diff --git a/Jenkinsfile b/Jenkinsfile
index 6dc55be4bd0e8a0c4c5cddfb0a265898d9211c3a..99e70407b11298945a881b2243b27f941da5ec63 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,18 +1,36 @@
-
+import hudson.model.Result
+import jenkins.model.CauseOfInterruption
 properties([pipelineTriggers([githubPush()])])
 node {
-    git url: 'https://github.com/taosdata/TDengine'
+    git url: 'https://github.com/taosdata/TDengine.git'
 }
 
 
-// execute this before anything else, including requesting any time on an agent
-if (currentBuild.rawBuild.getCauses().toString().contains('BranchIndexingCause')) {
-  print "INFO: Build skipped due to trigger being Branch Indexing"
-  currentBuild.result = 'ABORTED' // optional, gives a better hint to the user that it's been skipped, rather than the default which shows it's successful
-  return
-}
+def abortPreviousBuilds() {
+  def currentJobName = env.JOB_NAME
+  def currentBuildNumber = env.BUILD_NUMBER.toInteger()
+  def jobs = Jenkins.instance.getItemByFullName(currentJobName)
+  def builds = jobs.getBuilds()
+
+  for (build in builds) {
+    if (!build.isBuilding()) {
+      continue;
+    }
 
+    if (currentBuildNumber == build.getNumber().toInteger()) {
+      continue;
+    }
 
+    build.doKill()    //doTerm(),doKill(),doTerm()
+  }
+}
+//abort previous build
+abortPreviousBuilds()
+def abort_previous(){
+  def buildNumber = env.BUILD_NUMBER as int
+  if (buildNumber > 1) milestone(buildNumber - 1)
+  milestone(buildNumber)
+}
 def pre_test(){
     catchError(buildResult: 'SUCCESS', stageResult: 'FAILURE') {
                 sh '''
@@ -20,6 +38,7 @@ def pre_test(){
                 '''
     }
     sh '''
+    
     cd ${WKC}
     rm -rf *
     cd ${WK}
@@ -44,27 +63,35 @@ def pre_test(){
 }
 pipeline {
   agent none
+  
   environment{
       WK = '/var/lib/jenkins/workspace/TDinternal'
       WKC= '/var/lib/jenkins/workspace/TDinternal/community'
   }
-
+  
   stages {
+      
+    
       stage('Parallel test stage') {
+        //only build pr
+        when {
+              changeRequest()
+          }
       parallel {
-        stage('python p1') {
-          agent{label 'p1'}
+        stage('python') {
+          agent{label 'pytest'}
           steps {
+            
             pre_test()
             sh '''
             cd ${WKC}/tests
-            ./test-all.sh p1
+            ./test-all.sh pytest
             date'''
           }
         }
         stage('test_b1') {
           agent{label 'b1'}
-          steps {
+          steps {            
             pre_test()
             sh '''
             cd ${WKC}/tests
@@ -117,24 +144,10 @@ pipeline {
             date'''
           }
         }
-       stage('python p2'){
-         agent{label "p2"}
-         steps{
-            pre_test()         
-            sh '''
-            date
-            cd ${WKC}/tests
-            ./test-all.sh p2
-            date
-            '''
-          
-         }
-       }
-       
-          
-      }
+   
+        
     }
-
   }
-  
+  }
+   
 }
diff --git a/packaging/tools/install.sh b/packaging/tools/install.sh
index d6dccf7045a02a3019d95d73685a3ca27bc5205f..6f481a6d6c425393ccd05019c8cbcf0614392e4a 100755
--- a/packaging/tools/install.sh
+++ b/packaging/tools/install.sh
@@ -9,6 +9,9 @@ set -e
 verMode=edge
 pagMode=full
 
+iplist=""
+serverFqdn=""
+
 # -----------------------Variables definition---------------------
 script_dir=$(dirname $(readlink -f "$0"))
 # Dynamic directory
@@ -227,6 +230,157 @@ function install_header() {
     ${csudo} ln -s ${install_main_dir}/include/taoserror.h ${inc_link_dir}/taoserror.h
 }
 
+function add_newHostname_to_hosts() {
+  localIp="127.0.0.1"
+  OLD_IFS="$IFS"
+  IFS=" "
+  iphost=$(cat /etc/hosts | grep $1 | awk '{print $1}')
+  arr=($iphost)
+  IFS="$OLD_IFS"
+  for s in ${arr[@]}
+  do
+    if [[ "$s" == "$localIp" ]]; then
+      return
+    fi
+  done 
+  ${csudo} echo "127.0.0.1  $1" >> /etc/hosts   ||:
+}
+
+function set_hostname() {
+  echo -e -n "${GREEN}Please enter one hostname(must not be 'localhost')${NC}:"
+	read newHostname
+  while true; do
+    if [[ ! -z "$newHostname" && "$newHostname" != "localhost" ]]; then
+      break
+    else
+      read -p "Please enter one hostname(must not be 'localhost'):" newHostname
+    fi
+  done
+
+  ${csudo} hostname $newHostname ||:
+  retval=`echo $?`
+  if [[ $retval != 0 ]]; then
+   echo
+   echo "set hostname fail!"
+   return 
+  fi
+  #echo -e -n "$(hostnamectl status --static)"
+  #echo -e -n "$(hostnamectl status --transient)"
+  #echo -e -n "$(hostnamectl status --pretty)"
+  
+  #ubuntu/centos /etc/hostname
+  if [[ -e /etc/hostname ]]; then
+    ${csudo} echo $newHostname > /etc/hostname   ||:
+  fi
+  
+  #debian: #HOSTNAME=yourname
+  if [[ -e /etc/sysconfig/network ]]; then
+    ${csudo} sed -i -r "s/#*\s*(HOSTNAME=\s*).*/\1$newHostname/" /etc/sysconfig/network   ||:
+  fi
+
+  ${csudo} sed -i -r "s/#*\s*(fqdn\s*).*/\1$newHostname/" ${cfg_install_dir}/taos.cfg
+  serverFqdn=$newHostname  
+  
+  if [[ -e /etc/hosts ]]; then
+    add_newHostname_to_hosts $newHostname
+  fi
+}
+
+function is_correct_ipaddr() {
+  newIp=$1
+  OLD_IFS="$IFS"
+  IFS=" "
+  arr=($iplist)
+  IFS="$OLD_IFS"
+  for s in ${arr[@]}
+  do
+   if [[ "$s" == "$newIp" ]]; then
+     return 0
+   fi
+  done
+  
+  return 1
+}
+
+function set_ipAsFqdn() {
+  iplist=$(ip address |grep inet |grep -v inet6 |grep -v 127.0.0.1 |awk '{print $2}' |awk -F "/" '{print $1}') ||:
+  if [ -z "$iplist" ]; then
+    iplist=$(ifconfig |grep inet |grep -v inet6 |grep -v 127.0.0.1 |awk '{print $2}' |awk -F ":" '{print $2}') ||:
+  fi
+
+  if [ -z "$iplist" ]; then
+    echo
+    echo -e -n "${GREEN}Unable to get local ip, use 127.0.0.1${NC}"
+    localFqdn="127.0.0.1"
+    # Write the local FQDN to configuration file                    
+    ${csudo} sed -i -r "s/#*\s*(fqdn\s*).*/\1$localFqdn/" ${cfg_install_dir}/taos.cfg    
+    serverFqdn=$localFqdn
+    echo
+    return
+  fi  
+  
+  echo -e -n "${GREEN}Please choose an IP from local IP list${NC}:"
+  echo
+  echo -e -n "${GREEN}$iplist${NC}"
+  echo
+  echo
+  echo -e -n "${GREEN}Notes: if IP is used as the node name, data can NOT be migrated to other machine directly${NC}:"
+  read localFqdn
+    while true; do
+      if [ ! -z "$localFqdn" ]; then            
+        # Check if correct ip address
+        is_correct_ipaddr $localFqdn
+        retval=`echo $?`
+        if [[ $retval != 0 ]]; then
+          read -p "Please choose an IP from local IP list:" localFqdn
+        else
+          # Write the local FQDN to configuration file                    
+          ${csudo} sed -i -r "s/#*\s*(fqdn\s*).*/\1$localFqdn/" ${cfg_install_dir}/taos.cfg    
+          serverFqdn=$localFqdn
+          break
+        fi
+      else
+        read -p "Please choose an IP from local IP list:" localFqdn
+      fi
+    done
+}
+
+function local_fqdn_check() {
+  #serverFqdn=$(hostname -f)
+  echo
+  echo -e -n "System hostname is: ${GREEN}$serverFqdn${NC}"
+  echo
+  if [[ "$serverFqdn" == "" ]] || [[ "$serverFqdn" == "localhost"  ]]; then    
+    echo -e -n "${GREEN}It is strongly recommended to configure a hostname for this machine ${NC}"
+    echo
+    
+    while true
+    do
+	    read -r -p "Set hostname now? [Y/n] " input
+	    if [ ! -n "$input" ]; then
+       set_hostname
+       break
+      else
+	      case $input in
+	        [yY][eE][sS]|[yY])
+          set_hostname
+          break
+			    ;;
+        
+	        [nN][oO]|[nN])
+			    set_ipAsFqdn
+			    break   	
+			    ;;
+        
+	        *)
+			    echo "Invalid input..."
+			    ;;
+	      esac
+	    fi
+    done
+  fi
+}
+
 function install_config() {
     #${csudo} rm -f ${install_main_dir}/cfg/taos.cfg     || :
     
