Merge branch 'develop' into xiaoping/cases

documentation20/en/11.administrator/docs.md

@@ -59,14 +59,14 @@ When TDengine receives the application's request packet, it first writes the req
 
 There are two system configuration parameters involved:
 
-- walLevel: WAL level, 0: do not write wal; 1: write wal, but do not execute fsync; 2: write wal and execute fsync.
+- walLevel: WAL level, 0: do not write WAL; 1: write WAL, but do not execute fsync; 2: write WAL and execute fsync.
 - fsync: the cycle in which fsync is executed when walLevel is set to 2. Setting to 0 means that fsync is executed immediately whenever there is a write.
 
 To guarantee 100% data safe, you need to set walLevel to 2 and fsync to 0. In that way, the write speed will decrease. However, if the number of threads starting to write data on the application side reaches a certain number (more than 50), the performance of writing data will also be good, only about 30% lower than that of fsync set to 3000 milliseconds.
 
 ### Disaster recovery
 
-The cluster of TDengine provides high-availability of the system and implements disaster recovery through the multipl-replica mechanism.
+The cluster of TDengine provides high-availability of the system and implements disaster recovery through the multiple-replica mechanism.
 
 TDengine cluster is managed by mnode. In order to ensure the high reliability of the mnode, multiple mnode replicas can be configured. The number of replicas is determined by system configuration parameter numOfMnodes. In order to support high reliability, it needs to be set to be greater than 1. In order to ensure the strong consistency of metadata, mnode replicas duplicate data synchronously to ensure the strong consistency of metadata.
 
@@ -114,8 +114,8 @@ Data in different application scenarios often have different data characteristic
 - minRows: the minimum number of records in a file block, in pieces, default: 100.
 - maxRows: the maximum number of records in a file block, in pieces, default: 4096.
 - comp: file compression flag bit, 0: off; 1: one-stage compression; 2: two-stage compression. Default: 2.
-- walLevel: WAL level. 1: write wal, but do not execute fsync; 2: write wal and execute fsync. Default: 1.
-- fsync: the period during which fsync is executed when wal is set to 2. Setting to 0 means that fsync is executed immediately whenever a write happens, in milliseconds, and the default value is 3000.
+- walLevel: WAL level. 1: write WAL, but do not execute fsync; 2: write WAL and execute fsync. Default: 1.
+- fsync: the period during which fsync is executed when WAL is set to 2. Setting to 0 means that fsync is executed immediately whenever a write happens, in milliseconds, and the default value is 3000.
 - cache: the size of the memory block in megabytes (MB), default: 16.
 - blocks: how many cache-sized memory blocks are in each VNODE (TSDB). Therefore, the memory size used by a VNODE is roughly (cache * blocks), in blocks, and the default value is 4.
 - replica: number of replicas; value range: 1-3, in items, default value: 1
@@ -377,7 +377,7 @@ The system administrator can query the connection, ongoing query and stream comp
 SHOW CONNECTIONS;
 ```
 
-Show the connection of the database, and one column shows ip: port, which is the IP address and port number of the connection.
+Show the connection of the database, and one column shows IP: port, which is the IP address and port number of the connection.
 
 ```mysql
 KILL CONNECTION <connection-id>;
@@ -442,7 +442,7 @@ Some CLI options are needed to use the script:
         sudo ./TDinsight.sh -a http://localhost:6041 -u root -p taosdata -E <notifier uid>
         ```
 
-   2. Use TDengine data source plugin's builtin [Aliyun SMS](https://www.aliyun.com/product/sms) alerting support with `-s` flag, and input these options：
+   2. Use TDengine data source plugin's built-in [Aliyun SMS](https://www.aliyun.com/product/sms) alerting support with `-s` flag, and input these options：
         1. Access key id with option `-I`
         2. Access key secret with option `K`
         3. Access key sign name with option `-S`
@@ -468,7 +468,7 @@ After installing TDengine, the following directories or files are generated in t
 
 | **Directory/File**        | **Description**                                              |
 | ------------------------- | ------------------------------------------------------------ |
-| /usr/local/taos/bin       | TEngine’s executable directory. The executables are connected to the/usr/bin directory via softly links. |
+| /usr/local/taos/bin       | TDengine’s executable directory. The executables are connected to the/usr/bin directory via softly links. |
 | /usr/local/taos/connector | TDengine’s various connector directories.                    |
 | /usr/local/taos/driver    | TDengine’s dynamic link library directory. Connect to /usr/lib directory via soft links. |
 | /usr/local/taos/examples  | TDengine’s application example directory for various languages. |

src/connector/C#/examples/lib/Utils.cs

@@ -14,11 +14,11 @@ namespace Sample.UtilsTools
         static string db = "";
         static short port = 0;
         static string globalDbName = "csharp_example_db";
-        //get a tdengine connection
+        //get a TDengine connection
         public static IntPtr TDConnection()
         {
-            TDengine.Options((int)TDengineInitOption.TDDB_OPTION_CONFIGDIR, GetConfigPath());
-            TDengine.Options((int)TDengineInitOption.TDDB_OPTION_SHELL_ACTIVITY_TIMER, "60");
+            TDengine.Options((int)TDengineInitOption.TSDB_OPTION_CONFIGDIR, GetConfigPath());
+            TDengine.Options((int)TDengineInitOption.TSDB_OPTION_SHELL_ACTIVITY_TIMER, "60");
             TDengine.Init();
 
             IntPtr conn = TDengine.Connect(ip, user, password, db, port);
@@ -100,18 +100,18 @@ namespace Sample.UtilsTools
                 ExitProgram();
             }
 
-            List<TDengineMeta> metas = GetResField(res);
-            int fieldCount = metas.Count;
-            // metas.ForEach((item) => { Console.Write("{0} ({1}) \t|\t", item.name, item.size); });
+            List<TDengineMeta> metaList = GetResField(res);
+            int fieldCount = metaList.Count;
+            // metaList.ForEach((item) => { Console.Write("{0} ({1}) \t|\t", item.name, item.size); });
 
-            List<Object> datas = QueryRes(res, metas);
-            for (int index = 0; index < datas.Count; index++)
+            List<Object> dataList = QueryRes(res, metaList);
+            for (int index = 0; index < dataList.Count; index++)
             {
                 if (index % fieldCount == 0 && index != 0)
                 {
                     Console.WriteLine("");
                 }
-                Console.Write("{0} \t|\t", datas[index].ToString());
+                Console.Write("{0} \t|\t", dataList[index].ToString());
 
             }
             Console.WriteLine("");
@@ -127,10 +127,10 @@ namespace Sample.UtilsTools
                 ExitProgram();
             }
 
-            List<TDengineMeta> metas = GetResField(res);
+            List<TDengineMeta> meta = GetResField(res);
             result.Add(colName);
 
-            dataRaw = QueryRes(res, metas);
+            dataRaw = QueryRes(res, meta);
             result.Add(dataRaw);
 
             if (TDengine.ErrorNo(res) != 0)
@@ -161,7 +161,7 @@ namespace Sample.UtilsTools
             {
                 if (TDengine.Close(conn) == 0)
                 {
-                    Console.WriteLine("close connection sucess");
+                    Console.WriteLine("close connection success");
                 }
                 else
                 {
@@ -171,8 +171,8 @@ namespace Sample.UtilsTools
         }
         public static List<TDengineMeta> GetResField(IntPtr res)
         {
-            List<TDengineMeta> metas = TDengine.FetchFields(res);
-            return metas;
+            List<TDengineMeta> meta = TDengine.FetchFields(res);
+            return meta;
         }
         public static void ExitProgram()
         {
@@ -187,16 +187,16 @@ namespace Sample.UtilsTools
             {
                 ExitProgram();
             }
-            List<TDengineMeta> metas = GetResField(res);
-            dataRaw = QueryRes(res, metas);
+            List<TDengineMeta> meta = GetResField(res);
+            dataRaw = QueryRes(res, meta);
             return dataRaw;
         }
 
