diff --git a/cmake/taostools_CMakeLists.txt.in b/cmake/taostools_CMakeLists.txt.in
index d468e0acd3..2f2dfc5ddc 100644
--- a/cmake/taostools_CMakeLists.txt.in
+++ b/cmake/taostools_CMakeLists.txt.in
@@ -2,7 +2,7 @@
 # taos-tools
 ExternalProject_Add(taos-tools
         GIT_REPOSITORY https://github.com/taosdata/taos-tools.git
-        GIT_TAG 121c8a3
+        GIT_TAG a50de3b
         SOURCE_DIR "${TD_SOURCE_DIR}/tools/taos-tools"
         BINARY_DIR ""
         #BUILD_IN_SOURCE TRUE
diff --git a/docs/en/07-develop/03-insert-data/50-opentsdb-json.mdx b/docs/en/07-develop/03-insert-data/50-opentsdb-json.mdx
index 7a3ac6bad3..214580c179 100644
--- a/docs/en/07-develop/03-insert-data/50-opentsdb-json.mdx
+++ b/docs/en/07-develop/03-insert-data/50-opentsdb-json.mdx
@@ -47,7 +47,6 @@ Please refer to [OpenTSDB HTTP API](http://opentsdb.net/docs/build/html/api_http
 :::note
 
 - In JSON protocol, strings will be converted to NCHAR type and numeric values will be converted to double type.
-- Only data in array format is accepted and so an array must be used even if there is only one row.
 - The child table name is created automatically in a rule to guarantee its uniqueness. But you can configure `smlChildTableName` in taos.cfg to specify a tag value as the table names if the tag value is unique globally. For example, if a tag is called `tname` and you set `smlChildTableName=tname` in taos.cfg, when you insert `st,tname=cpu1,t1=4 c1=3 1626006833639000000`, the child table `cpu1` will be automatically created. Note that if multiple rows have the same tname but different tag_set values, the tag_set of the first row is used to create the table and the others are ignored.
 :::
 
diff --git a/docs/examples/python/connection_usage_native_reference.py b/docs/examples/python/connection_usage_native_reference.py
index 4803511e42..a7179b4cf8 100644
--- a/docs/examples/python/connection_usage_native_reference.py
+++ b/docs/examples/python/connection_usage_native_reference.py
@@ -8,7 +8,7 @@ conn.execute("CREATE DATABASE test")
 # change database. same as execute "USE db"
 conn.select_db("test")
 conn.execute("CREATE STABLE weather(ts TIMESTAMP, temperature FLOAT) TAGS (location INT)")
-affected_row: int = conn.execute("INSERT INTO t1 USING weather TAGS(1) VALUES (now, 23.5) (now+1m, 23.5) (now+2m 24.4)")
+affected_row: int = conn.execute("INSERT INTO t1 USING weather TAGS(1) VALUES (now, 23.5) (now+1m, 23.5) (now+2m, 24.4)")
 print("affected_row", affected_row)
 # output:
 # affected_row 3
diff --git a/docs/zh/07-develop/03-insert-data/50-opentsdb-json.mdx b/docs/zh/07-develop/03-insert-data/50-opentsdb-json.mdx
index 89818409c5..e1fd3dacc8 100644
--- a/docs/zh/07-develop/03-insert-data/50-opentsdb-json.mdx
+++ b/docs/zh/07-develop/03-insert-data/50-opentsdb-json.mdx
@@ -47,7 +47,6 @@ OpenTSDB JSON 格式协议采用一个 JSON 字符串表示一行或多行数据
 :::note
 
 - 对于 JSON 格式协议，TDengine 并不会自动把所有标签转成 NCHAR 类型， 字符串将将转为 NCHAR 类型， 数值将同样转换为 DOUBLE 类型。
-- TDengine 只接收 JSON **数组格式**的字符串，即使一行数据也需要转换成数组形式。
 - 默认生成的子表名是根据规则生成的唯一 ID 值。用户也可以通过在 taos.cfg 里配置 smlChildTableName 参数来指定某个标签值作为子表名。该标签值应该具有全局唯一性。举例如下：假设有个标签名为tname, 配置 smlChildTableName=tname, 插入数据为 `"tags": { "host": "web02","dc": "lga","tname":"cpu1"}` 则创建的子表名为 cpu1。注意如果多行数据 tname 相同，但是后面的 tag_set 不同，则使用第一行自动建表时指定的 tag_set，其他的行会忽略）。
 :::
 