@@ -247,7 +401,9 @@ function install_config() {
     
     if [ "$interactiveFqdn" == "no" ]; then
         return 0
-    fi
+    fi   	
+    
+    local_fqdn_check
 
     #FQDN_FORMAT="(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)"
     #FQDN_FORMAT="(:[1-6][0-9][0-9][0-9][0-9]$)"
@@ -446,6 +602,9 @@ function install_service_on_systemd() {
     ${csudo} bash -c "echo '[Service]'                          >> ${taosd_service_config}"
     ${csudo} bash -c "echo 'Type=simple'                        >> ${taosd_service_config}"
     ${csudo} bash -c "echo 'ExecStart=/usr/bin/taosd'           >> ${taosd_service_config}"
+    #${csudo} bash -c "echo 'ExecStartPre=/usr/local/taos/bin/setDelay.sh'     >> ${taosd_service_config}"
+    #${csudo} bash -c "echo 'ExecStartPost=/usr/local/taos/bin/resetDelay.sh'  >> ${taosd_service_config}"
+    #${csudo} bash -c "echo 'ExecStopPost=/usr/local/taos/bin/resetDelay.sh'   >> ${taosd_service_config}"
     ${csudo} bash -c "echo 'LimitNOFILE=infinity'               >> ${taosd_service_config}"
     ${csudo} bash -c "echo 'LimitNPROC=infinity'                >> ${taosd_service_config}"
     ${csudo} bash -c "echo 'LimitCORE=infinity'                 >> ${taosd_service_config}"
@@ -454,6 +613,7 @@ function install_service_on_systemd() {
     ${csudo} bash -c "echo 'Restart=always'                     >> ${taosd_service_config}"
     ${csudo} bash -c "echo 'StartLimitBurst=3'                  >> ${taosd_service_config}"
     ${csudo} bash -c "echo 'StartLimitInterval=60s'             >> ${taosd_service_config}"
+    #${csudo} bash -c "echo 'StartLimitIntervalSec=60s'          >> ${taosd_service_config}"
     ${csudo} bash -c "echo                                      >> ${taosd_service_config}"
     ${csudo} bash -c "echo '[Install]'                          >> ${taosd_service_config}"
     ${csudo} bash -c "echo 'WantedBy=multi-user.target'         >> ${taosd_service_config}"
@@ -634,9 +794,9 @@ function update_TDengine() {
         fi
 
         if [ ${openresty_work} = 'true' ]; then
-            echo -e "${GREEN_DARK}To access TDengine    ${NC}: use ${GREEN_UNDERLINE}taos${NC} in shell OR from ${GREEN_UNDERLINE}http://127.0.0.1:${nginx_port}${NC}"
+            echo -e "${GREEN_DARK}To access TDengine    ${NC}: use ${GREEN_UNDERLINE}taos -h $serverFqdn${NC} in shell OR from ${GREEN_UNDERLINE}http://127.0.0.1:${nginx_port}${NC}"
         else
-            echo -e "${GREEN_DARK}To access TDengine    ${NC}: use ${GREEN_UNDERLINE}taos${NC} in shell${NC}"
+            echo -e "${GREEN_DARK}To access TDengine    ${NC}: use ${GREEN_UNDERLINE}taos -h $serverFqdn${NC} in shell${NC}"
         fi
                 
         echo
@@ -655,8 +815,8 @@ function update_TDengine() {
 function install_TDengine() {
     # Start to install
     if [ ! -e taos.tar.gz ]; then
-        echo "File taos.tar.gz does not exist"
-        exit 1
+      echo "File taos.tar.gz does not exist"
+      exit 1
     fi
     tar -zxf taos.tar.gz
 
