.mdx
-```csharp
-{{#include docs-examples/csharp/OptsTelnetExample.cs}}
-```
--- a/docs-cn/07-develop/03-insert-data/_cs_sql.mdx
+++ b/docs-cn/07-develop/03-insert-data/_cs_sql.mdx
-```csharp
-{{#include docs-examples/csharp/SQLInsertExample.cs}}
-```
--- a/docs-cn/07-develop/03-insert-data/_cs_stmt.mdx
+++ b/docs-cn/07-develop/03-insert-data/_cs_stmt.mdx
-```csharp
-{{#include docs-examples/csharp/StmtInsertExample.cs}}
-```
--- a/docs-cn/07-develop/03-insert-data/_go_line.mdx
+++ b/docs-cn/07-develop/03-insert-data/_go_line.mdx
-```go
-{{#include docs-examples/go/insert/line/main.go}}
-```
--- a/docs-cn/07-develop/03-insert-data/_go_opts_json.mdx
+++ b/docs-cn/07-develop/03-insert-data/_go_opts_json.mdx
-```go
-{{#include docs-examples/go/insert/json/main.go}}
-```
--- a/docs-cn/07-develop/03-insert-data/_go_opts_telnet.mdx
+++ b/docs-cn/07-develop/03-insert-data/_go_opts_telnet.mdx
-```go
-{{#include docs-examples/go/insert/telnet/main.go}}
-```
--- a/docs-cn/07-develop/03-insert-data/_go_sql.mdx
+++ b/docs-cn/07-develop/03-insert-data/_go_sql.mdx
-```go
-{{#include docs-examples/go/insert/sql/main.go}}
-```
--- a/docs-cn/07-develop/03-insert-data/_go_stmt.mdx
+++ b/docs-cn/07-develop/03-insert-data/_go_stmt.mdx
-```go
-{{#include docs-examples/go/insert/stmt/main.go}}
-```
-:::tip
-driver-go 的模块 `github.com/taosdata/driver-go/v2/wrapper` 是 C 接口的底层封装。使用这个模块也可以实现参数绑定写入。
-:::
--- a/docs-cn/07-develop/03-insert-data/_java_line.mdx
+++ b/docs-cn/07-develop/03-insert-data/_java_line.mdx
-```java
-{{#include docs-examples/java/src/main/java/com/taos/example/LineProtocolExample.java}}
-```
--- a/docs-cn/07-develop/03-insert-data/_java_opts_json.mdx
+++ b/docs-cn/07-develop/03-insert-data/_java_opts_json.mdx
-```java
-{{#include docs-examples/java/src/main/java/com/taos/example/JSONProtocolExample.java}}
-```
--- a/docs-cn/07-develop/03-insert-data/_java_opts_telnet.mdx
+++ b/docs-cn/07-develop/03-insert-data/_java_opts_telnet.mdx
-```java
-{{#include docs-examples/java/src/main/java/com/taos/example/TelnetLineProtocolExample.java}}
-```
--- a/docs-cn/07-develop/03-insert-data/_java_sql.mdx
+++ b/docs-cn/07-develop/03-insert-data/_java_sql.mdx
-```java
-{{#include docs-examples/java/src/main/java/com/taos/example/RestInsertExample.java:insert}}
-```
\ No newline at end of file
--- a/docs-cn/07-develop/03-insert-data/_java_stmt.mdx
+++ b/docs-cn/07-develop/03-insert-data/_java_stmt.mdx
-```java
-{{#include docs-examples/java/src/main/java/com/taos/example/StmtInsertExample.java}}
-```
--- a/docs-cn/07-develop/03-insert-data/_js_line.mdx
+++ b/docs-cn/07-develop/03-insert-data/_js_line.mdx
-```js
-{{#include docs-examples/node/nativeexample/influxdb_line_example.js}}
-```
--- a/docs-cn/07-develop/03-insert-data/_js_opts_json.mdx
+++ b/docs-cn/07-develop/03-insert-data/_js_opts_json.mdx
-```js
-{{#include docs-examples/node/nativeexample/opentsdb_json_example.js}}
-```
--- a/docs-cn/07-develop/03-insert-data/_js_opts_telnet.mdx
+++ b/docs-cn/07-develop/03-insert-data/_js_opts_telnet.mdx
-```js
-{{#include docs-examples/node/nativeexample/opentsdb_telnet_example.js}}
-```
--- a/docs-cn/07-develop/03-insert-data/_js_sql.mdx
+++ b/docs-cn/07-develop/03-insert-data/_js_sql.mdx
-```js
-{{#include docs-examples/node/nativeexample/insert_example.js}}
-```
--- a/docs-cn/07-develop/03-insert-data/_js_stmt.mdx
+++ b/docs-cn/07-develop/03-insert-data/_js_stmt.mdx
-```js title=一次绑定一行
-{{#include docs-examples/node/nativeexample/param_bind_example.js}}
-```
-```js title=一次绑定多行
-{{#include docs-examples/node/nativeexample/multi_bind_example.js:insertData}}
-```
-:::info
-一次绑定一行效率不如一次绑定多行，但支持非 INSERT 语句。一次绑定多行效率更高，但仅支持 INSERT 语句。
-:::
--- a/docs-cn/07-develop/03-insert-data/_php_sql.mdx
+++ b/docs-cn/07-develop/03-insert-data/_php_sql.mdx
-```php
-{{#include docs-examples/php/insert.php}}
-```
--- a/docs-cn/07-develop/03-insert-data/_php_stmt.mdx
+++ b/docs-cn/07-develop/03-insert-data/_php_stmt.mdx
-```php
-{{#include docs-examples/php/insert_stmt.php}}
-```
--- a/docs-cn/07-develop/03-insert-data/_py_line.mdx
+++ b/docs-cn/07-develop/03-insert-data/_py_line.mdx
-```py
-{{#include docs-examples/python/line_protocol_example.py}}
-```
--- a/docs-cn/07-develop/03-insert-data/_py_opts_json.mdx
+++ b/docs-cn/07-develop/03-insert-data/_py_opts_json.mdx
-```py
-{{#include docs-examples/python/json_protocol_example.py}}
-```
--- a/docs-cn/07-develop/03-insert-data/_py_opts_telnet.mdx
+++ b/docs-cn/07-develop/03-insert-data/_py_opts_telnet.mdx
-```py
-{{#include docs-examples/python/telnet_line_protocol_example.py}}
-```
--- a/docs-cn/07-develop/03-insert-data/_py_sql.mdx
+++ b/docs-cn/07-develop/03-insert-data/_py_sql.mdx
-```py
-{{#include docs-examples/python/native_insert_example.py}}
-```
--- a/docs-cn/07-develop/03-insert-data/_py_stmt.mdx
+++ b/docs-cn/07-develop/03-insert-data/_py_stmt.mdx
-```py title=一次绑定一行
-{{#include docs-examples/python/bind_param_example.py}}
-```
-```py title=一次绑定多行
-{{#include docs-examples/python/multi_bind_example.py:bind_batch}}
-```
-:::info
-一次绑定一行效率不如一次绑定多行，但支持非 INSERT 语句。一次绑定多行效率更高，但仅支持 INSERT 语句。
-:::
\ No newline at end of file
--- a/docs-cn/07-develop/03-insert-data/_rust_line.mdx
+++ b/docs-cn/07-develop/03-insert-data/_rust_line.mdx
-```rust
-{{#include docs-examples/rust/schemalessexample/examples/influxdb_line_example.rs}}
-```
--- a/docs-cn/07-develop/03-insert-data/_rust_opts_json.mdx
+++ b/docs-cn/07-develop/03-insert-data/_rust_opts_json.mdx
-```rust
-{{#include docs-examples/rust/schemalessexample/examples/opentsdb_json_example.rs}}
-```
--- a/docs-cn/07-develop/03-insert-data/_rust_opts_telnet.mdx
+++ b/docs-cn/07-develop/03-insert-data/_rust_opts_telnet.mdx
-```rust
-{{#include docs-examples/rust/schemalessexample/examples/opentsdb_telnet_example.rs}}
-```
--- a/docs-cn/07-develop/03-insert-data/_rust_sql.mdx
+++ b/docs-cn/07-develop/03-insert-data/_rust_sql.mdx
-```rust
-{{#include docs-examples/rust/restexample/examples/insert_example.rs}}
-```
--- a/docs-cn/07-develop/03-insert-data/_rust_stmt.mdx
+++ b/docs-cn/07-develop/03-insert-data/_rust_stmt.mdx
-```rust
-{{#include docs-examples/rust/nativeexample/examples/stmt_example.rs}}
-```
--- a/docs-cn/07-develop/04-query-data/_c.mdx
+++ b/docs-cn/07-develop/04-query-data/_c.mdx
-```c
-{{#include docs-examples/c/query_example.c}}
-```
\ No newline at end of file
--- a/docs-cn/07-develop/04-query-data/_c_async.mdx
+++ b/docs-cn/07-develop/04-query-data/_c_async.mdx
-```c
-{{#include docs-examples/c/async_query_example.c:demo}}
-```
\ No newline at end of file
--- a/docs-cn/07-develop/04-query-data/_cs.mdx
+++ b/docs-cn/07-develop/04-query-data/_cs.mdx
-```csharp
-{{#include docs-examples/csharp/QueryExample.cs}}
-```
--- a/docs-cn/07-develop/04-query-data/_cs_async.mdx
+++ b/docs-cn/07-develop/04-query-data/_cs_async.mdx
-```csharp
-{{#include docs-examples/csharp/AsyncQueryExample.cs}}
-```
--- a/docs-cn/07-develop/04-query-data/_go.mdx
+++ b/docs-cn/07-develop/04-query-data/_go.mdx
-```go
-{{#include docs-examples/go/query/sync/main.go}}
-```
--- a/docs-cn/07-develop/04-query-data/_go_async.mdx
+++ b/docs-cn/07-develop/04-query-data/_go_async.mdx
-```go
-{{#include docs-examples/go/query/async/main.go}}
-```
--- a/docs-cn/07-develop/04-query-data/_java.mdx
+++ b/docs-cn/07-develop/04-query-data/_java.mdx
-```java
-{{#include docs-examples/java/src/main/java/com/taos/example/RestQueryExample.java}}
-```
--- a/docs-cn/07-develop/04-query-data/_js.mdx
+++ b/docs-cn/07-develop/04-query-data/_js.mdx
-```js
-{{#include docs-examples/node/nativeexample/query_example.js}}
-```
--- a/docs-cn/07-develop/04-query-data/_js_async.mdx
+++ b/docs-cn/07-develop/04-query-data/_js_async.mdx
-```js
-{{#include docs-examples/node/nativeexample/async_query_example.js}}
-```
--- a/docs-cn/07-develop/04-query-data/_php.mdx
+++ b/docs-cn/07-develop/04-query-data/_php.mdx
-```go
-{{#include docs-examples/php/query.php}}
-```
--- a/docs-cn/07-develop/04-query-data/_py.mdx
+++ b/docs-cn/07-develop/04-query-data/_py.mdx
-通过迭代逐行获取查询结果。
-```py
