diff --git a/documentation20/cn/09.connections/docs.md b/documentation20/cn/09.connections/docs.md
index e2f921cc973c28f16f491705800012e1f6a6f074..d79d07661b95f8a807bff226185d3804e0ce0f4d 100644
--- a/documentation20/cn/09.connections/docs.md
+++ b/documentation20/cn/09.connections/docs.md
@@ -7,11 +7,21 @@ TDengine 能够与开源数据可视化系统 [Grafana](https://www.grafana.com/
 
 ### 安装Grafana
 
-目前 TDengine 支持 Grafana 6.2 以上的版本。用户可以根据当前的操作系统，到 Grafana 官网下载安装包，并执行安装。下载地址如下：https://grafana.com/grafana/download。
+目前 TDengine 支持 Grafana 7.0 以上的版本。用户可以根据当前的操作系统，到 Grafana 官网下载安装包，并执行安装。下载地址如下：<https://grafana.com/grafana/download>。
 
 ### 配置Grafana
 
-TDengine 的 Grafana 插件请从 <https://github.com/taosdata/grafanaplugin/releases/latest> 下载。
+TDengine 的 Grafana 插件托管在GitHub，可从 <https://github.com/taosdata/grafanaplugin/releases/latest> 下载，当前最新版本为 3.1.3。
+
+推荐使用 [`grafana-cli` 命令行工具](https://grafana.com/docs/grafana/latest/administration/cli/) 进行插件安装。
+
+```bash
+sudo -u grafana grafana-cli \
+  --pluginUrl https://github.com/taosdata/grafanaplugin/releases/download/v3.1.3/tdengine-datasource-3.1.3.zip \
+  plugins install tdengine-datasource
+```
+
+或者下载到本地并解压到 Grafana 插件目录。
 
 ```bash
 GF_VERSION=3.1.3
@@ -31,11 +41,18 @@ Grafana 7.3+ / 8.x 版本会对插件进行签名检查，因此还需要在 gra
 allow_loading_unsigned_plugins = tdengine-datasource
 ```
 
+在Docker环境下，可以使用如下的环境变量设置自动安装并设置 TDengine 插件：
+
+```bash
+GF_INSTALL_PLUGINS=https://github.com/taosdata/grafanaplugin/releases/download/v3.1.3/tdengine-datasource-3.1.3.zip;tdengine-datasource
+GF_PLUGINS_ALLOW_LOADING_UNSIGNED_PLUGINS=tdengine-datasource
+```
+
 ### 使用 Grafana
 
 #### 配置数据源
 
-用户可以直接通过 localhost:3000 的网址，登录 Grafana 服务器（用户名/密码：admin/admin），通过左侧 `Configuration -> Data Sources` 可以添加数据源，如下图所示：
+用户可以直接通过 <http://localhost:3000> 的网址，登录 Grafana 服务器（用户名/密码：admin/admin），通过左侧 `Configuration -> Data Sources` 可以添加数据源，如下图所示：
 
 ![img](../images/connections/add_datasource1.jpg)
 