-        private static List<Object> QueryRes(IntPtr res, List<TDengineMeta> metas)
+        private static List<Object> QueryRes(IntPtr res, List<TDengineMeta> meta)
         {
             IntPtr taosRow;
             List<Object> dataRaw = new List<Object>();
-            int fieldCount = metas.Count;
+            int fieldCount = meta.Count;
             while ((taosRow = TDengine.FetchRows(res)) != IntPtr.Zero)
             {
                 dataRaw.AddRange(FetchRow(taosRow,res));
@@ -295,7 +295,7 @@ namespace Sample.UtilsTools
                         dataRaw.Add(v16);
                         break;                    
                     default:
-                        dataRaw.Add("nonsupport data type value");
+                        dataRaw.Add("nonsupport data type");
                         break;
                 }
 

src/connector/C#/src/TDengineDriver/TDengineDriver.cs

@@ -44,8 +44,8 @@ namespace TDengineDriver
         TSDB_OPTION_LOCALE = 0,
         TSDB_OPTION_CHARSET = 1,
         TSDB_OPTION_TIMEZONE = 2,
-        TDDB_OPTION_CONFIGDIR = 3,
-        TDDB_OPTION_SHELL_ACTIVITY_TIMER = 4
+        TSDB_OPTION_CONFIGDIR = 3,
+        TSDB_OPTION_SHELL_ACTIVITY_TIMER = 4
     }
     enum TaosField
     {
@@ -147,7 +147,7 @@ namespace TDengineDriver
     /// <summary>
     /// User defined callback function for interface "QueryAsync()"
     /// ,actually is a delegate in .Net.
-    /// This function aim to handel the taoRes which points to
+    /// This function aim to handle the taoRes which points to
     /// the caller method's sql resultset.
     /// </summary>
     /// <param name="param"> This parameter will sent by caller method (QueryAsync()).</param>
@@ -234,10 +234,10 @@ namespace TDengineDriver
         {
             // const int fieldSize = 68;
 
-            List<TDengineMeta> metas = new List<TDengineMeta>();
+            List<TDengineMeta> metaList = new List<TDengineMeta>();
             if (res == IntPtr.Zero)
             {
-                return metas;
+                return metaList;
             }
 
             int fieldCount = FieldCount(res);
@@ -250,11 +250,11 @@ namespace TDengineDriver
                 meta.name = Marshal.PtrToStringAnsi(fieldsPtr + offset);
                 meta.type = Marshal.ReadByte(fieldsPtr + offset + (int)TaosField.TYPE_OFFSET);
                 meta.size = Marshal.ReadInt16(fieldsPtr + offset + (int)TaosField.BYTES_OFFSET);
-                metas.Add(meta);
+                metaList.Add(meta);
             }
 
 
-            return metas;
+            return metaList;
         }
 
         [DllImport("taos", EntryPoint = "taos_fetch_row", CallingConvention = CallingConvention.Cdecl)]
@@ -430,7 +430,7 @@ namespace TDengineDriver
         /// returned in this API is unknown.
         /// </summary>
         /// <param name="stmt">could be the value returned by 'StmtInit', that may be a valid object or NULL.</param>
-        /// <returns>piont the error message</returns>
+        /// <returns>point the error message</returns>
         [DllImport("taos", EntryPoint = "taos_stmt_errstr", CallingConvention = CallingConvention.Cdecl)]
         static extern private IntPtr StmtErrPtr(IntPtr stmt);
 
@@ -452,9 +452,9 @@ namespace TDengineDriver
         // Async Query 
         /// <summary>
         /// This API uses non-blocking call mode.
-        /// Application can open mutilple tables and manipulate(query or insert) opened table concurrently. 
-        /// So applications must ensure that opetations on the same table is compeletly serialized.
-        /// Becuase that will cause some query and insert operations cannot be performed.
+        /// Application can open multiple tables and manipulate(query or insert) opened table concurrently. 
+        /// So applications must ensure that opetations on the same table is completely serialized.
+        /// Because that will cause some query and insert operations cannot be performed.
         /// </summary>
         /// <param name="taos"> A taos connection return by Connect()</param>
         /// <param name="sql">sql command need to execute</param>
@@ -575,7 +575,7 @@ namespace TDengineDriver
         /// </param>
         /// <param name="param">First parameter provide by application for callback usage.
         /// While callback,this parameter is provided to the application.</param>
-        /// <param name="callback2">The second callback function which will be caled when the continuous query 
+        /// <param name="callback2">The second callback function which will be called when the continuous query 
         /// stop automatically.</param>
         /// <returns> Return null indicate creation failed, not null for success.</returns>
         [DllImport("taos", EntryPoint = "taos_open_stream", CallingConvention = CallingConvention.Cdecl)]

src/connector/C#/src/TDengineDriver/TaosBind.cs

@@ -17,17 +17,17 @@ namespace TDengineDriver
             TAOS_BIND bind = new TAOS_BIND();
             byte[] boolByteArr = BitConverter.GetBytes(val);
             int boolByteArrSize = Marshal.SizeOf(boolByteArr[0]) * boolByteArr.Length;
-            IntPtr bo = Marshal.AllocHGlobal(1);
-            Marshal.Copy(boolByteArr, 0, bo, boolByteArr.Length);
+            IntPtr c_bool = Marshal.AllocHGlobal(1);
+            Marshal.Copy(boolByteArr, 0, c_bool, boolByteArr.Length);
 
             int length = sizeof(Boolean);
-            IntPtr lengPtr = Marshal.AllocHGlobal(sizeof(int));
-            Marshal.WriteInt32(lengPtr, length);
+            IntPtr lengthPtr = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(lengthPtr, length);
 
             bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_BOOL;
-            bind.buffer = bo;
+            bind.buffer = c_bool;
             bind.buffer_length = length;
-            bind.length = lengPtr;
+            bind.length = lengthPtr;
             bind.is_null = IntPtr.Zero;
 
             return bind;
@@ -38,17 +38,17 @@ namespace TDengineDriver
 
             byte[] tinyIntByteArr = BitConverter.GetBytes(val);
             int tinyIntByteArrSize = Marshal.SizeOf(tinyIntByteArr[0]) * tinyIntByteArr.Length;
-            IntPtr uManageTinyInt = Marshal.AllocHGlobal(tinyIntByteArrSize);
-            Marshal.Copy(tinyIntByteArr, 0, uManageTinyInt, tinyIntByteArr.Length);
+            IntPtr c_tinyint = Marshal.AllocHGlobal(tinyIntByteArrSize);
+            Marshal.Copy(tinyIntByteArr, 0, c_tinyint, tinyIntByteArr.Length);
 
             int length = sizeof(sbyte);
-            IntPtr lengPtr = Marshal.AllocHGlobal(sizeof(int));
-            Marshal.WriteInt32(lengPtr, length);
+            IntPtr lengthPtr = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(lengthPtr, length);
 
             bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_TINYINT;
-            bind.buffer = uManageTinyInt;
+            bind.buffer = c_tinyint;
             bind.buffer_length = length;
-            bind.length = lengPtr;
+            bind.length = lengthPtr;
             bind.is_null = IntPtr.Zero;
             return bind;
 
@@ -58,17 +58,17 @@ namespace TDengineDriver
         {
 
             TAOS_BIND bind = new TAOS_BIND();
-            IntPtr uManageSmallInt = Marshal.AllocHGlobal(sizeof(short));
-            Marshal.WriteInt16(uManageSmallInt, val);
+            IntPtr c_smallint = Marshal.AllocHGlobal(sizeof(short));
+            Marshal.WriteInt16(c_smallint, val);
 
             int length = sizeof(short);
-            IntPtr lengPtr = Marshal.AllocHGlobal(sizeof(int));
-            Marshal.WriteInt32(lengPtr, length);
+            IntPtr lengthPtr = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(lengthPtr, length);
 
             bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_SMALLINT;
-            bind.buffer = uManageSmallInt;
+            bind.buffer = c_smallint;
             bind.buffer_length = length;
-            bind.length = lengPtr;
+            bind.length = lengthPtr;
             bind.is_null = IntPtr.Zero;
 
             return bind;
@@ -77,17 +77,17 @@ namespace TDengineDriver
         public static TAOS_BIND BindInt(int val)
         {
             TAOS_BIND bind = new TAOS_BIND();
-            IntPtr uManageInt = Marshal.AllocHGlobal(sizeof(int));
-            Marshal.WriteInt32(uManageInt, val);
+            IntPtr c_int = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(c_int, val);
 
             int length = sizeof(int);
-            IntPtr lengPtr = Marshal.AllocHGlobal(sizeof(int));
-            Marshal.WriteInt32(lengPtr, length);
+            IntPtr lengthPtr = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(lengthPtr, length);
 
             bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_INT;
-            bind.buffer = uManageInt;
+            bind.buffer = c_int;
             bind.buffer_length = length;
-            bind.length = lengPtr;
+            bind.length = lengthPtr;
             bind.is_null = IntPtr.Zero;
 
             return bind;
@@ -97,17 +97,17 @@ namespace TDengineDriver
         {
 
             TAOS_BIND bind = new TAOS_BIND();
-            IntPtr uManageBigInt = Marshal.AllocHGlobal(sizeof(long));
-            Marshal.WriteInt64(uManageBigInt, val);
+            IntPtr c_bigint = Marshal.AllocHGlobal(sizeof(long));
+            Marshal.WriteInt64(c_bigint, val);
 
             int length = sizeof(long);
-            IntPtr lengPtr = Marshal.AllocHGlobal(sizeof(int));
-            Marshal.WriteInt32(lengPtr, length);
+            IntPtr lengthPtr = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(lengthPtr, length);
 
             bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_BIGINT;
-            bind.buffer = uManageBigInt;
+            bind.buffer = c_bigint;
             bind.buffer_length = length;
-            bind.length = lengPtr;
+            bind.length = lengthPtr;
             bind.is_null = IntPtr.Zero;
 
             return bind;
@@ -117,17 +117,17 @@ namespace TDengineDriver
         {
             TAOS_BIND bind = new TAOS_BIND();
 