@@ -702,41 +862,54 @@ function install_TDengine() {
         echo
         echo -e "${GREEN_DARK}To configure TDengine ${NC}: edit /etc/taos/taos.cfg"
         if ((${service_mod}==0)); then
-            echo -e "${GREEN_DARK}To start TDengine     ${NC}: ${csudo} systemctl start taosd${NC}"
+          echo -e "${GREEN_DARK}To start TDengine     ${NC}: ${csudo} systemctl start taosd${NC}"
         elif ((${service_mod}==1)); then
-            echo -e "${GREEN_DARK}To start TDengine     ${NC}: ${csudo} service taosd start${NC}"
+          echo -e "${GREEN_DARK}To start TDengine     ${NC}: ${csudo} service taosd start${NC}"
         else
-            echo -e "${GREEN_DARK}To start TDengine     ${NC}: taosd${NC}"
+          echo -e "${GREEN_DARK}To start TDengine     ${NC}: taosd${NC}"
         fi		
 
-        if [ ${openresty_work} = 'true' ]; then
-             echo -e "${GREEN_DARK}To access TDengine    ${NC}: use ${GREEN_UNDERLINE}taos${NC} in shell OR from ${GREEN_UNDERLINE}http://127.0.0.1:${nginx_port}${NC}"
-        else
-             echo -e "${GREEN_DARK}To access TDengine    ${NC}: use ${GREEN_UNDERLINE}taos${NC} in shell${NC}"
-        fi
+        #if [ ${openresty_work} = 'true' ]; then
+        #     echo -e "${GREEN_DARK}To access TDengine    ${NC}: use ${GREEN_UNDERLINE}taos${NC} in shell OR from ${GREEN_UNDERLINE}http://127.0.0.1:${nginx_port}${NC}"
+        #else
+        #     echo -e "${GREEN_DARK}To access TDengine    ${NC}: use ${GREEN_UNDERLINE}taos${NC} in shell${NC}"
+        #fi
 		
         if [ ! -z "$firstEp" ]; then
-	    echo		    
-	    echo -e "${GREEN_DARK}Please run${NC}: taos -h $firstEp${GREEN_DARK} to login into cluster, then${NC}"
-	    echo -e "${GREEN_DARK}execute ${NC}: create dnode 'newDnodeFQDN:port'; ${GREEN_DARK}to add this new node${NC}"
-            echo
+          tmpFqdn=${firstEp%%:*}
+          substr=":"
+          if [[ $firstEp =~ $substr ]];then
+            tmpPort=${firstEp#*:}
+          else
+            tmpPort=""
+          fi
+          if [[ "$tmpPort" != "" ]];then
+	          echo -e "${GREEN_DARK}To access TDengine    ${NC}: taos -h $tmpFqdn -P $tmpPort${GREEN_DARK} to login into cluster, then${NC}"
+	        else
+	          echo -e "${GREEN_DARK}To access TDengine    ${NC}: taos -h $tmpFqdn${GREEN_DARK} to login into cluster, then${NC}"
+	        fi
+	        echo -e "${GREEN_DARK}execute ${NC}: create dnode 'newDnodeFQDN:port'; ${GREEN_DARK}to add this new node${NC}"
+          echo
+        elif [ ! -z "$serverFqdn" ]; then
+	        echo -e "${GREEN_DARK}To access TDengine    ${NC}: taos -h $serverFqdn${GREEN_DARK} to login into TDengine server${NC}"
+          echo
         fi
+        
         echo -e "\033[44;32;1mTDengine is installed successfully!${NC}"
         echo       
     else # Only install client
         install_bin
         install_config
-
         echo
         echo -e "\033[44;32;1mTDengine client is installed successfully!${NC}"
     fi
     touch ~/.taos_history
-
     rm -rf $(tar -tf taos.tar.gz)
 }
 
 
 ## ==============================Main program starts from here============================
+serverFqdn=$(hostname -f)
 if [ "$verType" == "server" ]; then
     # Install server and client
     if [ -x ${bin_dir}/taosd ]; then
diff --git a/packaging/tools/install_power.sh b/packaging/tools/install_power.sh
index 5929b52afca59f5e4364aa294fe7cefec5f6b828..1e3cb81b7d263149767d50a4a8f76b64736e7595 100755
--- a/packaging/tools/install_power.sh
+++ b/packaging/tools/install_power.sh
@@ -9,6 +9,8 @@ set -e
 verMode=edge
 pagMode=full
 
+iplist=""
+serverFqdn=""
 # -----------------------Variables definition---------------------
 script_dir=$(dirname $(readlink -f "$0"))
 # Dynamic directory
@@ -172,7 +174,6 @@ function install_bin() {
     ${csudo} rm -f ${bin_link_dir}/power     || :
     ${csudo} rm -f ${bin_link_dir}/powerd    || :
     ${csudo} rm -f ${bin_link_dir}/powerdemo || :
-    ${csudo} rm -f ${bin_link_dir}/powerdump || :
     ${csudo} rm -f ${bin_link_dir}/rmpower   || :
     ${csudo} rm -f ${bin_link_dir}/tarbitrator   || :
     ${csudo} rm -f ${bin_link_dir}/set_core   || :
@@ -183,7 +184,6 @@ function install_bin() {
     [ -x ${install_main_dir}/bin/power ] && ${csudo} ln -s ${install_main_dir}/bin/power ${bin_link_dir}/power                        || :
     [ -x ${install_main_dir}/bin/powerd ] && ${csudo} ln -s ${install_main_dir}/bin/powerd ${bin_link_dir}/powerd                     || :
     [ -x ${install_main_dir}/bin/powerdemo ] && ${csudo} ln -s ${install_main_dir}/bin/powerdemo ${bin_link_dir}/powerdemo            || :
-    [ -x ${install_main_dir}/bin/powerdump ] && ${csudo} ln -s ${install_main_dir}/bin/powerdump ${bin_link_dir}/powerdump            || :
     [ -x ${install_main_dir}/bin/remove_power.sh ] && ${csudo} ln -s ${install_main_dir}/bin/remove_power.sh ${bin_link_dir}/rmpower  || :
     [ -x ${install_main_dir}/bin/set_core.sh ] && ${csudo} ln -s ${install_main_dir}/bin/set_core.sh ${bin_link_dir}/set_core         || :
     [ -x ${install_main_dir}/bin/tarbitrator ] && ${csudo} ln -s ${install_main_dir}/bin/tarbitrator ${bin_link_dir}/tarbitrator      || :
@@ -227,6 +227,157 @@ function install_header() {
     ${csudo} ln -s ${install_main_dir}/include/taoserror.h ${inc_link_dir}/taoserror.h
 }
 