-{{#include docs-examples/python/query_example.py:iter}}
-```
-一次获取所有查询结果，并把每一行转化为一个字典返回。
-```py
-{{#include docs-examples/python/query_example.py:fetch_all}}
-```
--- a/docs-cn/07-develop/04-query-data/_py_async.mdx
+++ b/docs-cn/07-develop/04-query-data/_py_async.mdx
-```py
-{{#include docs-examples/python/async_query_example.py}}
-```
-:::note
-这个示例程序，目前在 Windows 系统上还无法运行
-:::
--- a/docs-cn/07-develop/04-query-data/_rust.mdx
+++ b/docs-cn/07-develop/04-query-data/_rust.mdx
-```rust
-{{#include docs-examples/rust/restexample/examples/query_example.rs}}
-```
--- a/docs-cn/07-develop/_sub_c.mdx
+++ b/docs-cn/07-develop/_sub_c.mdx
-```c
-{{#include docs-examples/c/subscribe_demo.c}}
-```
\ No newline at end of file
--- a/docs-cn/07-develop/_sub_cs.mdx
+++ b/docs-cn/07-develop/_sub_cs.mdx
-```csharp
-{{#include docs-examples/csharp/SubscribeDemo.cs}}
-```
\ No newline at end of file
--- a/docs-cn/07-develop/_sub_go.mdx
+++ b/docs-cn/07-develop/_sub_go.mdx
-```go
-{{#include docs-examples/go/sub/main.go}}
-```
\ No newline at end of file
--- a/docs-cn/07-develop/_sub_java.mdx
+++ b/docs-cn/07-develop/_sub_java.mdx
-```java
-{{#include docs-examples/java/src/main/java/com/taos/example/SubscribeDemo.java}}
-```
-:::note
-目前 Java 接口没有提供异步订阅模式，但用户程序可以通过创建 `TimerTask` 等方式达到同样的效果。
-:::
\ No newline at end of file
--- a/docs-cn/07-develop/_sub_node.mdx
+++ b/docs-cn/07-develop/_sub_node.mdx
-```js
-{{#include docs-examples/node/nativeexample/subscribe_demo.js}}
-```
\ No newline at end of file
--- a/docs-cn/07-develop/_sub_python.mdx
+++ b/docs-cn/07-develop/_sub_python.mdx
-```py
-{{#include docs-examples/python/subscribe_demo.py}}
-```
\ No newline at end of file
--- a/docs-cn/07-develop/_sub_rust.mdx
+++ b/docs-cn/07-develop/_sub_rust.mdx
-```rs
-{{#include docs-examples/rust/nativeexample/examples/subscribe_demo.rs}}
-```
\ No newline at end of file
--- a/docs-cn/12-taos-sql/02-database.md
+++ b/docs-cn/12-taos-sql/02-database.md
---
-sidebar_label: 数据库管理
-title: 数据库管理
-description: "创建、删除数据库，查看、修改数据库参数"
---
-## 创建数据库
-```
-CREATE DATABASE [IF NOT EXISTS] db_name [KEEP keep] [DAYS days] [UPDATE 1];
-```
-:::info
-1. KEEP 是该数据库的数据保留多长天数，缺省是 3650 天(10 年)，数据库会自动删除超过时限的数据；<!-- REPLACE_OPEN_TO_ENTERPRISE__KEEP_PARAM_DESCRIPTION -->
-2. UPDATE 标志数据库支持更新相同时间戳数据；（从 2.1.7.0 版本开始此参数支持设为 2，表示允许部分列更新，也即更新数据行时未被设置的列会保留原值。）（从 2.0.8.0 版本开始支持此参数。注意此参数不能通过 `ALTER DATABASE` 指令进行修改。）
-   1. UPDATE 设为 0 时，表示不允许更新数据，后发送的相同时间戳的数据会被直接丢弃；
-   2. UPDATE 设为 1 时，表示更新全部列数据，即如果更新一个数据行，其中某些列没有提供取值，那么这些列会被设为 NULL；
-   3. UPDATE 设为 2 时，表示支持更新部分列数据，即如果更新一个数据行，其中某些列没有提供取值，那么这些列会保持原有数据行中的对应值；
-   4. 更多关于 UPDATE 参数的用法，请参考[FAQ](/train-faq/faq)。
-3. 数据库名最大长度为 33；
-4. 一条 SQL 语句的最大长度为 65480 个字符；
-5. 创建数据库时可用的参数有：
-   - cache: [详细说明](/reference/config/#cache)
-   - blocks: [详细说明](/reference/config/#blocks)
-   - days: [详细说明](/reference/config/#days)
-   - keep: [详细说明](/reference/config/#keep)
-   - minRows: [详细说明](/reference/config/#minrows)
-   - maxRows: [详细说明](/reference/config/#maxrows)
-   - wal: [详细说明](/reference/config/#wallevel)
-   - fsync: [详细说明](/reference/config/#fsync)
-   - update: [详细说明](/reference/config/#update)
-   - cacheLast: [详细说明](/reference/config/#cachelast)
-   - replica: [详细说明](/reference/config/#replica)
-   - quorum: [详细说明](/reference/config/#quorum)
-   - maxVgroupsPerDb: [详细说明](/reference/config/#maxvgroupsperdb)
-   - comp: [详细说明](/reference/config/#comp)
-   - precision: [详细说明](/reference/config/#precision)
-6. 请注意上面列出的所有参数都可以配置在配置文件 `taosd.cfg` 中作为创建数据库时使用的默认配置， `create database` 的参数中明确指定的会覆盖配置文件中的设置。
-:::
-### 创建数据库示例
-创建时间精度为纳秒的数据库, 保留 1 年数据：
-```sql
-CREATE DATABASE test PRECISION 'ns' KEEP 365;
-```
-## 显示系统当前参数
-```
-SHOW VARIABLES;
-```
-## 使用数据库
-```
-USE db_name;
-```
-使用/切换数据库（在 REST 连接方式下无效）。
-## 删除数据库
-```
-DROP DATABASE [IF EXISTS] db_name;
-```
-删除数据库。指定 Database 所包含的全部数据表将被删除，谨慎使用！
-## 修改数据库参数
-```
-ALTER DATABASE db_name COMP 2;
-```
-COMP 参数是指修改数据库文件压缩标志位，缺省值为 2，取值范围为 [0, 2]。0 表示不压缩，1 表示一阶段压缩，2 表示两阶段压缩。
-```
-ALTER DATABASE db_name REPLICA 2;
-```
-REPLICA 参数是指修改数据库副本数，取值范围 [1, 3]。在集群中使用，副本数必须小于或等于 DNODE 的数目。
-```
-ALTER DATABASE db_name KEEP 365;
-```
-KEEP 参数是指修改数据文件保存的天数，缺省值为 3650，取值范围 [days, 365000]，必须大于或等于 days 参数值。
-```
-ALTER DATABASE db_name QUORUM 2;
-```
-QUORUM 参数是指数据写入成功所需要的确认数，取值范围 [1, 2]。对于异步复制，quorum 设为 1，具有 master 角色的虚拟节点自己确认即可。对于同步复制，quorum 设为 2。原则上，Quorum >= 1 并且 Quorum <= replica(副本数)，这个参数在启动一个同步模块实例时需要提供。
-```
-ALTER DATABASE db_name BLOCKS 100;
-```
-BLOCKS 参数是每个 VNODE (TSDB) 中有多少 cache 大小的内存块，因此一个 VNODE 的用的内存大小粗略为（cache \* blocks）。取值范围 [3, 1000]。
-```
-ALTER DATABASE db_name CACHELAST 0;
-```
-CACHELAST 参数控制是否在内存中缓存子表的最近数据。缺省值为 0，取值范围 [0, 1, 2, 3]。其中 0 表示不缓存，1 表示缓存子表最近一行数据，2 表示缓存子表每一列的最近的非 NULL 值，3 表示同时打开缓存最近行和列功能。（从 2.0.11.0 版本开始支持参数值 [0, 1]，从 2.1.2.0 版本开始支持参数值 [0, 1, 2, 3]。）  
-说明：缓存最近行，将显著改善 LAST_ROW 函数的性能表现；缓存每列的最近非 NULL 值，将显著改善无特殊影响（WHERE、ORDER BY、GROUP BY、INTERVAL）下的 LAST 函数的性能表现。
-:::tip
-以上所有参数修改后都可以用 show databases 来确认是否修改成功。另外，从 2.1.3.0 版本开始，修改这些参数后无需重启服务器即可生效。
-:::
-## 显示系统所有数据库
-```
-SHOW DATABASES;
-```
-## 显示一个数据库的创建语句
-```
-SHOW CREATE DATABASE db_name;
-```
-常用于数据库迁移。对一个已经存在的数据库，返回其创建语句；在另一个集群中执行该语句，就能得到一个设置完全相同的 Database。
--- a/docs-cn/12-taos-sql/05-insert.md
+++ b/docs-cn/12-taos-sql/05-insert.md
---
-sidebar_label: 数据写入
-title: 数据写入
---
-## 写入语法
-```
-INSERT INTO
-    tb_name
-        [USING stb_name [(tag1_name, ...)] TAGS (tag1_value, ...)]
-        [(field1_name, ...)]
-        VALUES (field1_value, ...) [(field1_value2, ...) ...] | FILE csv_file_path
-    [tb2_name
-        [USING stb_name [(tag1_name, ...)] TAGS (tag1_value, ...)]
-        [(field1_name, ...)]
-        VALUES (field1_value, ...) [(field1_value2, ...) ...] | FILE csv_file_path
-    ...];
-```
-## 插入一条或多条记录
-指定已经创建好的数据子表的表名，并通过 VALUES 关键字提供一行或多行数据，即可向数据库写入这些数据。例如，执行如下语句可以写入一行记录：
-```
-INSERT INTO d1001 VALUES (NOW, 10.2, 219, 0.32);
-```
-或者，可以通过如下语句写入两行记录：
-```
-INSERT INTO d1001 VALUES ('2021-07-13 14:06:32.272', 10.2, 219, 0.32) (1626164208000, 10.15, 217, 0.33);
-```
-:::note
-1. 在第二个例子中，两行记录的首列时间戳使用了不同格式的写法。其中字符串格式的时间戳写法不受所在 DATABASE 的时间精度设置影响；而长整形格式的时间戳写法会受到所在 DATABASE 的时间精度设置影响——例子中的时间戳在毫秒精度下可以写作 1626164208000，而如果是在微秒精度设置下就需要写为 1626164208000000，纳秒精度设置下需要写为 1626164208000000000。
-2. 在使用“插入多条记录”方式写入数据时，不能把第一列的时间戳取值都设为 NOW，否则会导致语句中的多条记录使用相同的时间戳，于是就可能出现相互覆盖以致这些数据行无法全部被正确保存。其原因在于，NOW 函数在执行中会被解析为所在 SQL 语句的实际执行时间，出现在同一语句中的多个 NOW 标记也就会被替换为完全相同的时间戳取值。
-3. 允许插入的最老记录的时间戳，是相对于当前服务器时间，减去配置的 keep 值（数据保留的天数）；允许插入的最新记录的时间戳，是相对于当前服务器时间，加上配置的 days 值（数据文件存储数据的时间跨度，单位为天）。keep 和 days 都是可以在创建数据库时指定的，缺省值分别是 3650 天和 10 天。
-:::
-## 插入记录，数据对应到指定的列
-向数据子表中插入记录时，无论插入一行还是多行，都可以让数据对应到指定的列。对于 SQL 语句中没有出现的列，数据库将自动填充为 NULL。主键（时间戳）不能为 NULL。例如：
-```
-INSERT INTO d1001 (ts, current, phase) VALUES ('2021-07-13 14:06:33.196', 10.27, 0.31);
-```
-:::info
-如果不指定列，也即使用全列模式——那么在 VALUES 部分提供的数据，必须为数据表的每个列都显式地提供数据。全列模式写入速度会远快于指定列，因此建议尽可能采用全列写入方式，此时空列可以填入 NULL。
-:::
-## 向多个表插入记录
-可以在一条语句中，分别向多个表插入一条或多条记录，并且也可以在插入过程中指定列。例如：
-```
-INSERT INTO d1001 VALUES ('2021-07-13 14:06:34.630', 10.2, 219, 0.32) ('2021-07-13 14:06:35.779', 10.15, 217, 0.33)
-            d1002 (ts, current, phase) VALUES ('2021-07-13 14:06:34.255', 10.27, 0.31）;
-```
-## 插入记录时自动建表
-如果用户在写数据时并不确定某个表是否存在，此时可以在写入数据时使用自动建表语法来创建不存在的表，若该表已存在则不会建立新表。自动建表时，要求必须以超级表为模板，并写明数据表的 TAGS 取值。例如：
-```
-INSERT INTO d21001 USING meters TAGS ('California.SanFrancisco', 2) VALUES ('2021-07-13 14:06:32.272', 10.2, 219, 0.32);
-```
-也可以在自动建表时，只是指定部分 TAGS 列的取值，未被指定的 TAGS 列将置为 NULL。例如：
-```
-INSERT INTO d21001 USING meters (groupId) TAGS (2) VALUES ('2021-07-13 14:06:33.196', 10.15, 217, 0.33);
-```
-自动建表语法也支持在一条语句中向多个表插入记录。例如：
-```
-INSERT INTO d21001 USING meters TAGS ('California.SanFrancisco', 2) VALUES ('2021-07-13 14:06:34.630', 10.2, 219, 0.32) ('2021-07-13 14:06:35.779', 10.15, 217, 0.33)
-            d21002 USING meters (groupId) TAGS (2) VALUES ('2021-07-13 14:06:34.255', 10.15, 217, 0.33)
-            d21003 USING meters (groupId) TAGS (2) (ts, current, phase) VALUES ('2021-07-13 14:06:34.255', 10.27, 0.31);
-```
-:::info
-在 2.0.20.5 版本之前，在使用自动建表语法并指定列时，子表的列名必须紧跟在子表名称后面，而不能如例子里那样放在 TAGS 和 VALUES 之间。从 2.0.20.5 版本开始，两种写法都可以，但不能在一条 SQL 语句中混用，否则会报语法错误。