-            IntPtr uManageTinyInt = Marshal.AllocHGlobal(sizeof(byte));
-            Marshal.WriteByte(uManageTinyInt, val);
+            IntPtr c_unsigned_tinyint = Marshal.AllocHGlobal(sizeof(byte));
+            Marshal.WriteByte(c_unsigned_tinyint, val);
 
             int length = sizeof(byte);
-            IntPtr lengPtr = Marshal.AllocHGlobal(sizeof(int));
-            Marshal.WriteInt32(lengPtr, length);
+            IntPtr lengthPtr = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(lengthPtr, length);
 
             bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_UTINYINT;
-            bind.buffer = uManageTinyInt;
+            bind.buffer = c_unsigned_tinyint;
             bind.buffer_length = length;
-            bind.length = lengPtr;
+            bind.length = lengthPtr;
             bind.is_null = IntPtr.Zero;
 
             return bind;
@@ -139,17 +139,17 @@ namespace TDengineDriver
 
             byte[] uSmallIntByteArr = BitConverter.GetBytes(val);
             int usmallSize = Marshal.SizeOf(uSmallIntByteArr[0]) * uSmallIntByteArr.Length;
-            IntPtr uManageUnsignSmallInt = Marshal.AllocHGlobal(usmallSize);
-            Marshal.Copy(uSmallIntByteArr, 0, uManageUnsignSmallInt, uSmallIntByteArr.Length);
+            IntPtr c_unsigned_smallint = Marshal.AllocHGlobal(usmallSize);
+            Marshal.Copy(uSmallIntByteArr, 0, c_unsigned_smallint, uSmallIntByteArr.Length);
 
             int length = sizeof(UInt16);
-            IntPtr lengPtr = Marshal.AllocHGlobal(sizeof(int));
-            Marshal.WriteInt32(lengPtr, length);
+            IntPtr lengthPtr = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(lengthPtr, length);
 
             bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_USMALLINT;
-            bind.buffer = uManageUnsignSmallInt;
+            bind.buffer = c_unsigned_smallint;
             bind.buffer_length = length;
-            bind.length = lengPtr;
+            bind.length = lengthPtr;
             bind.is_null = IntPtr.Zero;
 
             return bind;
@@ -159,19 +159,19 @@ namespace TDengineDriver
         {
             TAOS_BIND bind = new TAOS_BIND();
 
-            byte[] uManageIntByteArr = BitConverter.GetBytes(val);
-            int usmallSize = Marshal.SizeOf(uManageIntByteArr[0]) * uManageIntByteArr.Length;
-            IntPtr uManageInt = Marshal.AllocHGlobal(usmallSize);
-            Marshal.Copy(uManageIntByteArr, 0, uManageInt, uManageIntByteArr.Length);
+            byte[] byteArr = BitConverter.GetBytes(val);
+            int usmallSize = Marshal.SizeOf(byteArr[0]) * byteArr.Length;
+            IntPtr c_unsigned_int = Marshal.AllocHGlobal(usmallSize);
+            Marshal.Copy(byteArr, 0, c_unsigned_int, byteArr.Length);
 
             int length = sizeof(uint);
-            IntPtr lengPtr = Marshal.AllocHGlobal(sizeof(int));
-            Marshal.WriteInt32(lengPtr, length);
+            IntPtr lengthPtr = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(lengthPtr, length);
 
             bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_UINT;
-            bind.buffer = uManageInt;
+            bind.buffer = c_unsigned_int;
             bind.buffer_length = length;
-            bind.length = lengPtr;
+            bind.length = lengthPtr;
             bind.is_null = IntPtr.Zero;
 
             return bind;
@@ -181,19 +181,19 @@ namespace TDengineDriver
         {
             TAOS_BIND bind = new TAOS_BIND();
 
-            byte[] uManageBigIntByteArr = BitConverter.GetBytes(val);
-            int usmallSize = Marshal.SizeOf(uManageBigIntByteArr[0]) * uManageBigIntByteArr.Length;
-            IntPtr uManageBigInt = Marshal.AllocHGlobal(usmallSize);
-            Marshal.Copy(uManageBigIntByteArr, 0, uManageBigInt, uManageBigIntByteArr.Length);
+            byte[] byteArr = BitConverter.GetBytes(val);
+            int usmallSize = Marshal.SizeOf(byteArr[0]) * byteArr.Length;
+            IntPtr c_unsigned_bigint = Marshal.AllocHGlobal(usmallSize);
+            Marshal.Copy(byteArr, 0, c_unsigned_bigint, byteArr.Length);
 
             int length = sizeof(ulong);
-            IntPtr lengPtr = Marshal.AllocHGlobal(sizeof(int));
-            Marshal.WriteInt32(lengPtr, length);
+            IntPtr lengthPtr = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(lengthPtr, length);
 
             bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_UBIGINT;
-            bind.buffer = uManageBigInt;
+            bind.buffer = c_unsigned_bigint;
             bind.buffer_length = length;
-            bind.length = lengPtr;
+            bind.length = lengthPtr;
             bind.is_null = IntPtr.Zero;
 
             return bind;
@@ -203,19 +203,19 @@ namespace TDengineDriver
         {
             TAOS_BIND bind = new TAOS_BIND();
 
-            byte[] floatByteArr = BitConverter.GetBytes(val);
-            int floatByteArrSize = Marshal.SizeOf(floatByteArr[0]) * floatByteArr.Length;
-            IntPtr uManageFloat = Marshal.AllocHGlobal(floatByteArrSize);
-            Marshal.Copy(floatByteArr, 0, uManageFloat, floatByteArr.Length);
+            byte[] byteArr = BitConverter.GetBytes(val);
+            int floatByteArrSize = Marshal.SizeOf(byteArr[0]) * byteArr.Length;
+            IntPtr c_float = Marshal.AllocHGlobal(floatByteArrSize);
+            Marshal.Copy(byteArr, 0, c_float, byteArr.Length);
 
             int length = sizeof(float);
-            IntPtr lengPtr = Marshal.AllocHGlobal(sizeof(int));
-            Marshal.WriteInt32(lengPtr, length);
+            IntPtr lengthPtr = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(lengthPtr, length);
 
             bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_FLOAT;
-            bind.buffer = uManageFloat;
+            bind.buffer = c_float;
             bind.buffer_length = length;
-            bind.length = lengPtr;
+            bind.length = lengthPtr;
             bind.is_null = IntPtr.Zero;
 
             return bind;
@@ -225,19 +225,19 @@ namespace TDengineDriver
         {
             TAOS_BIND bind = new TAOS_BIND();
 
-            byte[] doubleByteArr = BitConverter.GetBytes(val);
-            int doubleByteArrSize = Marshal.SizeOf(doubleByteArr[0]) * doubleByteArr.Length;
-            IntPtr uManageDouble = Marshal.AllocHGlobal(doubleByteArrSize);
-            Marshal.Copy(doubleByteArr, 0, uManageDouble, doubleByteArr.Length);
+            byte[] byteArr = BitConverter.GetBytes(val);
+            int doubleByteArrSize = Marshal.SizeOf(byteArr[0]) * byteArr.Length;
+            IntPtr c_double = Marshal.AllocHGlobal(doubleByteArrSize);
+            Marshal.Copy(byteArr, 0, c_double, byteArr.Length);
 
             int length = sizeof(Double);
-            IntPtr lengPtr = Marshal.AllocHGlobal(sizeof(int));
-            Marshal.WriteInt32(lengPtr, length);
+            IntPtr lengthPtr = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(lengthPtr, length);
 
             bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_DOUBLE;
-            bind.buffer = uManageDouble;
+            bind.buffer = c_double;
             bind.buffer_length = length;
-            bind.length = lengPtr;
+            bind.length = lengthPtr;
             bind.is_null = IntPtr.Zero;
 
             return bind;
@@ -247,17 +247,17 @@ namespace TDengineDriver
         {
 
             TAOS_BIND bind = new TAOS_BIND();
-            // IntPtr umanageBinary = Marshal.StringToHGlobalAnsi(val);
-            IntPtr umanageBinary = Marshal.StringToCoTaskMemUTF8(val);
+            // IntPtr unmanagedBinary = Marshal.StringToHGlobalAnsi(val);
+            IntPtr c_str = Marshal.StringToCoTaskMemUTF8(val);
 
             var strToBytes = System.Text.Encoding.UTF8.GetBytes(val);
-            int leng = strToBytes.Length;
+            int length = strToBytes.Length;
             IntPtr lenPtr = Marshal.AllocHGlobal(sizeof(ulong));
-            Marshal.WriteInt64(lenPtr, leng);
+            Marshal.WriteInt64(lenPtr, length);
 
             bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_BINARY;
-            bind.buffer = umanageBinary;
-            bind.buffer_length = leng;
+            bind.buffer = c_str;
+            bind.buffer_length = length;
             bind.length = lenPtr;
             bind.is_null = IntPtr.Zero;
 