+function add_newHostname_to_hosts() {
+  localIp="127.0.0.1"
+  OLD_IFS="$IFS"
+  IFS=" "
+  iphost=$(cat /etc/hosts | grep $1 | awk '{print $1}')
+  arr=($iphost)
+  IFS="$OLD_IFS"
+  for s in ${arr[@]}
+  do
+    if [[ "$s" == "$localIp" ]]; then
+      return
+    fi
+  done 
+  ${csudo} echo "127.0.0.1  $1" >> /etc/hosts   ||:
+}
+
+function set_hostname() {
+  echo -e -n "${GREEN}Please enter one hostname(must not be 'localhost')${NC}:"
+	read newHostname
+  while true; do
+    if [[ ! -z "$newHostname" && "$newHostname" != "localhost" ]]; then
+      break
+    else
+      read -p "Please enter one hostname(must not be 'localhost'):" newHostname
+    fi
+  done
+
+  ${csudo} hostname $newHostname ||:
+  retval=`echo $?`
+  if [[ $retval != 0 ]]; then
+   echo
+   echo "set hostname fail!"
+   return 
+  fi
+  #echo -e -n "$(hostnamectl status --static)"
+  #echo -e -n "$(hostnamectl status --transient)"
+  #echo -e -n "$(hostnamectl status --pretty)"
+  
+  #ubuntu/centos /etc/hostname
+  if [[ -e /etc/hostname ]]; then
+    ${csudo} echo $newHostname > /etc/hostname   ||:
+  fi
+  
+  #debian: #HOSTNAME=yourname
+  if [[ -e /etc/sysconfig/network ]]; then
+    ${csudo} sed -i -r "s/#*\s*(HOSTNAME=\s*).*/\1$newHostname/" /etc/sysconfig/network   ||:
+  fi
+
+  ${csudo} sed -i -r "s/#*\s*(fqdn\s*).*/\1$newHostname/" ${cfg_install_dir}/taos.cfg
+  serverFqdn=$newHostname  
+  
+  if [[ -e /etc/hosts ]]; then
+    add_newHostname_to_hosts $newHostname
+  fi
+}
+
+function is_correct_ipaddr() {
+  newIp=$1
+  OLD_IFS="$IFS"
+  IFS=" "
+  arr=($iplist)
+  IFS="$OLD_IFS"
+  for s in ${arr[@]}
+  do
+   if [[ "$s" == "$newIp" ]]; then
+     return 0
+   fi
+  done
+  
+  return 1
+}
+
+function set_ipAsFqdn() {
+  iplist=$(ip address |grep inet |grep -v inet6 |grep -v 127.0.0.1 |awk '{print $2}' |awk -F "/" '{print $1}') ||:
+  if [ -z "$iplist" ]; then
+    iplist=$(ifconfig |grep inet |grep -v inet6 |grep -v 127.0.0.1 |awk '{print $2}' |awk -F ":" '{print $2}') ||:
+  fi
+
+  if [ -z "$iplist" ]; then
+    echo
+    echo -e -n "${GREEN}Unable to get local ip, use 127.0.0.1${NC}"
+    localFqdn="127.0.0.1"
+    # Write the local FQDN to configuration file                    
+    ${csudo} sed -i -r "s/#*\s*(fqdn\s*).*/\1$localFqdn/" ${cfg_install_dir}/taos.cfg    
+    serverFqdn=$localFqdn
+    echo
+    return
+  fi  
+  
+  echo -e -n "${GREEN}Please choose an IP from local IP list${NC}:"
+  echo
+  echo -e -n "${GREEN}$iplist${NC}"
+  echo
+  echo
+  echo -e -n "${GREEN}Notes: if IP is used as the node name, data can NOT be migrated to other machine directly${NC}:"
+  read localFqdn
+    while true; do
+      if [ ! -z "$localFqdn" ]; then            
+        # Check if correct ip address
+        is_correct_ipaddr $localFqdn
+        retval=`echo $?`
+        if [[ $retval != 0 ]]; then
+          read -p "Please choose an IP from local IP list:" localFqdn
+        else
+          # Write the local FQDN to configuration file                    
+          ${csudo} sed -i -r "s/#*\s*(fqdn\s*).*/\1$localFqdn/" ${cfg_install_dir}/taos.cfg    
+          serverFqdn=$localFqdn
+          break
+        fi
+      else
+        read -p "Please choose an IP from local IP list:" localFqdn
+      fi
+    done
+}
+
+function local_fqdn_check() {
+  #serverFqdn=$(hostname -f)
+  echo
+  echo -e -n "System hostname is: ${GREEN}$serverFqdn${NC}"
+  echo
+  if [[ "$serverFqdn" == "" ]] || [[ "$serverFqdn" == "localhost"  ]]; then    
+    echo -e -n "${GREEN}It is strongly recommended to configure a hostname for this machine ${NC}"
+    echo
+    
+    while true
+    do
+	    read -r -p "Set hostname now? [Y/n] " input
+	    if [ ! -n "$input" ]; then
+       set_hostname
+       break
+      else
+	      case $input in
+	        [yY][eE][sS]|[yY])
+          set_hostname
+          break
+			    ;;
+        
+	        [nN][oO]|[nN])
+			    set_ipAsFqdn
+			    break   	
+			    ;;
+        
+	        *)
+			    echo "Invalid input..."
+			    ;;
+	      esac
+	    fi
+    done
+  fi
+}
+
 function install_config() {
     #${csudo} rm -f ${install_main_dir}/cfg/taos.cfg     || :
     
@@ -248,6 +399,8 @@ function install_config() {
     if [ "$interactiveFqdn" == "no" ]; then
         return 0
     fi
+    
+    local_fqdn_check
 
     #FQDN_FORMAT="(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)"
     #FQDN_FORMAT="(:[1-6][0-9][0-9][0-9][0-9]$)"
@@ -611,9 +764,9 @@ function update_PowerDB() {
         fi
 
         if [ ${openresty_work} = 'true' ]; then
-            echo -e "${GREEN_DARK}To access PowerDB    ${NC}: use ${GREEN_UNDERLINE}power${NC} in shell OR from ${GREEN_UNDERLINE}http://127.0.0.1:${nginx_port}${NC}"
+            echo -e "${GREEN_DARK}To access PowerDB    ${NC}: use ${GREEN_UNDERLINE}power -h $serverFqdn${NC} in shell OR from ${GREEN_UNDERLINE}http://127.0.0.1:${nginx_port}${NC}"
         else
-            echo -e "${GREEN_DARK}To access PowerDB    ${NC}: use ${GREEN_UNDERLINE}power${NC} in shell${NC}"
+            echo -e "${GREEN_DARK}To access PowerDB    ${NC}: use ${GREEN_UNDERLINE}power -h $serverFqdn${NC} in shell${NC}"
         fi
                 
         echo
@@ -686,17 +839,30 @@ function install_PowerDB() {
             echo -e "${GREEN_DARK}To start PowerDB     ${NC}: powerd${NC}"
         fi		
 