-:::
-## 插入来自文件的数据记录
-除了使用 VALUES 关键字插入一行或多行数据外，也可以把要写入的数据放在 CSV 文件中（英文逗号分隔、英文单引号括住每个值）供 SQL 指令读取。其中 CSV 文件无需表头。例如，如果 /tmp/csvfile.csv 文件的内容为：
-```
-'2021-07-13 14:07:34.630', '10.2', '219', '0.32'
-'2021-07-13 14:07:35.779', '10.15', '217', '0.33'
-```
-那么通过如下指令可以把这个文件中的数据写入子表中：
-```
-INSERT INTO d1001 FILE '/tmp/csvfile.csv';
-```
-## 插入来自文件的数据记录，并自动建表
-从 2.1.5.0 版本开始，支持在插入来自 CSV 文件的数据时，以超级表为模板来自动创建不存在的数据表。例如：
-```
-INSERT INTO d21001 USING meters TAGS ('California.SanFrancisco', 2) FILE '/tmp/csvfile.csv';
-```
-也可以在一条语句中向多个表以自动建表的方式插入记录。例如：
-```
-INSERT INTO d21001 USING meters TAGS ('California.SanFrancisco', 2) FILE '/tmp/csvfile_21001.csv'
-            d21002 USING meters (groupId) TAGS (2) FILE '/tmp/csvfile_21002.csv';
-```
-## 历史记录写入
-可使用 IMPORT 或者 INSERT 命令，IMPORT 的语法，功能与 INSERT 完全一样。
-针对 insert 类型的 SQL 语句，我们采用的流式解析策略，在发现后面的错误之前，前面正确的部分 SQL 仍会执行。下面的 SQL 中，INSERT 语句是无效的，但是 d1001 仍会被创建。
-```
-taos> CREATE TABLE meters(ts TIMESTAMP, current FLOAT, voltage INT, phase FLOAT) TAGS(location BINARY(30), groupId INT);
-Query OK, 0 row(s) affected (0.008245s)
-taos> SHOW STABLES;
-              name              |      created_time       | columns |  tags  |   tables    |
-============================================================================================
- meters                         | 2020-08-06 17:50:27.831 |       4 |      2 |           0 |
-Query OK, 1 row(s) in set (0.001029s)
-taos> SHOW TABLES;
-Query OK, 0 row(s) in set (0.000946s)
-taos> INSERT INTO d1001 USING meters TAGS('California.SanFrancisco', 2) VALUES('a');
-DB error: invalid SQL: 'a' (invalid timestamp) (0.039494s)
-taos> SHOW TABLES;
-           table_name           |      created_time       | columns |          stable_name           |
-======================================================================================================
- d1001                          | 2020-08-06 17:52:02.097 |       4 | meters                         |
-Query OK, 1 row(s) in set (0.001091s)
-```
--- a/docs-cn/12-taos-sql/12-keywords/_category_.yml
+++ b/docs-cn/12-taos-sql/12-keywords/_category_.yml
-label: 参数限制与保留关键字
\ No newline at end of file
--- a/docs-cn/12-taos-sql/12-keywords/index.md
+++ b/docs-cn/12-taos-sql/12-keywords/index.md
---
-sidebar_label: 参数限制与保留关键字 
-title: TDengine 参数限制与保留关键字
---
-## 名称命名规则
-1. 合法字符：英文字符、数字和下划线
-2. 允许英文字符或下划线开头，不允许以数字开头
-3. 不区分大小写
-4. 转义后表（列）名规则：
-   为了兼容支持更多形式的表（列）名，TDengine 引入新的转义符 "`"。可用让表名与关键词不冲突，同时不受限于上述表名称合法性约束检查。
-   转义后的表（列）名同样受到长度限制要求，且长度计算的时候不计算转义符。使用转义字符以后，不再对转义字符中的内容进行大小写统一。
-   例如：\`aBc\` 和 \`abc\` 是不同的表（列）名，但是 abc 和 aBc 是相同的表（列）名。
-   需要注意的是转义字符中的内容必须是可打印字符。
-   支持转义符的功能从 2.3.0.1 版本开始。
-## 密码合法字符集
-`[a-zA-Z0-9!?$%^&*()_–+={[}]:;@~#|<,>.?/]`
-去掉了 `` ‘“`\ `` (单双引号、撇号、反斜杠、空格)
- 数据库名：不能包含“.”以及特殊字符，不能超过 32 个字符
- 表名：不能包含“.”以及特殊字符，与所属数据库名一起，不能超过 192 个字节 ，每行数据最大长度 48KB
- 表的列名：不能包含特殊字符，不能超过 64 个字节
- 数据库名、表名、列名，都不能以数字开头，合法的可用字符集是“英文字符、数字和下划线”
- 表的列数：不能超过 1024 列，最少需要 2 列，第一列必须是时间戳（从 2.1.7.0 版本开始，改为最多支持 4096 列）
- 记录的最大长度：包括时间戳 8 字节，不能超过 48KB（每个 BINARY/NCHAR 类型的列还会额外占用 2 个 字节 的存储位置）
- 单条 SQL 语句默认最大字符串长度：1048576 字节，但可通过系统配置参数 maxSQLLength 修改，取值范围 65480 ~ 1048576 字节
- 数据库副本数：不能超过 3
- 用户名：不能超过 23 个 字节
- 用户密码：不能超过 15 个 字节
- 标签(Tags)数量：不能超过 128 个，可以 0 个
- 标签的总长度：不能超过 16KB
- 记录条数：仅受存储空间限制
- 表的个数：仅受节点个数限制
- 库的个数：仅受节点个数限制
- 单个库上虚拟节点个数：不能超过 64 个
- 库的数目，超级表的数目、表的数目，系统不做限制，仅受系统资源限制
- SELECT 语句的查询结果，最多允许返回 1024 列（语句中的函数调用可能也会占用一些列空间），超限时需要显式指定较少的返回数据列，以避免语句执行报错。（从 2.1.7.0 版本开始，改为最多允许 4096 列）
-## 保留关键字
-目前 TDengine 有将近 200 个内部保留关键字，这些关键字无论大小写均不可以用作库名、表名、STable 名、数据列名及标签列名等。这些关键字列表如下：
-| 关键字列表  |            |           |            |              |
-| ----------- | ---------- | --------- | ---------- | ------------ |
-| ABORT       | CREATE     | IGNORE    | NULL       | STAR         |
-| ACCOUNT     | CTIME      | IMMEDIATE | OF         | STATE        |
-| ACCOUNTS    | DATABASE   | IMPORT    | OFFSET     | STATEMENT    |
-| ADD         | DATABASES  | IN        | OR         | STATE_WINDOW |
-| AFTER       | DAYS       | INITIALLY | ORDER      | STORAGE      |
-| ALL         | DBS        | INSERT    | PARTITIONS | STREAM       |
-| ALTER       | DEFERRED   | INSTEAD   | PASS       | STREAMS      |
-| AND         | DELIMITERS | INT       | PLUS       | STRING       |
-| AS          | DESC       | INTEGER   | PPS        | SYNCDB       |
-| ASC         | DESCRIBE   | INTERVAL  | PRECISION  | TABLE        |
-| ATTACH      | DETACH     | INTO      | PREV       | TABLES       |
-| BEFORE      | DISTINCT   | IS        | PRIVILEGE  | TAG          |
-| BEGIN       | DIVIDE     | ISNULL    | QTIME      | TAGS         |
-| BETWEEN     | DNODE      | JOIN      | QUERIES    | TBNAME       |
-| BIGINT      | DNODES     | KEEP      | QUERY      | TIMES        |
-| BINARY      | DOT        | KEY       | QUORUM     | TIMESTAMP    |
-| BITAND      | DOUBLE     | KILL      | RAISE      | TINYINT      |
-| BITNOT      | DROP       | LE        | REM        | TOPIC        |
-| BITOR       | EACH       | LIKE      | REPLACE    | TOPICS       |
-| BLOCKS      | END        | LIMIT     | REPLICA    | TRIGGER      |
-| BOOL        | EQ         | LINEAR    | RESET      | TSERIES      |
-| BY          | EXISTS     | LOCAL     | RESTRICT   | UMINUS       |
-| CACHE       | EXPLAIN    | LP        | ROW        | UNION        |
-| CACHELAST   | FAIL       | LSHIFT    | RP         | UNSIGNED     |
-| CASCADE     | FILE       | LT        | RSHIFT     | UPDATE       |
-| CHANGE      | FILL       | MATCH     | SCORES     | UPLUS        |
-| CLUSTER     | FLOAT      | MAXROWS   | SELECT     | USE          |
-| COLON       | FOR        | MINROWS   | SEMI       | USER         |
-| COLUMN      | FROM       | MINUS     | SESSION    | USERS        |
-| COMMA       | FSYNC      | MNODES    | SET        | USING        |
-| COMP        | GE         | MODIFY    | SHOW       | VALUES       |
-| COMPACT     | GLOB       | MODULES   | SLASH      | VARIABLE     |
-| CONCAT      | GRANTS     | NCHAR     | SLIDING    | VARIABLES    |
-| CONFLICT    | GROUP      | NE        | SLIMIT     | VGROUPS      |
-| CONNECTION  | GT         | NONE      | SMALLINT   | VIEW         |
-| CONNECTIONS | HAVING     | NOT       | SOFFSET    | VNODES       |
-| CONNS       | ID         | NOTNULL   | STABLE     | WAL          |
-| COPY        | IF         | NOW       | STABLES    | WHERE        |
-| _C0         | _QSTART    | _QSTOP    | _QDURATION | _WSTART      |
-| _WSTOP      | _WDURATION |
-## 特殊说明
-### TBNAME
-`TBNAME` 可以视为超级表中一个特殊的标签，代表子表的表名。
-获取一个超级表所有的子表名及相关的标签信息：
-```mysql
-SELECT TBNAME, location FROM meters;
-统计超级表下辖子表数量：
-```mysql
-SELECT COUNT(TBNAME) FROM meters;
-```
-以上两个查询均只支持在WHERE条件子句中添加针对标签（TAGS）的过滤条件。例如：
-```mysql
-taos> SELECT TBNAME, location FROM meters;
-             tbname             |            location            |
-==================================================================
- d1004                          | California.SanFrancisco        |
- d1003                          | California.SanFrancisco        |
- d1002                          | California.LosAngeles          |
- d1001                          | California.LosAngeles          |
-Query OK, 4 row(s) in set (0.000881s)
-taos> SELECT COUNT(tbname) FROM meters WHERE groupId > 2;
-     count(tbname)     |
-========================
-                     2 |
-Query OK, 1 row(s) in set (0.001091s)
-```
-### _QSTART/_QSTOP/_QDURATION
-表示查询过滤窗口的起始，结束以及持续时间 (从2.6.0.0版本开始支持)
-### _WSTART/_WSTOP/_WDURATION
-窗口切分聚合查询（例如 interval/session window/state window）中表示每个切分窗口的起始，结束以及持续时间（从 2.6.0.0 版本开始支持）
-### _c0
-表示表或超级表的第一列
\ No newline at end of file
--- a/docs-cn/14-reference/02-rest-api/02-rest-api.mdx
+++ b/docs-cn/14-reference/02-rest-api/02-rest-api.mdx
---
-title: REST API
---
-为支持各种不同类型平台的开发，TDengine 提供符合 REST 设计标准的 API，即 REST API。为最大程度降低学习成本，不同于其他数据库 REST API 的设计方法，TDengine 直接通过 HTTP POST 请求 BODY 中包含的 SQL 语句来操作数据库，仅需要一个 URL。REST 连接器的使用参见[视频教程](https://www.taosdata.com/blog/2020/11/11/1965.html)。
-:::note