@@ -267,17 +267,17 @@ namespace TDengineDriver
         {
             TAOS_BIND bind = new TAOS_BIND();
             var strToBytes = System.Text.Encoding.UTF8.GetBytes(val);
-            // IntPtr umanageNchar = (IntPtr)Marshal.StringToHGlobalAnsi(val);
-            IntPtr umanageNchar = (IntPtr)Marshal.StringToCoTaskMemUTF8(val);
+            // IntPtr unmanagedNchar = (IntPtr)Marshal.StringToHGlobalAnsi(val);
+            IntPtr c_str = (IntPtr)Marshal.StringToCoTaskMemUTF8(val);
 
 
-            int leng = strToBytes.Length;
+            int length = strToBytes.Length;
             IntPtr lenPtr = Marshal.AllocHGlobal(sizeof(ulong));
-            Marshal.WriteInt64(lenPtr, leng);
+            Marshal.WriteInt64(lenPtr, length);
 
             bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_NCHAR;
-            bind.buffer = umanageNchar;
-            bind.buffer_length = leng;
+            bind.buffer = c_str;
+            bind.buffer_length = length;
             bind.length = lenPtr;
             bind.is_null = IntPtr.Zero;
 
@@ -301,17 +301,17 @@ namespace TDengineDriver
         {
 
             TAOS_BIND bind = new TAOS_BIND();
-            IntPtr uManageTs = Marshal.AllocHGlobal(sizeof(long));
-            Marshal.WriteInt64(uManageTs, ts);
+            IntPtr c_long = Marshal.AllocHGlobal(sizeof(long));
+            Marshal.WriteInt64(c_long, ts);
 
             int length = sizeof(long);
-            IntPtr lengPtr = Marshal.AllocHGlobal(4);
-            Marshal.WriteInt32(lengPtr, length);
+            IntPtr lengthPtr = Marshal.AllocHGlobal(4);
+            Marshal.WriteInt32(lengthPtr, length);
 
             bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_TIMESTAMP;
-            bind.buffer = uManageTs;
+            bind.buffer = c_long;
             bind.buffer_length = length;
-            bind.length = lengPtr;
+            bind.length = lengthPtr;
             bind.is_null = IntPtr.Zero;
 
             return bind;

src/connector/C#/src/TDengineDriver/TaosMultiBind.cs

@@ -17,7 +17,7 @@ namespace TDengineDriver
             int byteSize = sizeof(byte);
 
             //TAOS_MULTI_BIND.buffer
-            IntPtr unmanagedBoolArr = Marshal.AllocHGlobal(elementCount * typeSize);
+            IntPtr c_bool_ptr = Marshal.AllocHGlobal(elementCount * typeSize);
             //TAOS_MULTI_BIND.length
             IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
             //TAOS_MULTI_BIND.is_null
@@ -26,7 +26,7 @@ namespace TDengineDriver
             for (int i = 0; i < elementCount; i++)
             {
                 //set TAOS_MULTI_BIND.buffer
-                Marshal.WriteByte(unmanagedBoolArr, typeSize * i, Convert.ToByte(arr[i] ?? false));
+                Marshal.WriteByte(c_bool_ptr, typeSize * i, Convert.ToByte(arr[i] ?? false));
                 //set TAOS_MULTI_BIND.length
                 Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
                 //set TAOS_MULTI_BIND.is_null
@@ -34,7 +34,7 @@ namespace TDengineDriver
             }
             //config TAOS_MULTI_BIND
             multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_BOOL;
-            multiBind.buffer = unmanagedBoolArr;
+            multiBind.buffer = c_bool_ptr;
             multiBind.buffer_length = (ulong)typeSize;
             multiBind.length = lengthArr;
             multiBind.is_null = nullArr;
@@ -53,7 +53,7 @@ namespace TDengineDriver
             int intSize = sizeof(int);
 
             //TAOS_MULTI_BIND.buffer
-            IntPtr unmanagedTintIntArr = Marshal.AllocHGlobal(elementCount);
+            IntPtr c_tinyint_ptr = Marshal.AllocHGlobal(elementCount);
             //TAOS_MULTI_BIND.length
             IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
             //TAOS_MULTI_BIND.is_null
@@ -64,7 +64,7 @@ namespace TDengineDriver
                 Byte[] toByteArr = BitConverter.GetBytes(arr[i] ?? sbyte.MinValue);
 
                 //set TAOS_MULTI_BIND.buffer
-                Marshal.WriteByte(unmanagedTintIntArr, typeSize * i, toByteArr[0]);
+                Marshal.WriteByte(c_tinyint_ptr, typeSize * i, toByteArr[0]);
                 //set TAOS_MULTI_BIND.length
                 Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
                 //set TAOS_MULTI_BIND.is_null
@@ -73,7 +73,7 @@ namespace TDengineDriver
 
             //config TAOS_MULTI_BIND
             multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_TINYINT;
-            multiBind.buffer = unmanagedTintIntArr;
+            multiBind.buffer = c_tinyint_ptr;
             multiBind.buffer_length = (ulong)typeSize;
             multiBind.length = lengthArr;
             multiBind.is_null = nullArr;
@@ -92,7 +92,7 @@ namespace TDengineDriver
             int byteSize = sizeof(byte);
 
             //TAOS_MULTI_BIND.buffer
-            IntPtr unmanagedSmallIntArr = Marshal.AllocHGlobal(elementCount * typeSize);
+            IntPtr c_smallint_ptr = Marshal.AllocHGlobal(elementCount * typeSize);
             //TAOS_MULTI_BIND.length
             IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
             //TAOS_MULTI_BIND.is_null
@@ -101,7 +101,7 @@ namespace TDengineDriver
             for (int i = 0; i < elementCount; i++)
             {
                 //set TAOS_MULTI_BIND.buffer
-                Marshal.WriteInt16(unmanagedSmallIntArr, typeSize * i, arr[i] ?? short.MinValue);
+                Marshal.WriteInt16(c_smallint_ptr, typeSize * i, arr[i] ?? short.MinValue);
                 //set TAOS_MULTI_BIND.length
                 Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
                 //set TAOS_MULTI_BIND.is_null
@@ -110,7 +110,7 @@ namespace TDengineDriver
             }
             //config TAOS_MULTI_BIND
             multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_SMALLINT;
-            multiBind.buffer = unmanagedSmallIntArr;
+            multiBind.buffer = c_smallint_ptr;
             multiBind.buffer_length = (ulong)typeSize;
             multiBind.length = lengthArr;
             multiBind.is_null = nullArr;
@@ -127,7 +127,7 @@ namespace TDengineDriver
             int byteSize = sizeof(byte);
 
             //TAOS_MULTI_BIND.buffer
-            IntPtr intBuff = Marshal.AllocHGlobal(typeSize * elementCount);
+            IntPtr c_int_ptr = Marshal.AllocHGlobal(typeSize * elementCount);
             //TAOS_MULTI_BIND.length
             IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
             //TAOS_MULTI_BIND.is_null
@@ -136,7 +136,7 @@ namespace TDengineDriver
             for (int i = 0; i < elementCount; i++)
             {
                 //set TAOS_MULTI_BIND.buffer
-                Marshal.WriteInt32(intBuff, typeSize * i, arr[i] ?? int.MinValue);
+                Marshal.WriteInt32(c_int_ptr, typeSize * i, arr[i] ?? int.MinValue);
                 //set TAOS_MULTI_BIND.length
                 Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
                 //set TAOS_MULTI_BIND.is_null
@@ -145,7 +145,7 @@ namespace TDengineDriver
             }
             //config TAOS_MULTI_BIND
             multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_INT;
-            multiBind.buffer = intBuff;
+            multiBind.buffer = c_int_ptr;
             multiBind.buffer_length = (ulong)typeSize;
             multiBind.length = lengthArr;
             multiBind.is_null = nullArr;
@@ -162,7 +162,7 @@ namespace TDengineDriver
             int byteSize = sizeof(byte);
 