-        if [ ${openresty_work} = 'true' ]; then
-             echo -e "${GREEN_DARK}To access PowerDB    ${NC}: use ${GREEN_UNDERLINE}power${NC} in shell OR from ${GREEN_UNDERLINE}http://127.0.0.1:${nginx_port}${NC}"
-        else
-             echo -e "${GREEN_DARK}To access PowerDB    ${NC}: use ${GREEN_UNDERLINE}power${NC} in shell${NC}"
-        fi
+        #if [ ${openresty_work} = 'true' ]; then
+        #     echo -e "${GREEN_DARK}To access PowerDB    ${NC}: use ${GREEN_UNDERLINE}power${NC} in shell OR from ${GREEN_UNDERLINE}http://127.0.0.1:${nginx_port}${NC}"
+        #else
+        #     echo -e "${GREEN_DARK}To access PowerDB    ${NC}: use ${GREEN_UNDERLINE}power${NC} in shell${NC}"
+        #fi
 		
         if [ ! -z "$firstEp" ]; then
-	        echo		    
-	        echo -e "${GREEN_DARK}Please run${NC}: power -h $firstEp${GREEN_DARK} to login into cluster, then${NC}"
+          tmpFqdn=${firstEp%%:*}
+          substr=":"
+          if [[ $firstEp =~ $substr ]];then
+            tmpPort=${firstEp#*:}
+          else
+            tmpPort=""
+          fi
+          if [[ "$tmpPort" != "" ]];then
+	          echo -e "${GREEN_DARK}To access PowerDB    ${NC}: power -h $tmpFqdn -P $tmpPort${GREEN_DARK} to login into cluster, then${NC}"
+	        else
+	          echo -e "${GREEN_DARK}To access PowerDB    ${NC}: power -h $tmpFqdn${GREEN_DARK} to login into cluster, then${NC}"
+	        fi
 	        echo -e "${GREEN_DARK}execute ${NC}: create dnode 'newDnodeFQDN:port'; ${GREEN_DARK}to add this new node${NC}"
           echo
+        elif [ ! -z "$serverFqdn" ]; then
+	        echo -e "${GREEN_DARK}To access PowerDB    ${NC}: power -h $serverFqdn${GREEN_DARK} to login into PowerDB server${NC}"
+          echo
         fi
         echo -e "\033[44;32;1mPowerDB is installed successfully!${NC}"
         echo       
@@ -713,6 +879,7 @@ function install_PowerDB() {
 
 
 ## ==============================Main program starts from here============================
+serverFqdn=$(hostname -f)
 if [ "$verType" == "server" ]; then
     # Install server and client
     if [ -x ${bin_dir}/powerd ]; then
diff --git a/packaging/tools/post.sh b/packaging/tools/post.sh
index 52919976ee8a1b8c3ab7c38d9dad4eb7e98b22bd..6b4d1837647ee78747e271ddcdf5fac95d490b10 100755
--- a/packaging/tools/post.sh
+++ b/packaging/tools/post.sh
@@ -3,6 +3,10 @@
 # This file is used to install tdengine rpm package on centos systems. The operating system 
 # is required to use systemd to manage services at boot
 #set -x
+
+iplist=""
+serverFqdn=""
+
 # -----------------------Variables definition---------------------
 script_dir=$(dirname $(readlink -f "$0"))
 # Dynamic directory
@@ -92,7 +96,6 @@ function install_bin() {
     ${csudo} rm -f ${bin_link_dir}/taos     || :
     ${csudo} rm -f ${bin_link_dir}/taosd    || :
     ${csudo} rm -f ${bin_link_dir}/taosdemo || :
-    ${csudo} rm -f ${bin_link_dir}/taosdump || :
     ${csudo} rm -f ${bin_link_dir}/rmtaos   || :
     ${csudo} rm -f ${bin_link_dir}/set_core || :
 
@@ -102,10 +105,160 @@ function install_bin() {
     [ -x ${bin_dir}/taos ] && ${csudo} ln -s ${bin_dir}/taos ${bin_link_dir}/taos             || :
     [ -x ${bin_dir}/taosd ] && ${csudo} ln -s ${bin_dir}/taosd ${bin_link_dir}/taosd          || :
     [ -x ${bin_dir}/taosdemo ] && ${csudo} ln -s ${bin_dir}/taosdemo ${bin_link_dir}/taosdemo || :
-    [ -x ${bin_dir}/taosdump ] && ${csudo} ln -s ${bin_dir}/taosdump ${bin_link_dir}/taosdump || :
     [ -x ${bin_dir}/set_core.sh ] && ${csudo} ln -s ${bin_dir}/set_core.sh ${bin_link_dir}/set_core || :
 }
 