-与原生连接器的一个区别是，RESTful 接口是无状态的，因此 `USE db_name` 指令没有效果，所有对表名、超级表名的引用都需要指定数据库名前缀。从 2.2.0.0 版本开始，支持在 RESTful URL 中指定 db_name，这时如果 SQL 语句中没有指定数据库名前缀的话，会使用 URL 中指定的这个 db_name。从 2.4.0.0 版本开始，RESTful 默认由 taosAdapter 提供，要求必须在 URL 中指定 db_name。
-:::
-## 安装
-RESTful 接口不依赖于任何 TDengine 的库，因此客户端不需要安装任何 TDengine 的库，只要客户端的开发语言支持 HTTP 协议即可。
-## 验证
-在已经安装 TDengine 服务器端的情况下，可以按照如下方式进行验证。
-下面以 Ubuntu 环境中使用 curl 工具（确认已经安装）来验证 RESTful 接口的正常，验证前请确认 taosAdapter 服务已开启，在 Linux 系统上此服务默认由 systemd 管理，使用命令 `systemctl start taosadapter` 启动。
-下面示例是列出所有的数据库，请把 h1.taosdata.com 和 6041（缺省值）替换为实际运行的 TDengine 服务 FQDN 和端口号：
-```html
-curl -H 'Authorization: Basic cm9vdDp0YW9zZGF0YQ==' -d 'show databases;' h1.taosdata.com:6041/rest/sql
-```
-返回值结果如下表示验证通过：
-```json
-{
-  "status": "succ",
-  "head": [
-    "name",
-    "created_time",
-    "ntables",
-    "vgroups",
-    "replica",
-    "quorum",
-    "days",
-    "keep1,keep2,keep(D)",
-    "cache(MB)",
-    "blocks",
-    "minrows",
-    "maxrows",
-    "wallevel",
-    "fsync",
-    "comp",
-    "precision",
-    "status"
-  ],
-  "data": [
-    [
-      "log",
-      "2020-09-02 17:23:00.039",
-      4,
-      1,
-      1,
-      1,
-      10,
-      "30,30,30",
-      1,
-      3,
-      100,
-      4096,
-      1,
-      3000,
-      2,
-      "us",
-      "ready"
-    ]
-  ],
-  "rows": 1
-}
-```
-## HTTP 请求格式
-```
-http://<fqdn>:<port>/rest/sql/[db_name]
-```
-参数说明：
- fqnd: 集群中的任一台主机 FQDN 或 IP 地址
- port: 配置文件中 httpPort 配置项，缺省为 6041
- db_name: 可选参数，指定本次所执行的 SQL 语句的默认数据库库名。（从 2.2.0.0 版本开始支持）
-例如：`http://h1.taos.com:6041/rest/sql/test` 是指向地址为 `h1.taos.com:6041` 的 URL，并将默认使用的数据库库名设置为 `test`。
-HTTP 请求的 Header 里需带有身份认证信息，TDengine 支持 Basic 认证与自定义认证两种机制，后续版本将提供标准安全的数字签名机制来做身份验证。
- 自定义身份认证信息如下所示（token 稍后介绍）
-  ```
-  Authorization: Taosd <TOKEN>
-  ```
- Basic 身份认证信息如下所示
-  ```
-  Authorization: Basic <TOKEN>
-  ```
-HTTP 请求的 BODY 里就是一个完整的 SQL 语句，SQL 语句中的数据表应提供数据库前缀，例如 db_name.tb_name。如果表名不带数据库前缀，又没有在 URL 中指定数据库名的话，系统会返回错误。因为 HTTP 模块只是一个简单的转发，没有当前 DB 的概念。
-使用 `curl` 通过自定义身份认证方式来发起一个 HTTP Request，语法如下：
-```bash
-curl -H 'Authorization: Basic <TOKEN>' -d '<SQL>' <ip>:<PORT>/rest/sql/[db_name]
-```
-或者
-```bash
-curl -u username:password -d '<SQL>' <ip>:<PORT>/rest/sql/[db_name]
-```
-其中，`TOKEN` 为 `{username}:{password}` 经过 Base64 编码之后的字符串，例如 `root:taosdata` 编码后为 `cm9vdDp0YW9zZGF0YQ==`
-## HTTP 返回格式
-返回值为 JSON 格式，如下:
-```json
-{
-    "status": "succ",
-    "head": ["ts","current", …],
-    "column_meta": [["ts",9,8],["current",6,4], …],
-    "data": [
-        ["2018-10-03 14:38:05.000", 10.3, …],
-        ["2018-10-03 14:38:15.000", 12.6, …]
-    ],
-    "rows": 2
-}
-```
-说明：
- status: 告知操作结果是成功还是失败。
- head: 表的定义，如果不返回结果集，则仅有一列 “affected_rows”。（从 2.0.17.0 版本开始，建议不要依赖 head 返回值来判断数据列类型，而推荐使用 column_meta。在后续版本中，有可能会从返回值中去掉 head 这一项。）
- column_meta: 从 2.0.17.0 版本开始，返回值中增加这一项来说明 data 里每一列的数据类型。具体每个列会用三个值来说明，分别为：列名、列类型、类型长度。例如`["current",6,4]`表示列名为“current”；列类型为 6，也即 float 类型；类型长度为 4，也即对应 4 个字节表示的 float。如果列类型为 binary 或 nchar，则类型长度表示该列最多可以保存的内容长度，而不是本次返回值中的具体数据长度。当列类型是 nchar 的时候，其类型长度表示可以保存的 unicode 字符数量，而不是 bytes。
- data: 具体返回的数据，一行一行的呈现，如果不返回结果集，那么就仅有 [[affected_rows]]。data 中每一行的数据列顺序，与 column_meta 中描述数据列的顺序完全一致。
- rows: 表明总共多少行数据。
-column_meta 中的列类型说明：
- 1：BOOL
- 2：TINYINT
- 3：SMALLINT
- 4：INT
- 5：BIGINT
- 6：FLOAT
- 7：DOUBLE
- 8：BINARY
- 9：TIMESTAMP
- 10：NCHAR
-## 自定义授权码
-HTTP 请求中需要带有授权码 `<TOKEN>`，用于身份识别。授权码通常由管理员提供，可简单的通过发送 `HTTP GET` 请求来获取授权码，操作如下：
-```bash
-curl http://<fqnd>:<port>/rest/login/<username>/<password>
-```
-其中，`fqdn` 是 TDengine 数据库的 FQDN 或 IP 地址，`port` 是 TDengine 服务的端口号，`username` 为数据库用户名，`password` 为数据库密码，返回值为 JSON 格式，各字段含义如下：
- status：请求结果的标志位
- code：返回值代码
- desc：授权码
-获取授权码示例：
-```bash
-curl http://192.168.0.1:6041/rest/login/root/taosdata
-```
-返回值：
-```json
-{
-  "status": "succ",
-  "code": 0,
-  "desc": "/KfeAzX/f9na8qdtNZmtONryp201ma04bEl8LcvLUd7a8qdtNZmtONryp201ma04"
-}
-```
-## 使用示例
- 在 demo 库里查询表 d1001 的所有记录：
-  ```bash
-  curl -H 'Authorization: Basic cm9vdDp0YW9zZGF0YQ==' -d 'select * from demo.d1001' 192.168.0.1:6041/rest/sql
-  ```
-  返回值：
-  ```json
-  {
-    "status": "succ",
-    "head": ["ts", "current", "voltage", "phase"],
-    "column_meta": [
-      ["ts", 9, 8],
-      ["current", 6, 4],
-      ["voltage", 4, 4],
-      ["phase", 6, 4]
-    ],
-    "data": [
-      ["2018-10-03 14:38:05.000", 10.3, 219, 0.31],
-      ["2018-10-03 14:38:15.000", 12.6, 218, 0.33]
-    ],
-    "rows": 2
-  }
-  ```
- 创建库 demo：
-  ```bash
-  curl -H 'Authorization: Basic cm9vdDp0YW9zZGF0YQ==' -d 'create database demo' 192.168.0.1:6041/rest/sql
-  ```
-  返回值：
-  ```json
-  {
-    "status": "succ",
-    "head": ["affected_rows"],
-    "column_meta": [["affected_rows", 4, 4]],
-    "data": [[1]],
-    "rows": 1
-  }
-  ```
-## 其他用法
-### 结果集采用 Unix 时间戳
-HTTP 请求 URL 采用 `/rest/sqlt` 时，返回结果集的时间戳将采用 Unix 时间戳格式表示，例如
-```bash
-curl -H 'Authorization: Basic cm9vdDp0YW9zZGF0YQ==' -d 'select * from demo.d1001' 192.168.0.1:6041/rest/sqlt
-```
-返回结果：
-```json
-{
-  "status": "succ",
-  "head": ["ts", "current", "voltage", "phase"],
-  "column_meta": [
-    ["ts", 9, 8],
-    ["current", 6, 4],
-    ["voltage", 4, 4],
-    ["phase", 6, 4]
-  ],
-  "data": [
-    [1538548685000, 10.3, 219, 0.31],
-    [1538548695000, 12.6, 218, 0.33]
-  ],
-  "rows": 2
-}
-```
-### 结果集采用 UTC 时间字符串
-HTTP 请求 URL 采用 `/rest/sqlutc` 时，返回结果集的时间戳将采用 UTC 时间字符串表示，例如
-```bash
-  curl -H 'Authorization: Basic cm9vdDp0YW9zZGF0YQ==' -d 'select * from demo.t1' 192.168.0.1:6041/rest/sqlutc
-```
-返回值：
-```json
-{
-  "status": "succ",
-  "head": ["ts", "current", "voltage", "phase"],
-  "column_meta": [
-    ["ts", 9, 8],
-    ["current", 6, 4],
-    ["voltage", 4, 4],
-    ["phase", 6, 4]
-  ],
-  "data": [
-    ["2018-10-03T14:38:05.000+0800", 10.3, 219, 0.31],
-    ["2018-10-03T14:38:15.000+0800", 12.6, 218, 0.33]
-  ],
-  "rows": 2
-}
-```
-## 重要配置项
-下面仅列出一些与 RESTful 接口有关的配置参数，其他系统参数请看配置文件里的说明。
- 对外提供 RESTful 服务的端口号，默认绑定到 6041（实际取值是 serverPort + 11，因此可以通过修改 serverPort 参数的设置来修改）。
- httpMaxThreads: 启动的线程数量，默认为 2（2.0.17.0 版本开始，默认值改为 CPU 核数的一半向下取整）。
- restfulRowLimit: 返回结果集（JSON 格式）的最大条数，默认值为 10240。
- httpEnableCompress: 是否支持压缩，默认不支持，目前 TDengine 仅支持 gzip 压缩格式。
- httpDebugFlag: 日志开关，默认 131。131：仅错误和报警信息，135：调试信息，143：非常详细的调试信息。
- httpDbNameMandatory: 是否必须在 RESTful URL 中指定默认的数据库名。默认为 0，即关闭此检查。如果设置为 1，那么每个 RESTful URL 中都必须设置一个默认数据库名，否则无论此时执行的 SQL 语句是否需要指定数据库，都会返回一个执行错误，拒绝执行此 SQL 语句。
-:::note
-如果使用 taosd 提供的 REST API, 那么以上配置需要写在 taosd 的配置文件 taos.cfg 中。如果使用 taosAdapter 提供的 REST API, 那么需要参考 taosAdapter [对应的配置方法](/reference/taosadapter/)。
-:::
--- a/docs-cn/14-reference/03-connector/_verify_linux.mdx
+++ b/docs-cn/14-reference/03-connector/_verify_linux.mdx
-在 Linux shell 下直接执行 `taos` 连接到 TDengine 服务，进入到 TDengine CLI 界面，示例如下：
-```text
-$ taos
-Welcome to the TDengine shell from Linux, Client  Version:2.0.5.0
-Copyright (c) 2017 by TAOS Data, Inc. All rights  reserved.
-taos> show databases;
-name       |   created_time    |   ntables  |  vgroups   | replica | quorum | days |    keep1,keep2,keep(D)   | cache(MB)|   blocks  |  minrows   |  maxrows  | wallevel |  fsync    | comp | precision |    status  |
-=========================================================================================================================================================================================================================
-test       | 2020-10-14  10:35:48.617 |     10 |      1 |    1 |   1 |     2 | 3650,3650,3650        |     16|      6 |     100 |    4096 |    1 |    3000 |  2 | ms      | ready    |
-log        | 2020-10-12  09:08:21.651 |      4 |      1 |    1 |   1 |   10 | 30,30,30               |      1|      3 |     100 |    4096 |    1 |    3000 |  2 | us    | ready    |
-Query OK, 2 row(s) in set (0.001198s)
-taos>
-```
--- a/docs-cn/14-reference/03-connector/_verify_windows.mdx
+++ b/docs-cn/14-reference/03-connector/_verify_windows.mdx
-在 cmd 下进入到 C:\TDengine 目录下直接执行 `taos.exe`，连接到 TDengine 服务，进入到 TDengine CLI 界面，示例如下：
-```text
-  C:\TDengine>taos
-  Welcome to the TDengine  shell from Linux, Client Version:2.0.5.0
-  Copyright (c) 2017 by  TAOS Data, Inc. All rights reserved.