             //TAOS_MULTI_BIND.buffer
-            IntPtr intBuff = Marshal.AllocHGlobal(typeSize * elementCount);
+            IntPtr c_long_ptr = Marshal.AllocHGlobal(typeSize * elementCount);
             //TAOS_MULTI_BIND.length
             IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
             //TAOS_MULTI_BIND.is_null
@@ -171,7 +171,7 @@ namespace TDengineDriver
             for (int i = 0; i < elementCount; i++)
             {
                 //set TAOS_MULTI_BIND.buffer
-                Marshal.WriteInt64(intBuff, typeSize * i, arr[i] ?? long.MinValue);
+                Marshal.WriteInt64(c_long_ptr, typeSize * i, arr[i] ?? long.MinValue);
                 //set TAOS_MULTI_BIND.length
                 Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
                 //set TAOS_MULTI_BIND.is_null
@@ -181,7 +181,7 @@ namespace TDengineDriver
             }
             //config TAOS_MULTI_BIND
             multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_BIGINT;
-            multiBind.buffer = intBuff;
+            multiBind.buffer = c_long_ptr;
             multiBind.buffer_length = (ulong)typeSize;
             multiBind.length = lengthArr;
             multiBind.is_null = nullArr;
@@ -200,7 +200,7 @@ namespace TDengineDriver
             float[] arrTmp = new float[elementCount];
 
             //TAOS_MULTI_BIND.buffer
-            IntPtr floatBuff = Marshal.AllocHGlobal(typeSize * elementCount);
+            IntPtr c_float_ptr = Marshal.AllocHGlobal(typeSize * elementCount);
             //TAOS_MULTI_BIND.length
             IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
             //TAOS_MULTI_BIND.is_null
@@ -216,11 +216,11 @@ namespace TDengineDriver
                 Marshal.WriteByte(nullArr, byteSize * i, Convert.ToByte(arr[i].Equals(null) ? 1 : 0));
             }
             //set TAOS_MULTI_BIND.buffer
-            Marshal.Copy(arrTmp, 0, floatBuff, elementCount);
+            Marshal.Copy(arrTmp, 0, c_float_ptr, elementCount);
 
             //config TAOS_MULTI_BIND
             multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_FLOAT;
-            multiBind.buffer = floatBuff;
+            multiBind.buffer = c_float_ptr;
             multiBind.buffer_length = (ulong)typeSize;
             multiBind.length = lengthArr;
             multiBind.is_null = nullArr;
@@ -239,7 +239,7 @@ namespace TDengineDriver
             double[] arrTmp = new double[elementCount];
 
             //TAOS_MULTI_BIND.buffer
-            IntPtr doubleBuff = Marshal.AllocHGlobal(typeSize * elementCount);
+            IntPtr c_double_ptr = Marshal.AllocHGlobal(typeSize * elementCount);
             //TAOS_MULTI_BIND.length
             IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
             //TAOS_MULTI_BIND.is_null
@@ -255,11 +255,11 @@ namespace TDengineDriver
                 Marshal.WriteByte(nullArr, byteSize * i, Convert.ToByte(arr[i].Equals(null) ? 1 : 0));
             }
             //set TAOS_MULTI_BIND.buffer
-            Marshal.Copy(arrTmp, 0, doubleBuff, elementCount);
+            Marshal.Copy(arrTmp, 0, c_double_ptr, elementCount);
 
             //config TAOS_MULTI_BIND
             multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_DOUBLE;
-            multiBind.buffer = doubleBuff;
+            multiBind.buffer = c_double_ptr;
             multiBind.buffer_length = (ulong)typeSize;
             multiBind.length = lengthArr;
             multiBind.is_null = nullArr;
@@ -277,7 +277,7 @@ namespace TDengineDriver
             //used to replace null 
 
             //TAOS_MULTI_BIND.buffer
-            IntPtr uTinyIntBuff = Marshal.AllocHGlobal(typeSize * elementCount);
+            IntPtr c_unsigned_tinyint_ptr = Marshal.AllocHGlobal(typeSize * elementCount);
             //TAOS_MULTI_BIND.length
             IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
             //TAOS_MULTI_BIND.is_null
@@ -287,7 +287,7 @@ namespace TDengineDriver
             for (int i = 0; i < elementCount; i++)
             {
                 //set TAOS_MULTI_BIND.buffer
-                Marshal.WriteByte(uTinyIntBuff, typeSize * i, arr[i] ?? byte.MaxValue);
+                Marshal.WriteByte(c_unsigned_tinyint_ptr, typeSize * i, arr[i] ?? byte.MaxValue);
                 //set TAOS_MULTI_BIND.length
                 Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
                 //set TAOS_MULTI_BIND.is_null
@@ -297,7 +297,7 @@ namespace TDengineDriver
 
             //config TAOS_MULTI_BIND
             multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_UTINYINT;
-            multiBind.buffer = uTinyIntBuff;
+            multiBind.buffer = c_unsigned_tinyint_ptr;
             multiBind.buffer_length = (ulong)typeSize;
             multiBind.length = lengthArr;
             multiBind.is_null = nullArr;
@@ -315,7 +315,7 @@ namespace TDengineDriver
             //used to replace null 
 
             //TAOS_MULTI_BIND.buffer
-            IntPtr uSmallIntBuff = Marshal.AllocHGlobal(typeSize * elementCount);
+            IntPtr c_unsigned_smallint_ptr = Marshal.AllocHGlobal(typeSize * elementCount);
             //TAOS_MULTI_BIND.length
             IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
             //TAOS_MULTI_BIND.is_null
@@ -328,7 +328,7 @@ namespace TDengineDriver
                 for (int j = 0; j < byteArr.Length; j++)
                 {
                     //set TAOS_MULTI_BIND.buffer
-                    Marshal.WriteByte(uSmallIntBuff, typeSize * i + j * byteSize, byteArr[j]);
+                    Marshal.WriteByte(c_unsigned_smallint_ptr, typeSize * i + j * byteSize, byteArr[j]);
                 }
                 //set TAOS_MULTI_BIND.length
                 Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
@@ -339,7 +339,7 @@ namespace TDengineDriver
 
             //config TAOS_MULTI_BIND
             multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_USMALLINT;
-            multiBind.buffer = uSmallIntBuff;
+            multiBind.buffer = c_unsigned_smallint_ptr;
             multiBind.buffer_length = (ulong)typeSize;
             multiBind.length = lengthArr;
             multiBind.is_null = nullArr;
@@ -357,7 +357,7 @@ namespace TDengineDriver
             //used to replace null 
 
             //TAOS_MULTI_BIND.buffer
-            IntPtr uIntBuff = Marshal.AllocHGlobal(typeSize * elementCount);
+            IntPtr c_unsigned_int_ptr = Marshal.AllocHGlobal(typeSize * elementCount);
             //TAOS_MULTI_BIND.length
             IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
             //TAOS_MULTI_BIND.is_null
@@ -370,7 +370,7 @@ namespace TDengineDriver
                 for (int j = 0; j < byteArr.Length; j++)
                 {
                     //set TAOS_MULTI_BIND.buffer
-                    Marshal.WriteByte(uIntBuff, typeSize * i + j * byteSize, byteArr[j]);
+                    Marshal.WriteByte(c_unsigned_int_ptr, typeSize * i + j * byteSize, byteArr[j]);
                 }
                 //set TAOS_MULTI_BIND.length
                 Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
@@ -381,7 +381,7 @@ namespace TDengineDriver
 
             //config TAOS_MULTI_BIND
             multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_UINT;
-            multiBind.buffer = uIntBuff;
+            multiBind.buffer = c_unsigned_int_ptr;
             multiBind.buffer_length = (ulong)typeSize;
             multiBind.length = lengthArr;
             multiBind.is_null = nullArr;
@@ -399,7 +399,7 @@ namespace TDengineDriver
             //used to replace null 
 
             //TAOS_MULTI_BIND.buffer
-            IntPtr uBigIntBuff = Marshal.AllocHGlobal(typeSize * elementCount);
+            IntPtr c_unsigned_bigint_ptr = Marshal.AllocHGlobal(typeSize * elementCount);
             //TAOS_MULTI_BIND.length
             IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
             //TAOS_MULTI_BIND.is_null
@@ -412,7 +412,7 @@ namespace TDengineDriver
                 for (int j = 0; j < byteArr.Length; j++)
                 {
                     //set TAOS_MULTI_BIND.buffer
-                    Marshal.WriteByte(uBigIntBuff, typeSize * i + j * byteSize, byteArr[j]);
+                    Marshal.WriteByte(c_unsigned_bigint_ptr, typeSize * i + j * byteSize, byteArr[j]);
                 }
                 //set TAOS_MULTI_BIND.length
                 Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
@@ -423,7 +423,7 @@ namespace TDengineDriver
 