+function add_newHostname_to_hosts() {
+  localIp="127.0.0.1"
+  OLD_IFS="$IFS"
+  IFS=" "
+  iphost=$(cat /etc/hosts | grep $1 | awk '{print $1}')
+  arr=($iphost)
+  IFS="$OLD_IFS"
+  for s in ${arr[@]}
+  do
+    if [[ "$s" == "$localIp" ]]; then
+      return
+    fi
+  done 
+  ${csudo} echo "127.0.0.1  $1" >> /etc/hosts   ||:
+}
+
+function set_hostname() {
+  echo -e -n "${GREEN}Please enter one hostname(must not be 'localhost')${NC}:"
+	read newHostname
+  while true; do
+    if [[ ! -z "$newHostname" && "$newHostname" != "localhost" ]]; then
+      break
+    else
+      read -p "Please enter one hostname(must not be 'localhost'):" newHostname
+    fi
+  done
+
+  ${csudo} hostname $newHostname ||:
+  retval=`echo $?`
+  if [[ $retval != 0 ]]; then
+   echo
+   echo "set hostname fail!"
+   return 
+  fi
+  #echo -e -n "$(hostnamectl status --static)"
+  #echo -e -n "$(hostnamectl status --transient)"
+  #echo -e -n "$(hostnamectl status --pretty)"
+  
+  #ubuntu/centos /etc/hostname
+  if [[ -e /etc/hostname ]]; then
+    ${csudo} echo $newHostname > /etc/hostname   ||:
+  fi
+  
+  #debian: #HOSTNAME=yourname
+  if [[ -e /etc/sysconfig/network ]]; then
+    ${csudo} sed -i -r "s/#*\s*(HOSTNAME=\s*).*/\1$newHostname/" /etc/sysconfig/network   ||:
+  fi
+
+  ${csudo} sed -i -r "s/#*\s*(fqdn\s*).*/\1$newHostname/" ${cfg_install_dir}/taos.cfg
+  serverFqdn=$newHostname  
+  
+  if [[ -e /etc/hosts ]]; then
+    add_newHostname_to_hosts $newHostname
+  fi
+}
+
+function is_correct_ipaddr() {
+  newIp=$1
+  OLD_IFS="$IFS"
+  IFS=" "
+  arr=($iplist)
+  IFS="$OLD_IFS"
+  for s in ${arr[@]}
+  do
+   if [[ "$s" == "$newIp" ]]; then
+     return 0
+   fi
+  done
+  
+  return 1
+}
+
+function set_ipAsFqdn() {
+  iplist=$(ip address |grep inet |grep -v inet6 |grep -v 127.0.0.1 |awk '{print $2}' |awk -F "/" '{print $1}') ||:
+  if [ -z "$iplist" ]; then
+    iplist=$(ifconfig |grep inet |grep -v inet6 |grep -v 127.0.0.1 |awk '{print $2}' |awk -F ":" '{print $2}') ||:
+  fi
+
+  if [ -z "$iplist" ]; then
+    echo
+    echo -e -n "${GREEN}Unable to get local ip, use 127.0.0.1${NC}"
+    localFqdn="127.0.0.1"
+    # Write the local FQDN to configuration file                    
+    ${csudo} sed -i -r "s/#*\s*(fqdn\s*).*/\1$localFqdn/" ${cfg_install_dir}/taos.cfg    
+    serverFqdn=$localFqdn
+    echo
+    return
+  fi  
+  
+  echo -e -n "${GREEN}Please choose an IP from local IP list${NC}:"
+  echo
+  echo -e -n "${GREEN}$iplist${NC}"
+  echo
+  echo
+  echo -e -n "${GREEN}Notes: if IP is used as the node name, data can NOT be migrated to other machine directly${NC}:"
+  read localFqdn
+    while true; do
+      if [ ! -z "$localFqdn" ]; then            
+        # Check if correct ip address
+        is_correct_ipaddr $localFqdn
+        retval=`echo $?`
+        if [[ $retval != 0 ]]; then
+          read -p "Please choose an IP from local IP list:" localFqdn
+        else
+          # Write the local FQDN to configuration file                    
+          ${csudo} sed -i -r "s/#*\s*(fqdn\s*).*/\1$localFqdn/" ${cfg_install_dir}/taos.cfg    
+          serverFqdn=$localFqdn
+          break
+        fi
+      else
+        read -p "Please choose an IP from local IP list:" localFqdn
+      fi
+    done
+}
+
+function local_fqdn_check() {
+  #serverFqdn=$(hostname -f)
+  echo
+  echo -e -n "System hostname is: ${GREEN}$serverFqdn${NC}"
+  echo
+  if [[ "$serverFqdn" == "" ]] || [[ "$serverFqdn" == "localhost"  ]]; then    
+    echo -e -n "${GREEN}It is strongly recommended to configure a hostname for this machine ${NC}"
+    echo
+    
+    while true
+    do
+	    read -r -p "Set hostname now? [Y/n] " input
+	    if [ ! -n "$input" ]; then
+       set_hostname
+       break
+      else
+	      case $input in
+	        [yY][eE][sS]|[yY])
+          set_hostname
+          break
+			    ;;
+        
+	        [nN][oO]|[nN])
+			    set_ipAsFqdn
+			    break   	
+			    ;;
+        
+	        *)
+			    echo "Invalid input..."
+			    ;;
+	      esac
+	    fi
+    done
+  fi
+}
+
 function install_config() {
     if [ ! -f ${cfg_install_dir}/taos.cfg ]; then
         ${csudo} ${csudo} mkdir -p ${cfg_install_dir}
@@ -113,6 +266,8 @@ function install_config() {
         ${csudo} chmod 644 ${cfg_install_dir}/*
     fi
 
+    local_fqdn_check
+
     ${csudo} mv ${cfg_dir}/taos.cfg ${cfg_dir}/taos.cfg.org
     ${csudo} ln -s ${cfg_install_dir}/taos.cfg ${cfg_dir}
     #FQDN_FORMAT="(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)"
@@ -130,19 +285,19 @@ function install_config() {
     	read firstEp;
 	fi
 	while true; do
-        if [ ! -z "$firstEp" ]; then
-            # check the format of the firstEp
-            #if [[ $firstEp == $FQDN_PATTERN ]]; then
-                # Write the first FQDN to configuration file                    
-                ${csudo} sed -i -r "s/#*\s*(firstEp\s*).*/\1$firstEp/" ${cfg_install_dir}/taos.cfg    
-                break
-            #else
-            #    read -p "Please enter the correct FQDN:port: " firstEp
-            #fi
-        else
+    if [ ! -z "$firstEp" ]; then
+        # check the format of the firstEp
+        #if [[ $firstEp == $FQDN_PATTERN ]]; then
+            # Write the first FQDN to configuration file                    
+            ${csudo} sed -i -r "s/#*\s*(firstEp\s*).*/\1$firstEp/" ${cfg_install_dir}/taos.cfg    
             break
-        fi
-    done		
+        #else
+        #    read -p "Please enter the correct FQDN:port: " firstEp
+        #fi
+    else
+        break
+    fi
+  done		
 
     # user email 
     #EMAIL_PATTERN='^[A-Za-z0-9\u4e00-\u9fa5]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$'
@@ -300,18 +455,32 @@ function install_TDengine() {
         echo -e "${GREEN_DARK}To start TDengine     ${NC}: ./taosd${NC}"
     fi
 
-    echo -e "${GREEN_DARK}To access TDengine    ${NC}: use ${GREEN_UNDERLINE}taos${NC} in shell${NC}"
-    
+
+		
     if [ ! -z "$firstEp" ]; then
-        echo		    
-	echo -e "${GREEN_DARK}Please run${NC}: taos -h $firstEp${GREEN_DARK} to login into cluster, then${NC}"
-	echo -e "${GREEN_DARK}execute ${NC}: create dnode 'newDnodeFQDN:port'; ${GREEN_DARK}to add this new node${NC}"
-        echo
-    fi
+      tmpFqdn=${firstEp%%:*}
+      substr=":"
+      if [[ $firstEp =~ $substr ]];then
+        tmpPort=${firstEp#*:}
+      else
+        tmpPort=""
+      fi
+      if [[ "$tmpPort" != "" ]];then
+	      echo -e "${GREEN_DARK}To access TDengine    ${NC}: taos -h $tmpFqdn -P $tmpPort${GREEN_DARK} to login into cluster, then${NC}"
+	    else
+	      echo -e "${GREEN_DARK}To access TDengine    ${NC}: taos -h $tmpFqdn${GREEN_DARK} to login into cluster, then${NC}"
+	    fi
+	    echo -e "${GREEN_DARK}execute ${NC}: create dnode 'newDnodeFQDN:port'; ${GREEN_DARK}to add this new node${NC}"
+      echo
+    elif [ ! -z "$serverFqdn" ]; then
+	    echo -e "${GREEN_DARK}To access TDengine    ${NC}: taos -h $serverFqdn${GREEN_DARK} to login into TDengine server${NC}"
+      echo
+    fi    
     echo
     echo -e "\033[44;32;1mTDengine is installed successfully!${NC}"
 }
 