diff --git a/documentation20/cn/12.taos-sql/docs.md b/documentation20/cn/12.taos-sql/docs.md
index b9c56191f35354d0c84346729d41d9a77c11ec5a..1ff25d062419fec95ab843e08f17ad92bc09d363 100755
--- a/documentation20/cn/12.taos-sql/docs.md
+++ b/documentation20/cn/12.taos-sql/docs.md
@@ -48,7 +48,7 @@ TDengine 缺省的时间戳是毫秒精度，但通过在 CREATE DATABASE 时传
 | 3    |  BIGINT   | 8      | 长整型，范围 [-2^63+1,   2^63-1], -2^63 用于 NULL                                 |
 | 4    |   FLOAT   | 4      | 浮点型，有效位数 6-7，范围 [-3.4E38, 3.4E38]                  |
 | 5    |  DOUBLE   | 8      | 双精度浮点型，有效位数 15-16，范围 [-1.7E308, 1.7E308]      |
-| 6    |  BINARY   | 自定义 | 记录单字节字符串，建议只用于处理 ASCII 可见字符，中文等多字节字符需使用 nchar。理论上，最长可以有 16374 字节，但由于每行数据最多 16K 字节，实际上限一般小于理论值。binary 仅支持字符串输入，字符串两端需使用单引号引用。使用时须指定大小，如 binary(20) 定义了最长为 20 个单字节字符的字符串，每个字符占 1 byte 的存储空间，总共固定占用 20 bytes 的空间，此时如果用户字符串超出 20 字节将会报错。对于字符串内的单引号，可以用转义字符反斜线加单引号来表示，即 `\’`。 |
+| 6    |  BINARY   | 自定义 | 记录单字节字符串，建议只用于处理 ASCII 可见字符，中文等多字节字符需使用 nchar。理论上，最长可以有 16374 字节。binary 仅支持字符串输入，字符串两端需使用单引号引用。使用时须指定大小，如 binary(20) 定义了最长为 20 个单字节字符的字符串，每个字符占 1 byte 的存储空间，总共固定占用 20 bytes 的空间，此时如果用户字符串超出 20 字节将会报错。对于字符串内的单引号，可以用转义字符反斜线加单引号来表示，即 `\’`。 |
 | 7    | SMALLINT  | 2      | 短整型， 范围 [-32767, 32767], -32768 用于 NULL                                |
 | 8    |  TINYINT  | 1      | 单字节整型，范围 [-127, 127], -128 用于 NULL                                |
 | 9    |   BOOL    | 1      | 布尔型，{true, false}                                      |
diff --git a/documentation20/cn/14.devops/01.telegraf/docs.md b/documentation20/cn/14.devops/01.telegraf/docs.md
index 485e7038f0e8aa122b20ba6608a629de66d7dc8c..ba1620fd8255f700acc5a311cef310dfe5e7ac38 100644
--- a/documentation20/cn/14.devops/01.telegraf/docs.md
+++ b/documentation20/cn/14.devops/01.telegraf/docs.md
@@ -33,8 +33,8 @@ IT 运维监测数据通常都是对时间特性比较敏感的数据，例如
 ### 下载 TDengine 插件到 grafana 插件目录
 
 ```bash
-1. wget -c https://github.com/taosdata/grafanaplugin/releases/download/v3.1.1/tdengine-datasource-3.1.1.zip
-2. sudo unzip tdengine-datasource-3.1.1.zip -d /var/lib/grafana/plugins/
+1. wget -c https://github.com/taosdata/grafanaplugin/releases/download/v3.1.3/tdengine-datasource-3.1.3.zip
+2. sudo unzip tdengine-datasource-3.1.3.zip -d /var/lib/grafana/plugins/
 3. sudo chown grafana:grafana -R /var/lib/grafana/plugins/tdengine
 4. echo -e "[plugins]\nallow_loading_unsigned_plugins = tdengine-datasource\n" | sudo tee -a /etc/grafana/grafana.ini
 5. sudo systemctl restart grafana-server.service
diff --git a/documentation20/cn/14.devops/02.collectd/docs.md b/documentation20/cn/14.devops/02.collectd/docs.md
index 0073cf78340a1100ec97cb70685410ced0cf5d4e..c27da8c6d8c1101b136b419eb689a309e5487b6c 100644
--- a/documentation20/cn/14.devops/02.collectd/docs.md
+++ b/documentation20/cn/14.devops/02.collectd/docs.md
@@ -32,8 +32,8 @@ IT 运维监测数据通常都是对时间特性比较敏感的数据，例如
 ### 复制 TDengine 插件到 grafana 插件目录
 