             //config TAOS_MULTI_BIND
             multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_UBIGINT;
-            multiBind.buffer = uBigIntBuff;
+            multiBind.buffer = c_unsigned_bigint_ptr;
             multiBind.buffer_length = (ulong)typeSize;
             multiBind.length = lengthArr;
             multiBind.is_null = nullArr;
@@ -439,7 +439,7 @@ namespace TDengineDriver
             //The size of the buffer is typeSize * elementCount
             //This buffer is used to store TAOS_MULTI_BIND.buffer
             int typeSize = MaxElementLength(arr);
-            //This intSize is used to calcuate buffer size of the struct TAOS_MULTI_BIND's 
+            //This intSize is used to calculate buffer size of the struct TAOS_MULTI_BIND's 
             //length. The buffer is intSize * elementCount,which is used to store TAOS_MULTI_BIND.length
             int intSize = sizeof(int);
             //This byteSize is used to calculate the buffer size of the struct TAOS_MULTI_BIND.is_null
@@ -452,7 +452,7 @@ namespace TDengineDriver
             //TAOS_MULTI_BIND.is_null
             IntPtr nullArr = Marshal.AllocHGlobal(byteSize * elementCount);
             //TAOS_MULTI_BIND.buffer
-            IntPtr uNcharBuff = Marshal.AllocHGlobal(typeSize * elementCount);
+            IntPtr c_char_prt = Marshal.AllocHGlobal(typeSize * elementCount);
 
             for (int i = 0; i < elementCount; i++)
             {
@@ -464,7 +464,7 @@ namespace TDengineDriver
                     for (int j = 0; j < itemLength; j++)
                     {
                         //Read byte after byte
-                        Marshal.WriteByte(uNcharBuff, i * typeSize + j, decodeByte[j]);
+                        Marshal.WriteByte(c_char_prt, i * typeSize + j, decodeByte[j]);
                     }
                 }
                 //Set TAOS_MULTI_BIND.length
@@ -474,7 +474,7 @@ namespace TDengineDriver
             }
             //Config TAOS_MULTI_BIND
             multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_BINARY;
-            multiBind.buffer = uNcharBuff;
+            multiBind.buffer = c_char_prt;
             multiBind.buffer_length = (ulong)typeSize;
             multiBind.length = lengthArr;
             multiBind.is_null = nullArr;
@@ -491,7 +491,7 @@ namespace TDengineDriver
             //The size of the buffer is typeSize * elementCount
             //This buffer is used to store TAOS_MULTI_BIND.buffer
             int typeSize = MaxElementLength(arr);
-            //This intSize is used to calcuate buffer size of the struct TAOS_MULTI_BIND's 
+            //This intSize is used to calculate buffer size of the struct TAOS_MULTI_BIND's 
             //length. The buffer is intSize * elementCount,which is used to store TAOS_MULTI_BIND.length
             int intSize = sizeof(int);
             //This byteSize is used to calculate the buffer size of the struct TAOS_MULTI_BIND.is_null
@@ -503,7 +503,7 @@ namespace TDengineDriver
             //TAOS_MULTI_BIND.is_null
             IntPtr nullArr = Marshal.AllocHGlobal(byteSize * elementCount);
             //TAOS_MULTI_BIND.buffer
-            IntPtr uNcharBuff = Marshal.AllocHGlobal(typeSize * elementCount);
+            IntPtr c_char_prt = Marshal.AllocHGlobal(typeSize * elementCount);
 
             for (int i = 0; i < elementCount; i++)
             {
@@ -515,7 +515,7 @@ namespace TDengineDriver
                     for (int j = 0; j < itemLength; j++)
                     {
                         //Read byte after byte
-                        Marshal.WriteByte(uNcharBuff, i * typeSize + j, decodeByte[j]);
+                        Marshal.WriteByte(c_char_prt, i * typeSize + j, decodeByte[j]);
                     }
                 }
                 //Set TAOS_MULTI_BIND.length
@@ -525,7 +525,7 @@ namespace TDengineDriver
             }
             //Config TAOS_MULTI_BIND
             multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_NCHAR;
-            multiBind.buffer = uNcharBuff;
+            multiBind.buffer = c_char_prt;
             multiBind.buffer_length = (ulong)typeSize;
             multiBind.length = lengthArr;
             multiBind.is_null = nullArr;
@@ -542,7 +542,7 @@ namespace TDengineDriver
             int intSize = sizeof(int);
             int byteSize = sizeof(byte);
             //TAOS_MULTI_BIND.buffer
-            IntPtr unmanagedTsArr = Marshal.AllocHGlobal(typeSize * elementCount);
+            IntPtr c_long_ptr = Marshal.AllocHGlobal(typeSize * elementCount);
             //TAOS_MULTI_BIND.length
             IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
             //TAOS_MULTI_BIND.is_null
@@ -551,7 +551,7 @@ namespace TDengineDriver
             for (int i = 0; i < elementCount; i++)
             {
                 //set TAOS_MULTI_BIND.buffer
-                Marshal.WriteInt64(unmanagedTsArr, typeSize * i, arr[i]);
+                Marshal.WriteInt64(c_long_ptr, typeSize * i, arr[i]);
                 //set TAOS_MULTI_BIND.length
                 Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
                 //set TAOS_MULTI_BIND.is_null
@@ -560,7 +560,7 @@ namespace TDengineDriver
 
             //config TAOS_MULTI_BIND
             multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_TIMESTAMP;
-            multiBind.buffer = unmanagedTsArr;
+            multiBind.buffer = c_long_ptr;
             multiBind.buffer_length = (ulong)typeSize;
             multiBind.length = lengthArr;
             multiBind.is_null = nullArr;

src/connector/C#/src/test/FunctionTest/DataSource.cs

@@ -116,7 +116,7 @@ namespace Test.UtilsTools.DataSource
         }
         // Get the tag data within and string list 
         // Which will be retrieved as a string List
-        private static List<String> GetTagCnData()
+        private static List<String> GetTagCNData()
         {
             List<String> tagData = new List<String>();
             tagData.Add(true.ToString());
@@ -136,7 +136,7 @@ namespace Test.UtilsTools.DataSource
         }
         // A line of data that's without CN character.
         // Which is construct as an TAOS_BIND array
-        public static TAOS_BIND[] GetNtableCNRow()
+        public static TAOS_BIND[] GetNTableCNRow()
         {
             TAOS_BIND[] binds = new TAOS_BIND[15];
             binds[0] = TaosBind.BindTimestamp(1637064040000);
@@ -157,7 +157,7 @@ namespace Test.UtilsTools.DataSource
             return binds;
         }
         //Get and list data that will be insert into table
-        public static List<String> GetNtableCNRowData()
+        public static List<String> GetNTableCNRowData()
         {
             var data = new List<string>{
                 "1637064040000",
@@ -180,16 +180,16 @@ namespace Test.UtilsTools.DataSource
         }
         // Get the data value and tag values which have chinese characters
         // And retrieved as a string list.This is single Line.
-        public static List<String> GetStableCNRowData()
+        public static List<String> GetSTableCNRowData()
         {
-            List<String> columnData = GetNtableCNRowData();
-            List<String> tagData = GetTagCnData();
+            List<String> columnData = GetNTableCNRowData();
+            List<String> tagData = GetTagCNData();
             columnData.AddRange(tagData);
             return columnData;
         }
 
         // A line of data that's without CN character
-        public static TAOS_BIND[] GetNtableRow()
+        public static TAOS_BIND[] GetNTableRow()
         {
             TAOS_BIND[] binds = new TAOS_BIND[15];
             binds[0] = TaosBind.BindTimestamp(1637064040000);
@@ -209,8 +209,8 @@ namespace Test.UtilsTools.DataSource
             binds[14] = TaosBind.BindNil();
             return binds;
         }
-        // A List of data ,use as expectResData. The value is equal to getNtableRow()
-        public static List<String> GetNtableRowData()
+        // A List of data ,use as expectResData. The value is equal to getNTableRow()
+        public static List<String> GetNTableRowData()
         {
             var data = new List<string>{
             "1637064040000",
@@ -232,7 +232,7 @@ namespace Test.UtilsTools.DataSource
             return data;
         }
 