 
 ## ==============================Main program starts from here============================
+serverFqdn=$(hostname -f)
 install_TDengine
diff --git a/src/kit/shell/src/shellLinux.c b/src/kit/shell/src/shellLinux.c
index 15b2b077c9cf96e4c8a430a1b4c32dabb8cc2913..9eb30ccdccc60d9b975236036b7f3aab0675b196 100644
--- a/src/kit/shell/src/shellLinux.c
+++ b/src/kit/shell/src/shellLinux.c
@@ -33,7 +33,7 @@ const char *argp_program_bug_address = "<support@taosdata.com>";
 static char doc[] = "";
 static char args_doc[] = "";
 static struct argp_option options[] = {
-  {"host",       'h', "HOST",       0,                   "TDengine server IP address to connect. The default host is localhost."},
+  {"host",       'h', "HOST",       0,                   "TDengine server FQDN to connect. The default host is localhost."},
   {"password",   'p', "PASSWORD",   OPTION_ARG_OPTIONAL, "The password to use when connecting to the server."},
   {"port",       'P', "PORT",       0,                   "The TCP/IP port number to use for the connection."},
   {"user",       'u', "USER",       0,                   "The user name to use when connecting to the server."},
diff --git a/src/kit/shell/src/shellWindows.c b/src/kit/shell/src/shellWindows.c
index 64eed9eace33034cc7182b47182f5f7798852859..7cb6c75302a0d2417469c5571c88fc382c6919ea 100644
--- a/src/kit/shell/src/shellWindows.c
+++ b/src/kit/shell/src/shellWindows.c
@@ -24,7 +24,7 @@ void printHelp() {
   printf("taos shell is used to test the TDengine database\n");
 
   printf("%s%s\n", indent, "-h");
-  printf("%s%s%s\n", indent, indent, "TDengine server IP address to connect. The default host is localhost.");
+  printf("%s%s%s\n", indent, indent, "TDengine server FQDN to connect. The default host is localhost.");
   printf("%s%s\n", indent, "-p");
   printf("%s%s%s\n", indent, indent, "The password to use when connecting to the server.");
   printf("%s%s\n", indent, "-P");
diff --git a/tests/pytest/fulltest.sh b/tests/pytest/fulltest.sh
index 2b364ee7cd2fcdc840c7490dae658952ede290a9..6d7f6f96baf85992d8973c59fa25daf6e776a0de 100755
--- a/tests/pytest/fulltest.sh
+++ b/tests/pytest/fulltest.sh
@@ -166,6 +166,7 @@ python3 ./test.py -f query/bug1875.py
 python3 ./test.py -f query/bug1876.py
 python3 ./test.py -f query/bug2218.py
 python3 ./test.py -f query/bug2117.py
+python3 ./test.py -f query/bug2118.py
 python3 ./test.py -f query/bug2143.py
 python3 ./test.py -f query/sliding.py
 python3 ./test.py -f query/unionAllTest.py
@@ -173,6 +174,7 @@ python3 ./test.py -f query/bug2281.py
 python3 ./test.py -f query/bug2119.py
 python3 ./test.py -f query/isNullTest.py
 python3 ./test.py -f query/queryWithTaosdKilled.py
+python3 ./test.py -f query/floatCompare.py
 
 #stream
 python3 ./test.py -f stream/metric_1.py
diff --git a/tests/pytest/handle_crash_gen_val_log.sh b/tests/pytest/handle_crash_gen_val_log.sh
index ce3d1c0c673e6e62fdd2e6ac83769eb3d7a8ca71..f00fe40c6981eda7630eb6d6c25fc3ff1ca4a4a2 100755
--- a/tests/pytest/handle_crash_gen_val_log.sh
+++ b/tests/pytest/handle_crash_gen_val_log.sh
@@ -6,7 +6,7 @@ GREEN_DARK='\033[0;32m'
 GREEN_UNDERLINE='\033[4;32m'
 NC='\033[0m'
 nohup /var/lib/jenkins/workspace/TDinternal/debug/build/bin/taosd -c /var/lib/jenkins/workspace/TDinternal/community/sim/dnode1/cfg >/dev/null &
-./crash_gen.sh --valgrind -p -t 10 -s 100 -b 4
+./crash_gen.sh --valgrind -p -t 10 -s 250 -b 4
 pidof taosd|xargs kill  
 grep 'start to execute\|ERROR SUMMARY' valgrind.err|grep -v 'grep'|uniq|tee crash_gen_mem_err.log
 