 ```bash
-1. wget -c https://github.com/taosdata/grafanaplugin/releases/download/v3.1.1/tdengine-datasource-3.1.1.zip
-2. sudo unzip tdengine-datasource-3.1.1.zip -d /var/lib/grafana/plugins/
+1. wget -c https://github.com/taosdata/grafanaplugin/releases/download/v3.1.3/tdengine-datasource-3.1.3.zip
+2. sudo unzip tdengine-datasource-3.1.3.zip -d /var/lib/grafana/plugins/
 3. sudo chown grafana:grafana -R /var/lib/grafana/plugins/tdengine
 4. echo -e "[plugins]\nallow_loading_unsigned_plugins = tdengine-datasource\n" | sudo tee -a /etc/grafana/grafana.ini
 5. sudo systemctl restart grafana-server.service
diff --git a/documentation20/en/09.connections/docs.md b/documentation20/en/09.connections/docs.md
index f5af01d9b189d20facdd3c0702d72f256a2b4d8e..0e15e58a531cbd783168802e919aa8095fe034bf 100644
--- a/documentation20/en/09.connections/docs.md
+++ b/documentation20/en/09.connections/docs.md
@@ -6,25 +6,47 @@ TDengine can be quickly integrated with [Grafana](https://www.grafana.com/), an
 
 ### Install Grafana
 
-TDengine currently supports Grafana 6.2 and above. You can download and install the package from Grafana website according to the current operating system. The download address is as follows:
-
-https://grafana.com/grafana/download.
+TDengine currently supports Grafana 7.0 and above. You can download and install the package from Grafana website according to the current operating system. The download address is as follows: <https://grafana.com/grafana/download>.
 
 ### Configure Grafana
 
-Download grafana plugin from <https://github.com/taosdata/grafanaplugin/releases/latest> .
+TDengine data source plugin for Grafana is hosted on GitHub, refer to GitHub latest release page <https://github.com/taosdata/grafanaplugin/releases/latest> to download the latest plugin package. Currently it's version 3.1.3 .
+
+It is recommended to use [`grafana-cli` command line tool](https://grafana.com/docs/grafana/latest/administration/cli/) to install the plugin.
+
+```bash
+sudo -u grafana grafana-cli \
+  --pluginUrl https://github.com/taosdata/grafanaplugin/releases/download/v3.1.3/tdengine-datasource-3.1.3.zip \
+  plugins install tdengine-datasource
+```
+
+Users could manually download the plugin package and install it to Grafana plugins directory.
 
 ```bash
 GF_VERSION=3.1.3
 wget https://github.com/taosdata/grafanaplugin/releases/download/v$GF_VERSION/tdengine-datasource-$GF_VERSION.zip
 ```
 
-Taking Centos 7.2 as an example, just copy grafanaplugin directory to /var/lib/grafana/plugins directory and restart Grafana.
+Taking Centos 7.2 as an example, just unpack the package to /var/lib/grafana/plugins directory and restart Grafana.
 
 ```bash
 sudo unzip tdengine-datasource-$GF_VERSION.zip /var/lib/grafana/plugins/
 ```
 
+Grafana will check the signature after 7.3 and 8.x for security. Users need additional configurations in `grafana.ini` file to allow unsigned plugins like TDengine data source.
+
+```ini
+[plugins]
+allow_loading_unsigned_plugins = tdengine-datasource
+```
+
+In docker/compose/k8s, simply setting the two environment variables will take it all for you.
+
+```bash
+GF_INSTALL_PLUGINS=https://github.com/taosdata/grafanaplugin/releases/download/v3.1.3/tdengine-datasource-3.1.3.zip;tdengine-datasource
+GF_PLUGINS_ALLOW_LOADING_UNSIGNED_PLUGINS=tdengine-datasource
+```
+
 ### Use Grafana
 