-        // Five lines of data, that is construct as taos_mutli_bind array. 
+        // Five lines of data, that is construct as taos_multi_bind array. 
         // There aren't any CN character
         public static TAOS_MULTI_BIND[] GetMultiBindArr()
         {
@@ -280,8 +280,8 @@ namespace Test.UtilsTools.DataSource
             }
             return rowData;
         }
-        // Five lines of data, that is construct as taos_mutli_bind array. 
-        // There aren some CN characters and letters.
+        // Five lines of data, that is construct as taos_multi_bind array. 
+        // There are some CN characters and letters.
         public static TAOS_MULTI_BIND[] GetMultiBindCNArr()
         {
             TAOS_MULTI_BIND[] mBinds = new TAOS_MULTI_BIND[14];
@@ -332,7 +332,7 @@ namespace Test.UtilsTools.DataSource
         public static List<String> GetMultiBindStableCNRowData()
         {
             List<String> columnData = new List<string>();
-            List<String> tagData = GetTagCnData();
+            List<String> tagData = GetTagCNData();
             for (int i = 0; i < tsArr.Length; i++)
             {
                 columnData.Add(tsArr[i].ToString());
@@ -371,18 +371,18 @@ namespace Test.UtilsTools.DataSource
             TaosBind.FreeTaosBind(binds);
         }
 
-        public static void FreeTaosMBind(TAOS_MULTI_BIND[] mbinds)
+        public static void FreeTaosMBind(TAOS_MULTI_BIND[] mBinds)
         {
-            TaosMultiBind.FreeTaosBind(mbinds);
+            TaosMultiBind.FreeTaosBind(mBinds);
         }
         //Get the TDengineMeta list from the ddl either normal table or stable
-        public static List<TDengineMeta> GetMetaFromDLL(string dllStr)
+        public static List<TDengineMeta> GetMetaFromDDL(string dllStr)
         {
             var expectResMeta = new List<TDengineMeta>();
             //"CREATE TABLE meters(ts TIMESTAMP, current FLOAT, voltage INT, phase FLOAT) TAGS(location BINARY(30), groupId INT);";
-            int bracetInd = dllStr.IndexOf("(");
+            int bracketInd = dllStr.IndexOf("(");
             //(ts TIMESTAMP, current FLOAT, voltage INT, phase FLOAT) TAGS(location BINARY(30), groupId INT);
-            string subDllStr = dllStr.Substring(bracetInd);
+            string subDllStr = dllStr.Substring(bracketInd);
 
             String[] stableSeparators = new String[] { "tags", "TAGS" };
             //(ts TIMESTAMP, current FLOAT, voltage INT, phase FLOAT)

src/connector/C#/src/test/FunctionTest/TaosFeild.cs → src/connector/C#/src/test/FunctionTest/FetchFields.cs

@@ -6,19 +6,19 @@ using Xunit;
 using Test.UtilsTools.ResultSet;
 namespace Cases
 {
-    public class FetchFieldCases
+    public class FetchFieldsCases
     {
         /// <author>xiaolei</author>
-        /// <Name>FetchFieldCases.TestFetchFieldJsonTag</Name>
+        /// <Name>FetchFieldsCases.TestFetchFieldsJsonTag</Name>
         /// <describe>test taos_fetch_fields(), check the meta data</describe>
-        /// <filename>TaosFeild.cs</filename>
+        /// <filename>FetchFields.cs</filename>
         /// <result>pass or failed </result>  
-        [Fact(DisplayName = "FetchFieldCases.TestFetchFieldJsonTag()")]
-        public void TestFetchFieldJsonTag()
+        [Fact(DisplayName = "FetchFieldsCases.TestFetchFieldsJsonTag()")]
+        public void TestFetchFieldsJsonTag()
         {
             IntPtr conn = UtilsTools.TDConnection();
             IntPtr _res = IntPtr.Zero;
-            string tableName = "fetchfeilds";
+            string tableName = "fetch_fields";
             var expectResMeta = new List<TDengineMeta> {
                 UtilsTools.ConstructTDengineMeta("ts", "timestamp"),
                 UtilsTools.ConstructTDengineMeta("b", "bool"),

src/connector/C#/src/test/FunctionTest/InsertCn.cs

@@ -7,15 +7,15 @@ using System.Collections.Generic;
 using Test.UtilsTools.ResultSet;
 namespace Cases
 {
-    public class InsertCnCharacterCases
+    public class InsertCNCases
     {
         /// <author>xiaolei</author>
-        /// <Name>InsertCnCharacterCases.TestInsertCnToNtable</Name>
-        /// <describe>test insert Chinese character into normal table's nchar column</describe>
+        /// <Name>InsertCNCases.TestNTable</Name>
+        /// <describe>Test insert Chinese characters into normal table's nchar column</describe>
         /// <filename>InsertCn.cs</filename>
         /// <result>pass or failed </result>  
-        [Fact(DisplayName = "InsertCnCharacterCases.TestInsertCnToNtable()")]
-        public void TestInsertCnToNtable()
+        [Fact(DisplayName = "InsertCNCases.TestNTable()")]
+        public void TestNTable()
         {
             IntPtr conn = UtilsTools.TDConnection();
             IntPtr _res = IntPtr.Zero;
@@ -37,7 +37,7 @@ namespace Cases
             String insertSql = UtilsTools.ConstructInsertSql(tableName, "", colData, null, 9);
             String selectSql = "select * from " + tableName;
             String dropSql = "drop table " + tableName;
-            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDLL(createTb);
+            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDDL(createTb);
 
             UtilsTools.ExecuteUpdate(conn, dropTb);
             UtilsTools.ExecuteUpdate(conn, createTb);
@@ -64,12 +64,12 @@ namespace Cases
         }
 
         /// <author>xiaolei</author>
-        /// <Name>InsertCnCharacterCases.TestInsertCnToStable</Name>
+        /// <Name>InsertCNCases.TestSTable</Name>
         /// <describe>test insert Chinese character into stable's nchar column,both tag and column</describe>
         /// <filename>InsertCn.cs</filename>
         /// <result>pass or failed </result>  
-        [Fact(DisplayName = "InsertCnCharacterCases.TestInsertCnToStable()")]
-        public void TestInsertCnToStable()
+        [Fact(DisplayName = "InsertCNCases.TestSTable()")]
+        public void TestSTable()
         {
             IntPtr conn = UtilsTools.TDConnection();
             IntPtr _res = IntPtr.Zero;
@@ -84,15 +84,15 @@ namespace Cases
             1637064047000,8,"8&涛思数据taos",
             1637064048000,9,"&涛思数据taos9"
             };
-            var tagData = new List<Object>{1,"涛思数据",};
+            var tagData = new List<Object> { 1, "涛思数据", };
             String dropTb = "drop table if exists " + tableName;
             String createTb = $"create table {tableName} (ts timestamp,v4 int,blob nchar(200))tags(id int,name nchar(50));";
-            String insertSql = UtilsTools.ConstructInsertSql(tableName+"_sub1", tableName, colData, tagData, 9);
+            String insertSql = UtilsTools.ConstructInsertSql(tableName + "_sub1", tableName, colData, tagData, 9);
             String selectSql = "select * from " + tableName;
             String dropSql = "drop table " + tableName;
-            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDLL(createTb);
+            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDDL(createTb);
 
-            List<Object> expectResData = UtilsTools.CombineColAndTagData(colData,tagData,9);
+            List<Object> expectResData = UtilsTools.CombineColAndTagData(colData, tagData, 9);
 
             UtilsTools.ExecuteUpdate(conn, dropTb);
             UtilsTools.ExecuteUpdate(conn, createTb);
@@ -118,12 +118,12 @@ namespace Cases
         }
 
         /// <author>xiaolei</author>
-        /// <Name>InsertCnCharacterCases.TestInsertMutilCnToNtable</Name>
+        /// <Name>InsertCNCases.TestInsertMultiNTable</Name>
         /// <describe>test insert Chinese character into normal table's multiple nchar columns</describe>
         /// <filename>InsertCn.cs</filename>
         /// <result>pass or failed </result> 
-        [Fact(DisplayName = "InsertCnCharacterCases.TestInsertMutilCnToNtable()")]
-        public void TestInsertMutilCnToNtable()
+        [Fact(DisplayName = "InsertCNCases.TestInsertMultiNTable()")]
+        public void TestInsertMultiNTable()
         {
             IntPtr conn = UtilsTools.TDConnection();
             IntPtr _res = IntPtr.Zero;
@@ -140,11 +140,11 @@ namespace Cases
             };
 
             String dropTb = "drop table if exists " + tableName;
-            String createTb = $"create table if not exists {tableName} (ts timestamp,v4 int,blob nchar(200),location nchar(200),city binary(100),coutry binary(200));";
+            String createTb = $"create table if not exists {tableName} (ts timestamp,v4 int,blob nchar(200),location nchar(200),city binary(100),country binary(200));";
             String insertSql = UtilsTools.ConstructInsertSql(tableName, "", colData, null, 9);
             String selectSql = "select * from " + tableName;
             String dropSql = "drop table " + tableName;
-            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDLL(createTb);
+            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDDL(createTb);
 