-  taos> show  databases;
-  name       |   created_time    |   ntables  |  vgroups   | replica | quorum | days |    keep1,keep2,keep(D)   | cache(MB)   |  blocks  |   minrows  |  maxrows   | wallevel |  fsync  | comp | precision |  status    |
-  ===================================================================================================================================================================================================================================================================
-  test       | 2020-10-14  10:35:48.617 |     10 |      1 |    1 |   1 |     2 | 3650,3650,3650        |     16 |      6 |     100 |    4096 |    1 |    3000 |  2 | ms    | ready    |
-  log        | 2020-10-12  09:08:21.651 |      4 |      1 |    1 |   1 |    10 | 30,30,30              |      1 |      3 |     100 |    4096 |    1 |    3000 |  2 | us    | ready    |
-  Query OK, 2 row(s) in  set (0.045000s)
-  taos>
-```
--- a/docs-cn/14-reference/03-connector/go.mdx
+++ b/docs-cn/14-reference/03-connector/go.mdx
---
-toc_max_heading_level: 4
-sidebar_position: 4
-sidebar_label: Go
-title: TDengine Go Connector
---
-import Tabs from '@theme/Tabs';
-import TabItem from '@theme/TabItem';
-import Preparition from "./_preparition.mdx"
-import GoInsert from "../../07-develop/03-insert-data/_go_sql.mdx"
-import GoInfluxLine from "../../07-develop/03-insert-data/_go_line.mdx"
-import GoOpenTSDBTelnet from "../../07-develop/03-insert-data/_go_opts_telnet.mdx"
-import GoOpenTSDBJson from "../../07-develop/03-insert-data/_go_opts_json.mdx"
-import GoQuery from "../../07-develop/04-query-data/_go.mdx"
-`driver-go` 是 TDengine 的官方 Go 语言连接器，实现了 Go 语言[ database/sql ](https://golang.org/pkg/database/sql/) 包的接口。Go 开发人员可以通过它开发存取 TDengine 集群数据的应用软件。
-`driver-go` 提供两种建立连接的方式。一种是**原生连接**，它通过 TDengine 客户端驱动程序（taosc）原生连接 TDengine 运行实例，支持数据写入、查询、订阅、schemaless 接口和参数绑定接口等功能。另外一种是 **REST 连接**，它通过 taosAdapter 提供的 REST 接口连接 TDengine 运行实例。REST 连接实现的功能特性集合和原生连接有少量不同。
-本文介绍如何安装 `driver-go`，并通过 `driver-go` 连接 TDengine 集群、进行数据查询、数据写入等基本操作。
-`driver-go` 的源码托管在 [GitHub](https://github.com/taosdata/driver-go)。
-## 支持的平台
-原生连接支持的平台和 TDengine 客户端驱动支持的平台一致。
-REST 连接支持所有能运行 Go 的平台。
-## 版本支持
-请参考[版本支持列表](/reference/connector#版本支持)
-## 支持的功能特性
-### 原生连接
-“原生连接”指连接器通过 TDengine 客户端驱动（taosc）直接与 TDengine 运行实例建立的连接。支持的功能特性有：
-* 普通查询
-* 连续查询
-* 订阅
-* schemaless 接口
-* 参数绑定接口
-### REST 连接
-"REST 连接"指连接器通过 taosAdapter 组件提供的 REST API 与 TDengine 运行实例建立的连接。支持的功能特性有：
-* 普通查询
-* 连续查询
-## 安装步骤
-### 安装前准备
-* 安装 Go 开发环境（Go 1.14 及以上，GCC 4.8.5 及以上）
-* 如果使用原生连接器，请安装 TDengine 客户端驱动，具体步骤请参考[安装客户端驱动](/reference/connector#安装客户端驱动)
-配置好环境变量，检查命令：
-* ```go env```
-* ```gcc -v```
-### 使用 go get 安装
-`go get -u github.com/taosdata/driver-go/v2@develop`
-### 使用 go mod 管理
-1. 使用 `go mod` 命令初始化项目：
-  ```text
-  go mod init taos-demo
-  ```
-2. 引入 taosSql ：
-  ```go
-  import (
-    "database/sql"
-    _ "github.com/taosdata/driver-go/v2/taosSql"
-  )
-  ```
-3. 使用 `go mod tidy` 更新依赖包：
-  ```text
-  go mod tidy
-  ```
-4. 使用 `go run taos-demo` 运行程序或使用 `go build` 命令编译出二进制文件。
-  ```text
-  go run taos-demo
-  go build
-  ```
-## 建立连接
-### 数据源名称（DSN）
-数据源名称具有通用格式，例如 [PEAR DB](http://pear.php.net/manual/en/package.database.db.intro-dsn.php)，但没有类型前缀（方括号表示可选）：
-``` text
-[username[:password]@][protocol[(address)]]/[dbname][?param1=value1&...&paramN=valueN]
-```
-完整形式的 DSN：
-```text
-username:password@protocol(address)/dbname?param=value
-```
-### 使用连接器进行连接
-<Tabs defaultValue="native">
-<TabItem value="native" label="原生连接">
-_taosSql_ 通过 cgo 实现了 Go 的 `database/sql/driver` 接口。只需要引入驱动就可以使用 [`database/sql`](https://golang.org/pkg/database/sql/) 的接口。
-使用 `taosSql` 作为 `driverName` 并且使用一个正确的 [DSN](#DSN) 作为 `dataSourceName`，DSN 支持的参数：
-* configPath 指定 taos.cfg 目录
-示例：
-```go
-package main
-import (
-    "database/sql"
-    "fmt"
-    _ "github.com/taosdata/driver-go/v2/taosSql"
-)
-func main() {
-    var taosUri = "root:taosdata@tcp(localhost:6030)/"
-    taos, err := sql.Open("taosSql", taosUri)
-    if err != nil {
-        fmt.Println("failed to connect TDengine, err:", err)
-        return
-    }
-}
-```
-</TabItem>
-<TabItem value="rest" label="REST 连接">
-_taosRestful_ 通过 `http client` 实现了 Go 的 `database/sql/driver` 接口。只需要引入驱动就可以使用[`database/sql`](https://golang.org/pkg/database/sql/)的接口。
-使用 `taosRestful` 作为 `driverName` 并且使用一个正确的 [DSN](#DSN) 作为 `dataSourceName`，DSN 支持的参数：
-* `disableCompression` 是否接受压缩数据，默认为 true 不接受压缩数据，如果传输数据使用 gzip 压缩设置为 false。
-* `readBufferSize` 读取数据的缓存区大小默认为 4K（4096），当查询结果数据量多时可以适当调大该值。
-示例：
-```go
-package main
-import (
-    "database/sql"
-    "fmt"
-    _ "github.com/taosdata/driver-go/v2/taosRestful"
-)
-func main() {
-    var taosUri = "root:taosdata@http(localhost:6041)/"
-    taos, err := sql.Open("taosRestful", taosUri)
-    if err != nil {
-        fmt.Println("failed to connect TDengine, err:", err)
-        return
-    }
-}
-```
-</TabItem>
-</Tabs>
-## 使用示例
-### 写入数据
-#### SQL 写入
-<GoInsert />
-#### InfluxDB 行协议写入
-<GoInfluxLine />
-#### OpenTSDB Telnet 行协议写入
-<GoOpenTSDBTelnet />
-#### OpenTSDB JSON 行协议写入
-<GoOpenTSDBJson />
-### 查询数据
-<GoQuery />
-### 更多示例程序
-* [示例程序](https://github.com/taosdata/TDengine/tree/develop/examples/go)
-* [视频教程](https://www.taosdata.com/blog/2020/11/11/1951.html)。
-## 使用限制
-由于 REST 接口无状态所以 `use db` 语法不会生效，需要将 db 名称放到 SQL 语句中，如：`create table if not exists tb1 (ts timestamp, a int)`改为`create table if not exists test.tb1 (ts timestamp, a int)`否则将报错`[0x217] Database not specified or available`。
-也可以将 db 名称放到 DSN 中，将 `root:taosdata@http(localhost:6041)/` 改为 `root:taosdata@http(localhost:6041)/test`，此方法在 TDengine 2.4.0.5 版本的 taosAdapter 开始支持。当指定的 db 不存在时执行 `create database` 语句不会报错，而执行针对该 db 的其他查询或写入操作会报错。
-完整示例如下：
-```go
-package main
-import (
-    "database/sql"
-    "fmt"
-    "time"
-    _ "github.com/taosdata/driver-go/v2/taosRestful"
-)
-func main() {
-    var taosDSN = "root:taosdata@http(localhost:6041)/test"
-    taos, err := sql.Open("taosRestful", taosDSN)
-    if err != nil {
-        fmt.Println("failed to connect TDengine, err:", err)
-        return
-    }
-    defer taos.Close()
-    taos.Exec("create database if not exists test")
-    taos.Exec("create table if not exists tb1 (ts timestamp, a int)")
-    _, err = taos.Exec("insert into tb1 values(now, 0)(now+1s,1)(now+2s,2)(now+3s,3)")
-    if err != nil {
-        fmt.Println("failed to insert, err:", err)
-        return
-    }
-    rows, err := taos.Query("select * from tb1")
-    if err != nil {
-        fmt.Println("failed to select from table, err:", err)
-        return
-    }
-    defer rows.Close()
-    for rows.Next() {
-        var r struct {
-            ts time.Time
-            a  int
-        }
-        err := rows.Scan(&r.ts, &r.a)
-        if err != nil {
-            fmt.Println("scan error:\n", err)
-            return
-        }
-        fmt.Println(r.ts, r.a)
-    }
-}
-```
-## 常见问题
-1. 无法找到包 `github.com/taosdata/driver-go/v2/taosRestful`
-  将 `go.mod` 中 require 块对`github.com/taosdata/driver-go/v2`的引用改为`github.com/taosdata/driver-go/v2 develop`，之后执行 `go mod tidy`。
-2. database/sql 中 stmt（参数绑定）相关接口崩溃
-  REST 不支持参数绑定相关接口，建议使用`db.Exec`和`db.Query`。
-3. 使用 `use db` 语句后执行其他语句报错 `[0x217] Database not specified or available`
-  在 REST 接口中 SQL 语句的执行无上下文关联，使用 `use db` 语句不会生效，解决办法见上方使用限制章节。
-4. 使用 taosSql 不报错使用 taosRestful 报错 `[0x217] Database not specified or available`
-  因为 REST 接口无状态，使用 `use db` 语句不会生效，解决办法见上方使用限制章节。
-5. 升级 `github.com/taosdata/driver-go/v2/taosRestful`
-  将 `go.mod` 文件中对 `github.com/taosdata/driver-go/v2` 的引用改为 `github.com/taosdata/driver-go/v2 develop`，之后执行 `go mod tidy`。
-6. `readBufferSize` 参数调大后无明显效果
-  `readBufferSize` 调大后会减少获取结果时 `syscall` 的调用。如果查询结果的数据量不大，修改该参数不会带来明显提升，如果该参数修改过大，瓶颈会在解析 JSON 数据。如果需要优化查询速度，需要根据实际情况调整该值来达到查询效果最优。
-7. `disableCompression` 参数设置为 `false` 时查询效率降低
-  当 `disableCompression` 参数设置为 `false` 时查询结果会使用 `gzip` 压缩后传输，拿到数据后要先进行 `gzip` 解压。