 #### Configure data source
diff --git a/documentation20/en/14.devops/01.telegraf/docs.md b/documentation20/en/14.devops/01.telegraf/docs.md
index a8b5db08ccc1131611c12fb53970115a89368376..f4270c2f8750ef6261df27e348b6f6a539447b43 100644
--- a/documentation20/en/14.devops/01.telegraf/docs.md
+++ b/documentation20/en/14.devops/01.telegraf/docs.md
@@ -33,8 +33,8 @@ Please download TDengine 2.3.0.0 or the above version from TAOS Data's [official
 ### Download TDengine plugin to Grafana plugin's directory
 
 ```bash
-1. wget -c https://github.com/taosdata/grafanaplugin/releases/download/v3.1.1/tdengine-datasource-3.1.1.zip
-2. sudo unzip tdengine-datasource-3.1.1.zip -d /var/lib/grafana/plugins/
+1. wget -c https://github.com/taosdata/grafanaplugin/releases/download/v3.1.3/tdengine-datasource-3.1.3.zip
+2. sudo unzip tdengine-datasource-3.1.3.zip -d /var/lib/grafana/plugins/
 3. sudo chown grafana:grafana -R /var/lib/grafana/plugins/tdengine
 4. echo -e "[plugins]\nallow_loading_unsigned_plugins = tdengine-datasource\n" | sudo tee -a /etc/grafana/grafana.ini
 5. sudo systemctl restart grafana-server.service
diff --git a/documentation20/en/14.devops/02.collectd/docs.md b/documentation20/en/14.devops/02.collectd/docs.md
index 15a83d7f0c78f9e36122d4c7a0c125daddfa1c6a..3c7dcd21380a8406a754293567d340dd1e461961 100644
--- a/documentation20/en/14.devops/02.collectd/docs.md
+++ b/documentation20/en/14.devops/02.collectd/docs.md
@@ -32,8 +32,8 @@ Please download TDengine 2.3.0.0 or the above version from TAOS Data's [official
 ### Download TDengine plugin to Grafana plugin's directory
 
 ```bash
-1. wget -c https://github.com/taosdata/grafanaplugin/releases/download/v3.1.1/tdengine-datasource-3.1.1.zip
-2. sudo unzip tdengine-datasource-3.1.1.zip -d /var/lib/grafana/plugins/
+1. wget -c https://github.com/taosdata/grafanaplugin/releases/download/v3.1.3/tdengine-datasource-3.1.3.zip
+2. sudo unzip tdengine-datasource-3.1.3.zip -d /var/lib/grafana/plugins/
 3. sudo chown grafana:grafana -R /var/lib/grafana/plugins/tdengine
 4. echo -e "[plugins]\nallow_loading_unsigned_plugins = tdengine-datasource\n" | sudo tee -a /etc/grafana/grafana.ini
 5. sudo systemctl restart grafana-server.service
diff --git a/tests/develop-test/session_two_stage.py b/tests/develop-test/2-query/session_two_stage.py
similarity index 100%
rename from tests/develop-test/session_two_stage.py
rename to tests/develop-test/2-query/session_two_stage.py
diff --git a/tests/system-test/fulltest-query.sh b/tests/system-test/fulltest-query.sh
index c6a2da21fe3ff832ade57b408cb2db8a7e8e690b..9816a36df5339d6e76b1269c8b5e26a6f639a0aa 100755
--- a/tests/system-test/fulltest-query.sh
+++ b/tests/system-test/fulltest-query.sh
@@ -1,8 +1,4 @@
-
-python3 ./test.py -f 2-query/ts_hidden_column.py
-python3 ./test.py -f 2-query/union-order.py
-python3 test.py -f 2-query/TD-11256.py
-
+python3 ./test.py -f 2-query/TD-11256.py
 python3 ./test.py -f 2-query/TD-11389.py
 python3 ./test.py -f 2-query/TD-11945_crash.py
 python3 ./test.py -f 2-query/TD-12340-12342.py
diff --git a/tests/test-CI.sh b/tests/test-CI.sh
index 7c31d4cd6164696f57144f70ba785cf9687a6309..a884cc0cae5b4401ee6c6d7a28f32d0c3627e442 100755
--- a/tests/test-CI.sh
+++ b/tests/test-CI.sh
@@ -208,7 +208,8 @@ if [ "$1" == "full" ]; then
   runPyCaseOneByOne fulltest-connector.sh
 else
   echo "### run $1 $2 test ###"
-  if [ "$1" != "query" ] && [ "$1" != "other" ] && [ "$1" != "tools" ] && [ "$1" != "insert" ] && [ "$1" != "connector" ] && [ "$1" != "taosAdapter" ] ;then
+
+  if [ "$1" != "query" ] && [ "$1" != "taosAdapter" ] && [ "$1" != "other" ] && [ "$1" != "tools" ] && [ "$1" != "insert" ] && [ "$1" != "connector" ] ;then
     echo " wrong option:$1 must one of [query,other,tools,insert,connector,taosAdapter]"
     exit 8
   fi