diff --git a/tests/pytest/pytest_1.sh b/tests/pytest/pytest_1.sh
index 86d93703b45167bfa61295174933729fd8be01f8..05d6ec1cecdf59737f9bf5a8b2417b9adde0cc87 100755
--- a/tests/pytest/pytest_1.sh
+++ b/tests/pytest/pytest_1.sh
@@ -167,6 +167,8 @@ python3 ./test.py -f query/bug2218.py
 python3 ./test.py -f query/bug2281.py
 python3 ./test.py -f query/bug2119.py
 python3 bug2265.py
+python3 ./test.py -f query/floatCompare.py
+
 #stream
 python3 ./test.py -f stream/metric_1.py
 python3 ./test.py -f stream/new.py
diff --git a/tests/pytest/query/bug2118.py b/tests/pytest/query/bug2118.py
new file mode 100644
index 0000000000000000000000000000000000000000..803f442a1b201b8fcd508e39f5f02b0ab95812aa
--- /dev/null
+++ b/tests/pytest/query/bug2118.py
@@ -0,0 +1,52 @@
+###################################################################
+#           Copyright (c) 2016 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import sys
+from util.log import *
+from util.cases import *
+from util.sql import *
+from util.dnodes import *
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+
+    def run(self):
+        tdSql.prepare()
+        tdLog.info("==========step1")
+        tdLog.info("create table && insert data")
+        
+        tdSql.execute("create table mt0 (ts timestamp, c1 int, c2 float, c3 bigint, c4 smallint, c5 tinyint, c6 double, c7 bool,c8 binary(20),c9 nchar(20))")
+        insertRows = 1000
+        t0 = 1604298064000
+        tdLog.info("insert %d rows" % (insertRows))
+        for i in range(insertRows):
+            ret = tdSql.execute(
+                "insert into mt0 values (%d , %d,%d,%d,%d,%d,%d,%d,'%s','%s')" %
+                (t0+i,i%100,i/2.0,i%41,i%51,i%53,i*1.0,i%2,'taos'+str(i%43),'涛思'+str(i%41)))
+        tdLog.info("==========step2")
+        tdLog.info("test percentile with group by normal_col ")
+        tdSql.query('select percentile(c1,1),percentile(c2,1),percentile(c6,1) from mt0 group by c3 limit 3 offset 2')
+        
+        tdSql.checkData(0,0,2.48)
+        tdSql.checkData(0,0,2.48)
+        tdSql.checkData(0,2,11.84)
+        
+
+        
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
\ No newline at end of file
diff --git a/tests/pytest/query/floatCompare.py b/tests/pytest/query/floatCompare.py
new file mode 100644
index 0000000000000000000000000000000000000000..cdbddb893e8c0af19fc4aee1596172ade759583f
--- /dev/null
+++ b/tests/pytest/query/floatCompare.py
@@ -0,0 +1,172 @@
+###################################################################
+#           Copyright (c) 2016 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import sys
+import taos
+from util.log import *
+from util.cases import *
+from util.sql import *
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor())
+
+        self.ts = 1537146000000
+
+    def run(self):
+        tdSql.prepare()
+
+        print("==============step1")
+        tdSql.execute("create table st(ts timestamp, c1 float, c2 double) tags(t1 float, t2 double)")
+        tdSql.execute(
+            'CREATE TABLE if not exists t1 using st tags(1.023, 3.00412)')
+        tdSql.execute(
+            'CREATE TABLE if not exists t2 using st tags(2.005, 10.129001)')
+
+        print("==============step2")
+        for i in range(10):
+            tdSql.execute("insert into t1 values(%d, %s, %s) t2 values(%d, %s, %s)" % 
+                (self.ts + i, 1.0001 + i, 2.0001301 + i, self.ts + i, 1.0001 * i, 2.0001301 * i))
+        
+        tdSql.query("select count(*) from st")
+        tdSql.checkData(0, 0, 20)
+
+        tdSql.query("select count(*) from st where t1 > 1.023")
+        tdSql.checkData(0, 0, 10)
+
+        tdSql.query("select count(*) from st where t1 < 1.023")
+        tdSql.checkRows(0)
+
+        tdSql.query("select count(*) from st where t1 >= 1.023")
+        tdSql.checkData(0, 0, 20)
+
+        tdSql.query("select count(*) from st where t1 <= 1.023")
+        tdSql.checkData(0, 0, 10)
+
+        tdSql.query("select count(*) from st where t1 = 1.023")
+        tdSql.checkData(0, 0, 10)
+
+        tdSql.query("select count(*) from st where t1 <> 1.023")
+        tdSql.checkData(0, 0, 10)
+
+        tdSql.query("select count(*) from st where t1 != 1.023")
+        tdSql.checkData(0, 0, 10)
+
+        tdSql.query("select count(*) from st where t1 >= 1.023 and t1 <= 1.023")
+        tdSql.checkData(0, 0, 10)
+
+        tdSql.query("select count(*) from st where t1 > 1.023 and t1 <= 1.023")
+        tdSql.checkRows(0)
+
+        tdSql.query("select count(*) from st where t1 >= 1.023 and t1 < 1.023")
+        tdSql.checkRows(0)
+
+        tdSql.query("select count(*) from st where t2 > 3.00412")
+        tdSql.checkData(0, 0, 10)
+
+        tdSql.query("select count(*) from st where t2 < 3.00412")
+        tdSql.checkRows(0)
+
+        tdSql.query("select count(*) from st where t2 >= 3.00412")
+        tdSql.checkData(0, 0, 20)
+
+        tdSql.query("select count(*) from st where t2 <= 3.00412")
+        tdSql.checkData(0, 0, 10)
+
+        tdSql.query("select count(*) from st where t2 = 3.00412")
+        tdSql.checkData(0, 0, 10)
+
+        tdSql.query("select count(*) from st where t2 <> 3.00412")
+        tdSql.checkData(0, 0, 10)
+
+        tdSql.query("select count(*) from st where t2 != 3.00412")
+        tdSql.checkData(0, 0, 10)
+
+        tdSql.query("select count(*) from st where t2 >= 3.00412 and t2 <= 3.00412")
+        tdSql.checkData(0, 0, 10)
+
+        tdSql.query("select count(*) from st where t2 > 3.00412 and t2 <= 3.00412")
+        tdSql.checkRows(0)
+
+        tdSql.query("select count(*) from st where t2 >= 3.00412 and t2 < 3.00412")
+        tdSql.checkRows(0)
+
+        tdSql.query("select count(*) from t1 where c1 < 2.0001")
+        tdSql.checkData(0, 0, 1)
+
+        tdSql.query("select count(*) from t1 where c1 <= 2.0001")
+        tdSql.checkData(0, 0, 2)
+
+        tdSql.query("select count(*) from t1 where c1 = 2.0001")
+        tdSql.checkData(0, 0, 1)
+
+        tdSql.query("select count(*) from t1 where c1 > 2.0001")
+        tdSql.checkData(0, 0, 8)
+
+        tdSql.query("select count(*) from t1 where c1 >= 2.0001")
+        tdSql.checkData(0, 0, 9)
+
+        tdSql.query("select count(*) from t1 where c1 <> 2.0001")
+        tdSql.checkData(0, 0, 9)
+
+        tdSql.query("select count(*) from t1 where c1 != 2.0001")
+        tdSql.checkData(0, 0, 9)
+
+        tdSql.query("select count(*) from t1 where c1 >= 2.0001 and c1 <= 2.0001")
+        tdSql.checkData(0, 0, 1)
+
+        tdSql.query("select count(*) from t1 where c1 > 2.0001 and c1 <= 2.0001")
+        tdSql.checkRows(0)
+
+        tdSql.query("select count(*) from t1 where c1 >= 2.0001 and c1 < 2.0001")
+        tdSql.checkRows(0)
+
+        tdSql.query("select count(*) from t2 where c2 < 2.0001301")
+        tdSql.checkData(0, 0, 1)
+
+        tdSql.query("select count(*) from t2 where c2 <= 2.0001301")
+        tdSql.checkData(0, 0, 2)
+
+        tdSql.query("select count(*) from t2 where c2 = 2.0001301")
+        tdSql.checkData(0, 0, 1)
+
+        tdSql.query("select count(*) from t2 where c2 > 2.0001301")
+        tdSql.checkData(0, 0, 8)
+
+        tdSql.query("select count(*) from t2 where c2 >= 2.0001301")
+        tdSql.checkData(0, 0, 9)
+
+        tdSql.query("select count(*) from t2 where c2 <> 2.0001301")
+        tdSql.checkData(0, 0, 9)
+
+        tdSql.query("select count(*) from t2 where c2 != 2.0001301")
+        tdSql.checkData(0, 0, 9)
+
+        tdSql.query("select count(*) from t2 where c2 >= 2.0001301 and c2 <= 2.0001301")
+        tdSql.checkData(0, 0, 1)
+
+        tdSql.query("select count(*) from t2 where c2 > 2.0001301 and c2 <= 2.0001301")
+        tdSql.checkRows(0)
+
+        tdSql.query("select count(*) from t2 where c2 >= 2.0001301 and c2 < 2.0001301")
+        tdSql.checkRows(0)
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())