-8. `go get` 命令无法获取包，或者获取包超时
-  设置 Go 代理 `go env -w GOPROXY=https://goproxy.cn,direct`。
-## 常用 API
-### database/sql API
-* `sql.Open(DRIVER_NAME string, dataSourceName string) *DB`
-  该 API 用来打开 DB，返回一个类型为 \*DB 的对象。
-:::info
-该 API 成功创建的时候，并没有做权限等检查，只有在真正执行 Query 或者 Exec 的时候才能真正的去创建连接，并同时检查 user/password/host/port 是不是合法。
-:::
-* `func (db *DB) Exec(query string, args ...interface{}) (Result, error)`
-  `sql.Open` 内置的方法，用来执行非查询相关 SQL。
-* `func (db *DB) Query(query string, args ...interface{}) (*Rows, error)`
-  `sql.Open` 内置的方法，用来执行查询语句。
-### 高级功能（af）API
-`af` 包封装了连接管理、订阅、schemaless、参数绑定等 TDengine 高级功能。
-#### 连接管理
-* `af.Open(host, user, pass, db string, port int) (*Connector, error)`
-  该 API 通过 cgo 创建与 taosd 的连接。
-* `func (conn *Connector) Close() error`
-  关闭与 taosd 的连接。
-#### 订阅
-* `func (conn *Connector) Subscribe(restart bool, topic string, sql string, interval time.Duration) (Subscriber, error)`
-  订阅数据。
-* `func (s *taosSubscriber) Consume() (driver.Rows, error)`
-  消费订阅数据，返回 `database/sql/driver` 包的 `Rows` 结构。
-* `func (s *taosSubscriber) Unsubscribe(keepProgress bool)`
-  取消订阅数据。
-#### schemaless
-* `func (conn *Connector) InfluxDBInsertLines(lines []string, precision string) error`
-  写入 influxDB 行协议。
-* `func (conn *Connector) OpenTSDBInsertTelnetLines(lines []string) error`
-  写入 OpenTDSB telnet 协议数据。
-* `func (conn *Connector) OpenTSDBInsertJsonPayload(payload string) error`
-  写入 OpenTSDB JSON 协议数据。
-#### 参数绑定
-* `func (conn *Connector) StmtExecute(sql string, params *param.Param) (res driver.Result, err error)`
-  参数绑定单行插入。
-* `func (conn *Connector) StmtQuery(sql string, params *param.Param) (rows driver.Rows, err error)`
-  参数绑定查询，返回 `database/sql/driver` 包的 `Rows` 结构。
-* `func (conn *Connector) InsertStmt() *insertstmt.InsertStmt`
-  初始化参数。
-* `func (stmt *InsertStmt) Prepare(sql string) error`
-  参数绑定预处理 SQL 语句。
-* `func (stmt *InsertStmt) SetTableName(name string) error`
-  参数绑定设置表名。
-* `func (stmt *InsertStmt) SetSubTableName(name string) error`
-  参数绑定设置子表名。
-* `func (stmt *InsertStmt) BindParam(params []*param.Param, bindType *param.ColumnType) error`
-  参数绑定多行数据。
-* `func (stmt *InsertStmt) AddBatch() error`
-  添加到参数绑定批处理。
-* `func (stmt *InsertStmt) Execute() error`
-  执行参数绑定。
-* `func (stmt *InsertStmt) GetAffectedRows() int`
-  获取参数绑定插入受影响行数。
-* `func (stmt *InsertStmt) Close() error`
-  结束参数绑定。
-## API 参考
-全部 API 见 [driver-go 文档](https://pkg.go.dev/github.com/taosdata/driver-go/v2)
--- a/docs-cn/14-reference/03-connector/java.mdx
+++ b/docs-cn/14-reference/03-connector/java.mdx
--- a/docs-cn/14-reference/03-connector/python.mdx
+++ b/docs-cn/14-reference/03-connector/python.mdx
---
-sidebar_position: 3
-sidebar_label: Python
-title: TDengine Python Connector
-description: "taospy 是 TDengine 的官方 Python 连接器。taospy 提供了丰富的 API， 使得 Python 应用可以很方便地使用 TDengine。tasopy 对 TDengine 的原生接口和 REST 接口都进行了封装， 分别对应 tasopy 的两个子模块：tasos 和 taosrest。除了对原生接口和 REST 接口的封装，taospy 还提供了符合 Python 数据访问规范(PEP 249)的编程接口。这使得 taospy 和很多第三方工具集成变得简单，比如 SQLAlchemy 和 pandas"
---
-import Tabs from "@theme/Tabs";
-import TabItem from "@theme/TabItem";
-`taospy` 是 TDengine 的官方 Python 连接器。`taospy` 提供了丰富的 API， 使得 Python 应用可以很方便地使用 TDengine。`taospy` 对 TDengine 的[原生接口](/reference/connector/cpp)和 [REST 接口](/reference/rest-api)都进行了封装， 分别对应 `taospy` 包的 `taos` 模块 和 `taosrest` 模块。
-除了对原生接口和 REST 接口的封装，`taospy` 还提供了符合 [Python 数据访问规范(PEP 249)](https://peps.python.org/pep-0249/) 的编程接口。这使得 `taospy` 和很多第三方工具集成变得简单，比如 [SQLAlchemy](https://www.sqlalchemy.org/) 和 [pandas](https://pandas.pydata.org/)。
-使用客户端驱动提供的原生接口直接与服务端建立的连接的方式下文中称为“原生连接”；使用 taosAdapter 提供的 REST 接口与服务端建立的连接的方式下文中称为“REST 连接”。
-Python 连接器的源码托管在 [GitHub](https://github.com/taosdata/taos-connector-python)。
-## 支持的平台
- 原生连接[支持的平台](/reference/connector/#支持的平台)和 TDengine 客户端支持的平台一致。
- REST 连接支持所有能运行 Python 的平台。
-## 版本选择
-无论使用什么版本的 TDengine 都建议使用最新版本的 `taospy`。
-## 支持的功能
- 原生连接支持 TDeingine 的所有核心功能， 包括： 连接管理、执行 SQL、参数绑定、订阅、无模式写入（schemaless）。
- REST 连接支持的功能包括：连接管理、执行 SQL。 (通过执行 SQL 可以： 管理数据库、管理表和超级表、写入数据、查询数据、创建连续查询等)。
-## 安装
-### 准备
-1. 安装 Python。建议使用 Python >= 3.6。如果系统上还没有 Python 可参考 [Python BeginnersGuide](https://wiki.python.org/moin/BeginnersGuide/Download) 安装。
-2. 安装 [pip](https://pypi.org/project/pip/)。大部分情况下 Python 的安装包都自带了 pip 工具， 如果没有请参考 [pip docuemntation](https://pip.pypa.io/en/stable/installation/) 安装。
-3. 如果使用原生连接，还需[安装客户端驱动](../#安装客户端驱动)。客户端软件包含了 TDengine 客户端动态链接库(libtaos.so 或 taos.dll) 和 TDengine CLI。
-### 使用 pip 安装
-#### 卸载旧版本
-如果以前安装过旧版本的 Python 连接器, 请提前卸载。
-```
-pip3 uninstall taos taospy
-```
-:::note
-较早的 TDengine 客户端软件包含了 Python 连接器。如果从客户端软件的安装目录安装了 Python 连接器，那么对应的 Python 包名是 `taos`。 所以上述卸载命令包含了 `taos`， 不存在也没关系。
-:::
-#### 安装 `taospy`
-<Tabs>
-<TabItem label="从 PyPI 安装" value="pypi">
-安装最新版本
-```
-pip3 install taospy
-```
-也可以指定某个特定版本安装。
-```
-pip3 install taospy==2.3.0
-```
-</TabItem>
-<TabItem label="从 GitHub 安装" value="github">
-```
-pip3 install git+https://github.com/taosdata/taos-connector-python.git
-```
-</TabItem>
-</Tabs>
-### 安装验证
-<Tabs groupId="connect" default="native">
-<TabItem value="native" label="原生连接">
-对于原生连接，需要验证客户端驱动和 Python 连接器本身是否都正确安装。如果能成功导入 `taos` 模块，则说明已经正确安装了客户端驱动和 Python 连接器。可在 Python 交互式 Shell 中输入：
-```python
-import taos
-```
-</TabItem>
-<TabItem  value="rest" label="REST 连接">
-对于 REST 连接，只需验证是否能成功导入 `taosrest` 模块。可在 Python 交互式 Shell 中输入：
-```python
-import taosrest
-```
-</TabItem>
-</Tabs>
-:::tip
-如果系统上有多个版本的 Python，则可能有多个 `pip` 命令。要确保使用的 `pip` 命令路径是正确的。上面我们用 `pip3` 命令安装，排除了使用 Python 2.x 版本对应的 `pip` 的可能性。但是如果系统上有多个 Python 3.x 版本，仍需检查安装路径是否正确。最简单的验证方式是，在命令再次输入 `pip3 install taospy`, 就会打印出 `taospy` 的具体安装位置，比如在 Windows 上：
-```
-C:\> pip3 install taospy
-Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple
-Requirement already satisfied: taospy in c:\users\username\appdata\local\programs\python\python310\lib\site-packages (2.3.0)
-```
-:::
-## 建立连接
-### 连通性测试
-在用连接器建立连接之前，建议先测试本地 TDengine CLI 到 TDengine 集群的连通性。
-<Tabs>
-<TabItem value="native" label="原生连接">
-请确保 TDengine 集群已经启动， 且集群中机器的 FQDN （如果启动的是单机版，FQDN 默认为 hostname）在本机能够解析, 可用 `ping` 命令进行测试：
-```
-ping <FQDN>
-```
-然后测试用 TDengine CLI 能否正常连接集群：
-```
-taos -h <FQDN> -p <PORT>
-```
-上面的 FQDN 可以为集群中任意一个 dnode 的 FQDN， PORT 为这个 dnode 对应的 serverPort。
-</TabItem>
-<TabItem value="rest" label="REST 连接" groupId="connect">
-对于 REST 连接， 除了确保集群已经启动，还要确保 taosAdapter 组件已经启动。可以使用如下 curl 命令测试：
-```
-curl -u root:taosdata http://<FQDN>:<PORT>/rest/sql -d "select server_version()"
-```
-上面的 FQDN 为运行 taosAdapter 的机器的 FQDN， PORT 为 taosAdapter 配置的监听端口， 默认为 6041。
-如果测试成功，会输出服务器版本信息，比如：
-```json
-{
-  "status": "succ",
-  "head": ["server_version()"],
-  "column_meta": [["server_version()", 8, 8]],
-  "data": [["2.4.0.16"]],
-  "rows": 1
-}
-```
-</TabItem>
-</Tabs>
-### 使用连接器建立连接
-以下示例代码假设 TDengine 安装在本机， 且 FQDN 和 serverPort 都使用了默认配置。
-<Tabs>
-<TabItem value="native" label="原生连接" groupId="connect">
-```python
-{{#include docs-examples/python/connect_native_reference.py}}
-```
-`connect` 函数的所有参数都是可选的关键字参数。下面是连接参数的具体说明：
- `host` ： 要连接的节点的 FQDN。 没有默认值。如果不同提供此参数，则会连接客户端配置文件中的 firstEP。
- `user` ：TDengine 用户名。 默认值是 root。
- `password` ： TDengine 用户密码。 默认值是 taosdata。
- `port` ： 要连接的数据节点的起始端口，即 serverPort 配置。默认值是 6030。只有在提供了 host 参数的时候，这个参数才生效。
- `config` ： 客户端配置文件路径。 在 Windows 系统上默认是 `C:\TDengine\cfg`。 在 Linux 系统上默认是 `/etc/taos/`。
- `timezone` ： 查询结果中 TIMESTAMP 类型的数据，转换为 python 的 datetime 对象时使用的时区。默认为本地时区。
-:::warning
-`config` 和 `timezone` 都是进程级别的配置。建议一个进程建立的所有连接都使用相同的参数值。否则可能产生无法预知的错误。
-:::
-:::tip
-`connect` 函数返回 `taos.TaosConnection` 实例。 在客户端多线程的场景下，推荐每个线程申请一个独立的连接实例，而不建议多线程共享一个连接。
-:::
-</TabItem>
-<TabItem value="rest" label="REST 连接">
-```python
-{{#include docs-examples/python/connect_rest_examples.py:connect}}
-```
-`connect()` 函数的所有参数都是可选的关键字参数。下面是连接参数的具体说明：
- `host`： 要连接的主机。默认是 localhost。
- `user`： TDenigne 用户名。默认是 root。
- `password`： TDeingine 用户密码。默认是 taosdata。
- `port`: taosAdapter REST 服务监听端口。默认是 6041.