diff --git a/tests/develop-test/5-taos-tools/taosbenchmark/commandline.py b/tests/develop-test/5-taos-tools/taosbenchmark/commandline.py
index 163cdd0055..ba296584ba 100644
--- a/tests/develop-test/5-taos-tools/taosbenchmark/commandline.py
+++ b/tests/develop-test/5-taos-tools/taosbenchmark/commandline.py
@@ -56,7 +56,7 @@ class TDTestCase:
 
     def run(self):
         binPath = self.getPath()
-        cmd = "%s -F 7 -H 9 -n 10 -t 2 -x -y -M -C -d newtest -l 5 -A binary,nchar\(31\) -b tinyint,binary\(23\),bool,nchar -w 29 -E -m $%%^*" %binPath
+        cmd = "%s -F 7 -n 10 -t 2 -x -y -M -C -d newtest -l 5 -A binary,nchar\(31\) -b tinyint,binary\(23\),bool,nchar -w 29 -E -m $%%^*" %binPath
         tdLog.info("%s" % cmd)
         os.system("%s" % cmd)
         tdSql.execute("use newtest")
diff --git a/tests/develop-test/5-taos-tools/taosbenchmark/invalid_commandline.py b/tests/develop-test/5-taos-tools/taosbenchmark/invalid_commandline.py
index e5a2551e63..d706eea068 100644
--- a/tests/develop-test/5-taos-tools/taosbenchmark/invalid_commandline.py
+++ b/tests/develop-test/5-taos-tools/taosbenchmark/invalid_commandline.py
@@ -53,7 +53,7 @@ class TDTestCase:
 
     def run(self):
         binPath = self.getPath()
-        cmd = "%s -F abc -P abc -I abc -T abc -H abc -i abc -S abc -B abc -r abc -t abc -n abc -l abc -w abc -w 16385 -R abc -O abc -a abc -n 2 -t 2 -r 1 -y" %binPath
+        cmd = "%s -F abc -P abc -I abc -T abc -i abc -S abc -B abc -r abc -t abc -n abc -l abc -w abc -w 16385 -R abc -O abc -a abc -n 2 -t 2 -r 1 -y" %binPath
         tdLog.info("%s" % cmd)
         os.system("%s" % cmd)
         tdSql.query("select count(*) from test.meters")
diff --git a/tools/shell/src/shellWebsocket.c b/tools/shell/src/shellWebsocket.c
index ebcd6b9002..bbb127b128 100644
--- a/tools/shell/src/shellWebsocket.c
+++ b/tools/shell/src/shellWebsocket.c
@@ -37,7 +37,9 @@ static int horizontalPrintWebsocket(WS_RES* wres, double* execute_time) {
   const void* data = NULL;
   int rows;
   ws_fetch_block(wres, &data, &rows);
-  *execute_time += (double)(ws_take_timing(wres)/1E6);
+  if (wres) {
+    *execute_time += (double)(ws_take_timing(wres)/1E6);
+  }
   if (!rows) {
     return 0;
   }
@@ -77,7 +79,9 @@ static int verticalPrintWebsocket(WS_RES* wres, double* pexecute_time) {
   int rows = 0;
   const void* data = NULL;
   ws_fetch_block(wres, &data, &rows);
-  *pexecute_time += (double)(ws_take_timing(wres)/1E6);
+  if (wres) {
+    *pexecute_time += (double)(ws_take_timing(wres)/1E6);
+  }
   if (!rows) {
     return 0;
   }
@@ -129,7 +133,9 @@ static int dumpWebsocketToFile(const char* fname, WS_RES* wres, double* pexecute
   int rows = 0;
   const void* data = NULL;
   ws_fetch_block(wres, &data, &rows);
-  *pexecute_time += (double)(ws_take_timing(wres)/1E6);
+  if (wres) {
+    *pexecute_time += (double)(ws_take_timing(wres)/1E6);
+  }
   if (!rows) {
     taosCloseFile(&pFile);
     return 0;
@@ -236,7 +242,10 @@ void shellRunSingleCommandWebsocketImp(char *command) {
     break;
   }
 
-  double execute_time = ws_take_timing(res)/1E6;
+  double execute_time = 0;
+  if (res) {
+    execute_time = ws_take_timing(res)/1E6;
+  }
 
   if (shellRegexMatch(command, "^\\s*use\\s+[a-zA-Z0-9_]+\\s*;\\s*$", REG_EXTENDED | REG_ICASE)) {
     fprintf(stdout, "Database changed.\r\n\r\n");