- `timeout`: HTTP 请求超时时间。单位为秒。默认为 `socket._GLOBAL_DEFAULT_TIMEOUT`。 一般无需配置。
-</TabItem>
-</Tabs>
-## 示例程序
-### 基本使用
-<Tabs default="native" groupId="connect">
-<TabItem value="native" label="原生连接">
-##### TaosConnection 类的使用
-`TaosConnection` 类既包含对 PEP249 Connection 接口的实现(如：`cursor`方法和 `close` 方法)，也包含很多扩展功能（如： `execute`、 `query`、`schemaless_insert` 和 `subscribe` 方法。
-```python title="execute 方法"
-{{#include docs-examples/python/connection_usage_native_reference.py:insert}}
-```
-```python title="query 方法"
-{{#include docs-examples/python/connection_usage_native_reference.py:query}}
-```
-:::tip
-查询结果只能获取一次。比如上面的示例中 `fetch_all()` 和 `fetch_all_into_dict()` 只能用一个。重复获取得到的结果为空列表。
-:::
-##### TaosResult 类的使用
-上面 `TaosConnection` 类的使用示例中，我们已经展示了两种获取查询结果的方法： `fetch_all()` 和 `fetch_all_into_dict()`。除此之外 `TaosResult` 还提供了按行迭代(`rows_iter`)或按数据块迭代(`blocks_iter`)结果集的方法。在查询数据量较大的场景，使用这两个方法会更高效。
-```python title="blocks_iter 方法"
-{{#include docs-examples/python/result_set_examples.py}}
-```
-##### TaosCursor 类的使用
-`TaosConnection` 类和 `TaosResult` 类已经实现了原生接口的所有功能。如果你对 PEP249 规范中的接口比较熟悉也可以使用 `TaosCursor` 类提供的方法。
-```python title="TaosCursor 的使用"
-{{#include docs-examples/python/cursor_usage_native_reference.py}}
-```
-:::note
-TaosCursor 类使用原生连接进行写入、查询操作。在客户端多线程的场景下，这个游标实例必须保持线程独享，不能跨线程共享使用，否则会导致返回结果出现错误。
-:::
-</TabItem>
-<TabItem value="rest" label="REST 连接">
-#####  TaosRestCursor 类的使用
-`TaosRestCursor` 类是对 PEP249 Cursor 接口的实现。
-```python title="TaosRestCursor 的使用"
-{{#include docs-examples/python/connect_rest_examples.py:basic}}
-```
- `cursor.execute` ： 用来执行任意 SQL 语句。
- `cursor.rowcount`： 对于写入操作返回写入成功记录数。对于查询操作，返回结果集行数。
- `cursor.description` ： 返回字段的描述信息。关于描述信息的具体格式请参考[TaosRestCursor](https://docs.taosdata.com/api/taospy/taosrest/cursor.html)。
-##### RestClient 类的使用
-`RestClient` 类是对于 [REST API](/reference/rest-api) 的直接封装。它只包含一个 `sql()` 方法用于执行任意 SQL 语句， 并返回执行结果。
-```python title="RestClient 的使用"
-{{#include docs-examples/python/rest_client_example.py}}
-```
-对于 `sql()` 方法更详细的介绍， 请参考 [RestClient](https://docs.taosdata.com/api/taospy/taosrest/restclient.html)。
-</TabItem>
-</Tabs>
-### 与 pandas 一起使用
-<Tabs default="native" groupId="connect">
-<TabItem value="native" label="原生连接">
-```python
-{{#include docs-examples/python/conn_native_pandas.py}}
-```
-</TabItem>
-<TabItem value="rest" label="REST 连接">
-```python
-{{#include docs-examples/python/conn_rest_pandas.py}}
-```
-</TabItem>
-</Tabs>
-### 其它示例程序
-| 示例程序链接                                                                                                  | 示例程序内容            |
-| ------------------------------------------------------------------------------------------------------------- | ----------------------- |
-| [bind_multi.py](https://github.com/taosdata/taos-connector-python/blob/main/examples/bind-multi.py)           | 参数绑定， 一次绑定多行 |
-| [bind_row.py](https://github.com/taosdata/taos-connector-python/blob/main/examples/bind-row.py)               | 参数绑定，一次绑定一行  |
-| [insert_lines.py](https://github.com/taosdata/taos-connector-python/blob/main/examples/insert-lines.py)       | InfluxDB 行协议写入     |
-| [json_tag.py](https://github.com/taosdata/taos-connector-python/blob/main/examples/json-tag.py)               | 使用 JSON 类型的标签    |
-| [subscribe-async.py](https://github.com/taosdata/taos-connector-python/blob/main/examples/subscribe-async.py) | 异步订阅                |
-| [subscribe-sync.py](https://github.com/taosdata/taos-connector-python/blob/main/examples/subscribe-sync.py)   | 同步订阅                |
-## 其它说明 
-### 异常处理
-所有数据库操作如果出现异常，都会直接抛出来。由应用程序负责异常处理。比如：
-```python
-{{#include docs-examples/python/handle_exception.py}}
-```
-### 关于纳秒 (nanosecond)
-由于目前 Python 对 nanosecond 支持的不完善(见下面的链接)，目前的实现方式是在 nanosecond 精度时返回整数，而不是 ms 和 us 返回的 datetime 类型，应用开发者需要自行处理，建议使用 pandas 的 to_datetime()。未来如果 Python 正式完整支持了纳秒，Python 连接器可能会修改相关接口。
-1. https://stackoverflow.com/questions/10611328/parsing-datetime-strings-containing-nanoseconds
-2. https://www.python.org/dev/peps/pep-0564/
-## 常见问题
-欢迎[提问或报告问题](https://github.com/taosdata/taos-connector-python/issues)。
-## 重要更新
-| 连接器版本 | 重要更新                                                                          | 发布日期   |
-| ---------- | --------------------------------------------------------------------------------- | ---------- |
-| 2.3.1      | 1. support TDengine REST API <br/> 2. remove support for Python version below 3.6 | 2022-04-28 |
-| 2.2.5      | support timezone option when connect                                              | 2022-04-13 |
-| 2.2.2      | support sqlalchemy dialect plugin                                                 | 2022-03-28 |
-[**Release Notes**](https://github.com/taosdata/taos-connector-python/releases)
-## API 参考
- [taos](https://docs.taosdata.com/api/taospy/taos/)
- [taosrest](https://docs.taosdata.com/api/taospy/taosrest)
--- a/docs-cn/14-reference/04-taosadapter.md
+++ b/docs-cn/14-reference/04-taosadapter.md
--- a/docs-cn/14-reference/05-taosbenchmark.md
+++ b/docs-cn/14-reference/05-taosbenchmark.md
--- a/docs-cn/14-reference/06-taosdump.md
+++ b/docs-cn/14-reference/06-taosdump.md
---
-title: taosdump
-description: "taosdump 是一个支持从运行中的 TDengine 集群备份数据并将备份的数据恢复到相同或另一个运行中的 TDengine 集群中的工具应用程序"
---
-## 简介
-taosdump 是一个支持从运行中的 TDengine 集群备份数据并将备份的数据恢复到相同或另一个运行中的 TDengine 集群中的工具应用程序。
-taosdump 可以用数据库、超级表或普通表作为逻辑数据单元进行备份，也可以对数据库、超级
-表和普通表中指定时间段内的数据记录进行备份。使用时可以指定数据备份的目录路径，如果
-不指定位置，taosdump 默认会将数据备份到当前目录。
-如果指定的位置已经有数据文件，taosdump 会提示用户并立即退出，避免数据被覆盖。这意味着同一路径只能被用于一次备份。
-如果看到相关提示，请小心操作。
-taosdump 是一个逻辑备份工具，它不应被用于备份任何原始数据、环境设置、
-硬件信息、服务端配置或集群的拓扑结构。taosdump 使用
-[ Apache AVRO ](https://avro.apache.org/)作为数据文件格式来存储备份数据。
-## 安装
-taosdump 有两种安装方式:
- 安装 taosTools 官方安装包, 请从[所有下载链接](https://www.taosdata.com/all-downloads)页面找到 taosTools 并下载安装。
- 单独编译 taos-tools 并安装, 详情请参考 [taos-tools](https://github.com/taosdata/taos-tools) 仓库。
-## 常用使用场景
-### taosdump 备份数据
-1.  备份所有数据库：指定 `-A` 或 `--all-databases` 参数；
-2.  备份多个指定数据库：使用 `-D db1,db2,...` 参数；
-3.  备份指定数据库中的某些超级表或普通表：使用 `dbname stbname1 stbname2 tbname1 tbname2 ...` 参数，注意这种输入序列第一个参数为数据库名称，且只支持一个数据库，第二个和之后的参数为该数据库中的超级表或普通表名称，中间以空格分隔；
-4.  备份系统 log 库：TDengine 集群通常会包含一个系统数据库，名为 `log`，这个数据库内的数据为 TDengine 自我运行的数据，taosdump 默认不会对 log 库进行备份。如果有特定需求对 log 库进行备份，可以使用 `-a` 或 `--allow-sys` 命令行参数。
-5.  “宽容”模式备份：taosdump 1.4.1 之后的版本提供 `-n` 参数和 `-L` 参数，用于备份数据时不使用转义字符和“宽容”模式，可以在表名、列名、标签名没使用转义字符的情况下减少备份数据时间和备份数据占用空间。如果不确定符合使用 `-n` 和 `-L` 条件时请使用默认参数进行“严格”模式进行备份。转义字符的说明请参考[官方文档](/taos-sql/escape)。
-:::tip
- taosdump 1.4.1 之后的版本提供 `-I` 参数，用于解析 avro 文件 schema 和数据，如果指定 `-s` 参数将只解析 schema。
- taosdump 1.4.2 之后的备份使用 `-B` 参数指定的批次数，默认值为 16384，如果在某些环境下由于网络速度或磁盘性能不足导致 "Error actual dump .. batch .." 可以通过 `-B` 参数调整为更小的值进行尝试。
-:::
-### taosdump 恢复数据
-恢复指定路径下的数据文件：使用 `-i` 参数加上数据文件所在路径。如前面提及，不应该使用同一个目录备份不同数据集合，也不应该在同一路径多次备份同一数据集，否则备份数据会造成覆盖或多次备份。
-:::tip
-taosdump 内部使用 TDengine stmt binding API 进行恢复数据的写入，为提高数据恢复性能，目前使用 16384 为一次写入批次。如果备份数据中有比较多列数据，可能会导致产生 "WAL size exceeds limit" 错误，此时可以通过使用 `-B` 参数调整为一个更小的值进行尝试。
-:::
-## 详细命令行参数列表
-以下为 taosdump 详细命令行参数列表：
-```
-Usage: taosdump [OPTION...] dbname [tbname ...]
-  or:  taosdump [OPTION...] --databases db1,db2,...
-  or:  taosdump [OPTION...] --all-databases
-  or:  taosdump [OPTION...] -i inpath
-  or:  taosdump [OPTION...] -o outpath
-  -h, --host=HOST            Server host dumping data from. Default is
-                             localhost.
-  -p, --password             User password to connect to server. Default is
-                             taosdata.
-  -P, --port=PORT            Port to connect
-  -u, --user=USER            User name used to connect to server. Default is
-                             root.
-  -c, --config-dir=CONFIG_DIR   Configure directory. Default is /etc/taos
-  -i, --inpath=INPATH        Input file path.
-  -o, --outpath=OUTPATH      Output file path.
-  -r, --resultFile=RESULTFILE   DumpOut/In Result file path and name.
-  -a, --allow-sys            Allow to dump system database
-  -A, --all-databases        Dump all databases.
-  -D, --databases=DATABASES  Dump inputted databases. Use comma to separate
-                             databases' name.
-  -N, --without-property     Dump database without its properties.
-  -s, --schemaonly           Only dump tables' schema.
-  -y, --answer-yes           Input yes for prompt. It will skip data file
-                             checking!
-  -d, --avro-codec=snappy    Choose an avro codec among null, deflate, snappy,
-                             and lzma.
-  -S, --start-time=START_TIME   Start time to dump. Either epoch or
-                             ISO8601/RFC3339 format is acceptable. ISO8601
-                             format example: 2017-10-01T00:00:00.000+0800 or
-                             2017-10-0100:00:00:000+0800 or '2017-10-01
-                             00:00:00.000+0800'
-  -E, --end-time=END_TIME    End time to dump. Either epoch or ISO8601/RFC3339
-                             format is acceptable. ISO8601 format example:
-                             2017-10-01T00:00:00.000+0800 or
-                             2017-10-0100:00:00.000+0800 or '2017-10-01
-                             00:00:00.000+0800'
-  -B, --data-batch=DATA_BATCH   Number of data per query/insert statement when
-                             backup/restore. Default value is 16384. If you see
-                             'error actual dump .. batch ..' when backup or if
-                             you see 'WAL size exceeds limit' error when
-                             restore, please adjust the value to a smaller one
-                             and try. The workable value is related to the
-                             length of the row and type of table schema.
-  -I, --inspect              inspect avro file content and print on screen
-  -L, --loose-mode           Using loose mode if the table name and column name
-                             use letter and number only. Default is NOT.
-  -n, --no-escape            No escape char '`'. Default is using it.
-  -T, --thread-num=THREAD_NUM   Number of thread for dump in file. Default is
-                             5.
-  -g, --debug                Print debug info.
-  -?, --help                 Give this help list
-      --usage                Give a short usage message
-  -V, --version              Print program version
-Mandatory or optional arguments to long options are also mandatory or optional
-for any corresponding short options.
-Report bugs to <support@taosdata.com>.
-```
--- a/docs-cn/14-reference/08-taos-shell.md
+++ b/docs-cn/14-reference/08-taos-shell.md
---
-title: TDengine 命令行(CLI)
-sidebar_label: TDengine CLI
-description: TDengine CLI 的使用说明和技巧
---
-TDengine 命令行程序（以下简称 TDengine CLI）是用户操作 TDengine 实例并与之交互的最简洁最常用的方式。
-## 安装
-如果在 TDengine 服务器端执行，无需任何安装，已经自动安装好 TDengine CLI。如果要在非 TDengine 服务器端运行，需要安装 TDengine 客户端驱动安装包，具体安装，请参考 [连接器](/reference/connector/)。
-## 执行
-要进入 TDengine CLI，您只要在 Linux 终端或 Windows 终端执行 `taos` 即可。
-```bash
-taos
-```
-如果连接服务成功，将会打印出欢迎消息和版本信息。如果失败，则会打印错误消息。（请参考 [FAQ](/train-faq/faq) 来解决终端连接服务端失败的问题）。TDengine CLI 的提示符号如下：
-```cmd
-taos>
-```
-进入 TDengine CLI 后，你可执行各种 SQL 语句，包括插入、查询以及各种管理命令。
-## 执行 SQL 脚本
-在 TDengine CLI 里可以通过 `source` 命令来运行脚本文件中的多条 SQL 命令。
-```sql
-taos> source <filename>;
-```
-## 在线修改显示字符宽度
-可以在 TDengine CLI 里使用如下命令调整字符显示宽度
-```sql
-taos> SET MAX_BINARY_DISPLAY_WIDTH <nn>;
-```
-如显示的内容后面以 ... 结尾时，表示该内容已被截断，可通过本命令修改显示字符宽度以显示完整的内容。
-## 命令行参数
-您可通过配置命令行参数来改变 TDengine CLI 的行为。以下为常用的几个命令行参数：
- -h, --host=HOST: 要连接的 TDengine 服务端所在服务器的 FQDN, 默认为连接本地服务
- -P, --port=PORT: 指定服务端所用端口号
- -u, --user=USER: 连接时使用的用户名
- -p, --password=PASSWORD: 连接服务端时使用的密码
- -?, --help: 打印出所有命令行参数
-还有更多其他参数：
- -c, --config-dir: 指定配置文件目录，Linux 环境下默认为 `/etc/taos`，该目录下的配置文件默认名称为 `taos.cfg`
- -C, --dump-config: 打印 -c 指定的目录中 `taos.cfg` 的配置参数
- -d, --database=DATABASE: 指定连接到服务端时使用的数据库
- -D, --directory=DIRECTORY: 导入指定路径中的 SQL 脚本文件
- -f, --file=FILE: 以非交互模式执行 SQL 脚本文件。文件中一个 SQL 语句只能占一行
- -k, --check=CHECK: 指定要检查的表
- -l, --pktlen=PKTLEN: 网络测试时使用的测试包大小
- -n, --netrole=NETROLE: 网络连接测试时的测试范围，默认为 `startup`, 可选值为 `client`、`server`、`rpc`、`startup`、`sync`、`speed` 和 `fqdn` 之一
- -r, --raw-time: 将时间输出出无符号 64 位整数类型(即 C 语音中 uint64_t)
- -s, --commands=COMMAND: 以非交互模式执行的 SQL 命令
- -S, --pkttype=PKTTYPE: 指定网络测试所用的包类型，默认为 TCP。只有 netrole 为 `speed` 时既可以指定为 TCP 也可以指定为 UDP
- -T, --thread=THREADNUM: 以多线程模式导入数据时的线程数
- -s, --commands: 在不进入终端的情况下运行 TDengine 命令
- -z, --timezone=TIMEZONE: 指定时区，默认为本地时区
- -V, --version: 打印出当前版本号
-示例：
-```bash
-taos -h h1.taos.com -s "use db; show tables;"
-```
-## TDengine CLI 小技巧
- 可以使用上下光标键查看历史输入的指令
- 在 TDengine CLI 中使用 `alter user` 命令可以修改用户密码，缺省密码为 `taosdata`
- Ctrl+C 中止正在进行中的查询
- 执行 `RESET QUERY CACHE` 可清除本地表 Schema 的缓存
- 批量执行 SQL 语句。可以将一系列的 TDengine CLI 命令（以英文 ; 结尾，每个 SQL 语句为一行）按行存放在文件里，在 TDengine CLI 里执行命令 `source <file-name>` 自动执行该文件里所有的 SQL 语句
- 输入 `q` 或 `quit` 或 `exit` 回车，可以退出 TDengine CLI
--- a/docs-cn/14-reference/12-config/index.md
+++ b/docs-cn/14-reference/12-config/index.md
--- a/docs-cn/14-reference/12-directory.md
+++ b/docs-cn/14-reference/12-directory.md
---
-title: 文件目录结构
-description: "TDengine 安装目录说明"
---
-安装 TDengine 后，默认会在操作系统中生成下列目录或文件：
-| 目录/文件                 | 说明                                                                 |
-| ------------------------- | -------------------------------------------------------------------- |
-| /usr/local/taos/bin       | TDengine 可执行文件目录。其中的执行文件都会软链接到/usr/bin 目录下。 |
-| /usr/local/taos/driver    | TDengine 动态链接库目录。会软链接到/usr/lib 目录下。                 |
-| /usr/local/taos/examples  | TDengine 各种语言应用示例目录。                                      |
-| /usr/local/taos/include   | TDengine 对外提供的 C 语言接口的头文件。                             |
-| /etc/taos/taos.cfg        | TDengine 默认[配置文件]                                              |
-| /var/lib/taos             | TDengine 默认数据文件目录。可通过[配置文件]修改位置。                |
-| /var/log/taos             | TDengine 默认日志文件目录。可通过[配置文件]修改位置。                |
-## 可执行文件
-TDengine 的所有可执行文件默认存放在 _/usr/local/taos/bin_ 目录下。其中包括：
- _taosd_：TDengine 服务端可执行文件
- _taos_：TDengine Shell 可执行文件
- _taosdump_：数据导入导出工具
- _taosBenchmark_：TDengine 测试工具
- _remove.sh_：卸载 TDengine 的脚本，请谨慎执行，链接到/usr/bin 目录下的**rmtaos**命令。会删除 TDengine 的安装目录/usr/local/taos，但会保留/etc/taos、/var/lib/taos、/var/log/taos
- _taosadapter_: 提供 RESTful 服务和接受其他多种软件写入请求的服务端可执行文件
- _tarbitrator_: 提供双节点集群部署的仲裁功能
- _run_taosd_and_taosadapter.sh_：同时启动 taosd 和 taosAdapter 的脚本
- _TDinsight.sh_：用于下载 TDinsight 并安装的脚本
- _set_core.sh_：用于方便调试设置系统生成 core dump 文件的脚本
- _taosd-dump-cfg.gdb_：用于方便调试 taosd 的 gdb 执行脚本。
-:::note
-2.4.0.0 版本之后的 taosBenchmark 和 taosdump 需要安装独立安装包 taosTools。
-:::
-:::tip
-您可以通过修改系统配置文件 taos.cfg 来配置不同的数据目录和日志目录。
-:::
--- a/docs-cn/20-third-party/01-grafana.mdx
+++ b/docs-cn/20-third-party/01-grafana.mdx
--- a/docs-cn/20-third-party/09-emq-broker.md
+++ b/docs-cn/20-third-party/09-emq-broker.md
--- a/docs-cn/20-third-party/10-hive-mq-broker.md
+++ b/docs-cn/20-third-party/10-hive-mq-broker.md
---
-sidebar_label: HiveMQ Broker
-title: HiveMQ Broker 写入
---
-[HiveMQ](https://www.hivemq.com/) 是一个提供免费个人版和企业版的 MQTT 代理，主要用于企业和新兴的机器到机器 M2M 通讯和内部传输，满足可伸缩性、易管理和安全特性。HiveMQ 提供了开源的插件开发包。可以通过 HiveMQ extension - TDengine 保存数据到 TDengine。详细使用方法请参考 [HiveMQ extension - TDengine 说明文档](https://github.com/huskar-t/hivemq-tdengine-extension/blob/b62a26ecc164a310104df57691691b237e091c89/README.md)。
--- a/docs-cn/21-tdinternal/01-arch.md
+++ b/docs-cn/21-tdinternal/01-arch.md
--- a/docs-cn/25-application/03-immigrate.md
+++ b/docs-cn/25-application/03-immigrate.md
--- a/docs-cn/27-train-faq/01-faq.md
+++ b/docs-cn/27-train-faq/01-faq.md
--- a/docs-cn/27-train-faq/03-docker.md
+++ b/docs-cn/27-train-faq/03-docker.md
--- a/docs-en/02-intro/index.md
+++ b/docs-en/02-intro/index.md
--- a/docs-en/05-get-started/index.md
+++ b/docs-en/05-get-started/index.md
--- a/docs-en/07-develop/01-connect/_connect_c.mdx
+++ b/docs-en/07-develop/01-connect/_connect_c.mdx
--- a/docs-en/07-develop/01-connect/_connect_cs.mdx
+++ b/docs-en/07-develop/01-connect/_connect_cs.mdx
--- a/docs-en/07-develop/01-connect/_connect_go.mdx
+++ b/docs-en/07-develop/01-connect/_connect_go.mdx
--- a/docs-en/07-develop/01-connect/_connect_java.mdx
+++ b/docs-en/07-develop/01-connect/_connect_java.mdx
--- a/docs-en/07-develop/01-connect/_connect_node.mdx
+++ b/docs-en/07-develop/01-connect/_connect_node.mdx
--- a/docs-en/07-develop/01-connect/_connect_python.mdx
+++ b/docs-en/07-develop/01-connect/_connect_python.mdx
--- a/docs-en/07-develop/01-connect/_connect_r.mdx
+++ b/docs-en/07-develop/01-connect/_connect_r.mdx
--- a/docs-en/07-develop/01-connect/_connect_rust.mdx
+++ b/docs-en/07-develop/01-connect/_connect_rust.mdx
--- a/docs-en/07-develop/01-connect/index.md
+++ b/docs-en/07-develop/01-connect/index.md
--- a/docs-en/07-develop/02-model/index.mdx
+++ b/docs-en/07-develop/02-model/index.mdx
--- a/docs-en/07-develop/03-insert-data/01-sql-writing.mdx
+++ b/docs-en/07-develop/03-insert-data/01-sql-writing.mdx
--- a/docs-en/07-develop/03-insert-data/_c_line.mdx
+++ b/docs-en/07-develop/03-insert-data/_c_line.mdx
--- a/docs-en/07-develop/03-insert-data/_c_opts_json.mdx
+++ b/docs-en/07-develop/03-insert-data/_c_opts_json.mdx
--- a/docs-en/07-develop/03-insert-data/_c_opts_telnet.mdx
+++ b/docs-en/07-develop/03-insert-data/_c_opts_telnet.mdx
--- a/docs-en/07-develop/03-insert-data/_c_sql.mdx
+++ b/docs-en/07-develop/03-insert-data/_c_sql.mdx
--- a/docs-en/07-develop/03-insert-data/_c_stmt.mdx
+++ b/docs-en/07-develop/03-insert-data/_c_stmt.mdx
--- a/docs-en/07-develop/03-insert-data/_cs_line.mdx
+++ b/docs-en/07-develop/03-insert-data/_cs_line.mdx
--- a/docs-en/07-develop/03-insert-data/_cs_opts_json.mdx
+++ b/docs-en/07-develop/03-insert-data/_cs_opts_json.mdx
--- a/docs-en/07-develop/03-insert-data/_cs_opts_telnet.mdx
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