             UtilsTools.ExecuteUpdate(conn, dropTb);
             UtilsTools.ExecuteUpdate(conn, createTb);
@@ -170,12 +170,12 @@ namespace Cases
         }
 
         /// <author>xiaolei</author>
-        /// <Name>InsertCnCharacterCases.TestInsertMutilCnToStable</Name>
+        /// <Name>InsertCNCases.TestInsertMultiSTable</Name>
         /// <describe>test insert Chinese character into stable's multiple nchar columns</describe>
         /// <filename>InsertCn.cs</filename>
         /// <result>pass or failed </result> 
-        [Fact(DisplayName = "InsertCnCharacterCases.TestInsertMutilCnToStable()")]
-        public void TestInsertMutilCnToStable()
+        [Fact(DisplayName = "InsertCNCases.TestInsertMultiSTable()")]
+        public void TestInsertMultiSTable()
         {
             IntPtr conn = UtilsTools.TDConnection();
             IntPtr _res = IntPtr.Zero;
@@ -190,7 +190,7 @@ namespace Cases
             1637064047000,8,"8&涛思数据taos","incluse阿斯顿发","NewYork","US",
             1637064048000,9,"&涛思数据taos9","123黑化肥werq会挥……&¥%发！afsdfa","NewYork","US",
             };
-            var tagData = new List<Object>{1,"涛思数据","中国北方&南方长江黄河！49wq","tdengine"};
+            var tagData = new List<Object> { 1, "涛思数据", "中国北方&南方长江黄河！49wq", "tdengine" };
             String dropTb = "drop table if exists " + tableName;
             String createTb = $"create table if not exists {tableName} (ts timestamp," +
             $"v4 int," +
@@ -203,12 +203,12 @@ namespace Cases
             $"name nchar(50)," +
             $"addr nchar(200)," +
             $"en_name binary(200));";
-            String insertSql = UtilsTools.ConstructInsertSql(tableName+"_sub1", tableName, colData, tagData, 9);
+            String insertSql = UtilsTools.ConstructInsertSql(tableName + "_sub1", tableName, colData, tagData, 9);
             String selectSql = "select * from " + tableName;
             String dropSql = "drop table " + tableName;
-            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDLL(createTb);
+            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDDL(createTb);
 
-            List<Object> expectResData = UtilsTools.CombineColAndTagData(colData,tagData,9);
+            List<Object> expectResData = UtilsTools.CombineColAndTagData(colData, tagData, 9);
 
             UtilsTools.ExecuteUpdate(conn, dropTb);
             UtilsTools.ExecuteUpdate(conn, createTb);

src/connector/C#/src/test/FunctionTest/QueryAsync.cs

 using TDengineDriver;
 using Test.UtilsTools;
 using System;
-using System.Runtime.InteropServices;
 using Xunit;
 using System.Collections.Generic;
 using Test.UtilsTools.DataSource;
@@ -47,7 +46,7 @@ namespace Cases
             };
             var tagData = new List<Object> { 1, "tag_one", "标签壹" };
             String insertSql = UtilsTools.ConstructInsertSql(tableName + "_s01", tableName, colData, tagData, 3);
-            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDLL(createSql);
+            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDDL(createSql);
             List<Object> expectResData = UtilsTools.CombineColAndTagData(colData, tagData, 3);
 
             var querySql = $"select * from {tableName}";
@@ -133,7 +132,7 @@ namespace Cases
             var colDataActual = colData.GetRange(8, 8);
             var tagData = new List<Object> { 1, "tag_one", "标签壹" };
             String insertSql = UtilsTools.ConstructInsertSql(tableName + "_s01", tableName, colData, tagData, 3);
-            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDLL(createSql);
+            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDDL(createSql);
             List<Object> expectResData = UtilsTools.CombineColAndTagData(colDataActual, tagData, 1);
             colDataActual.ForEach((item) => { Console.Write("{0}\t", item); });
 
@@ -228,7 +227,7 @@ namespace Cases
 
             String insertSql1 = UtilsTools.ConstructInsertSql(tableName + "_s01", tableName, colData1, tagData1, 3);
             String insertSql2 = UtilsTools.ConstructInsertSql(tableName + "_s02", tableName, colData1, tagData2, 3);
-            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDLL(createSql);
+            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDDL(createSql);
             List<Object> expectResData = UtilsTools.CombineColAndTagData(colData1, tagData1, 3);
 
             UtilsTools.ExecuteUpdate(conn, dropSql);

src/connector/C#/src/test/FunctionTest/StmtNormalTable.cs

@@ -10,14 +10,14 @@ namespace Cases
     public class NormalTableStmtCases
     {
         /// <author>xiaolei</author>
-        /// <Name>NormalTableStmtCases.TestBindSingleLineCn</Name>
+        /// <Name>NormalTableStmtCases.TestBindSingleLineCN</Name>
         /// <describe>Test stmt insert single line of chinese character into normal table by column after column </describe>
         /// <filename>StmtNormalTable.cs</filename>
         /// <result>pass or failed </result>  
-        [Fact(DisplayName = "NormalTableStmtCases.TestBindSingleLineCn()")]
-        public void TestBindSingleLineCn()
+        [Fact(DisplayName = "NormalTableStmtCases.TestBindSingleLineCN()")]
+        public void TestBindSingleLineCN()
         {
-            string tableName = "normal_tablestmt_cases_test_bind_single_line_cn";
+            string tableName = "ntb_stmt_cases_test_bind_single_line_cn";
             String createTb = $"create table if not exists {tableName} (" +
                                 "ts timestamp," +
                                 "tt tinyint," +
@@ -38,9 +38,9 @@ namespace Cases
             string insertSql = "insert into ? values(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
             string dropSql = $"drop table if exists {tableName}";
             string querySql = "select * from " + tableName;
-            TAOS_BIND[] _valuesRow = DataSource.GetNtableCNRow();
-            List<string> expectResData = DataSource.GetNtableCNRowData();
-            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDLL(createTb);
+            TAOS_BIND[] _valuesRow = DataSource.GetNTableCNRow();
+            List<string> expectResData = DataSource.GetNTableCNRowData();
+            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDDL(createTb);
 
             IntPtr conn = UtilsTools.TDConnection();
             UtilsTools.ExecuteUpdate(conn, dropSql);
@@ -76,14 +76,14 @@ namespace Cases
         }
 
         /// <author>xiaolei</author>
-        /// <Name>NormalTableStmtCases.TestBindColumnCn</Name>
+        /// <Name>NormalTableStmtCases.TestBindColumnCN</Name>
         /// <describe>Test stmt insert single line of chinese character into normal table by column after column </describe>
         /// <filename>StmtNormalTable.cs</filename>
         /// <result>pass or failed </result> 
-        [Fact(DisplayName = "NormalTableStmtCases.TestBindColumnCn()")]
-        public void TestBindColumnCn()
+        [Fact(DisplayName = "NormalTableStmtCases.TestBindColumnCN()")]
+        public void TestBindColumnCN()
         {
-            string tableName = "normal_tablestmt_cases_test_bind_column_cn";
+            string tableName = "ntb_stmt_cases_test_bind_column_cn";
             String createTb = $"create table if not exists {tableName} " +
                                 " (" +
                                 "ts timestamp," +
@@ -104,8 +104,8 @@ namespace Cases
             String insertSql = "insert into ?  values(?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
             String dropSql = $"drop table if exists {tableName} ";
             List<string> expectResData = DataSource.GetMultiBindCNRowData();
-            TAOS_MULTI_BIND[] mbind = DataSource.GetMultiBindCNArr();
-            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDLL(createTb);
+            TAOS_MULTI_BIND[] mBind = DataSource.GetMultiBindCNArr();
+            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDDL(createTb);
 
             IntPtr conn = UtilsTools.TDConnection();
             UtilsTools.ExecuteUpdate(conn, dropSql);
@@ -115,26 +115,26 @@ namespace Cases
             StmtUtilTools.StmtPrepare(stmt, insertSql);
             StmtUtilTools.SetTableName(stmt, tableName);
 
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[0], 0);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[1], 1);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[2], 2);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[3], 3);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[4], 4);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[5], 5);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[6], 6);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[7], 7);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[8], 8);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[9], 9);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[10], 10);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[11], 11);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[12], 12);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[13], 13);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBind[0], 0);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBind[1], 1);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBind[2], 2);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBind[3], 3);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBind[4], 4);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBind[5], 5);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBind[6], 6);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBind[7], 7);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBind[8], 8);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBind[9], 9);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBind[10], 10);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBind[11], 11);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBind[12], 12);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBind[13], 13);
 
             StmtUtilTools.AddBatch(stmt);
             StmtUtilTools.StmtExecute(stmt);
             StmtUtilTools.StmtClose(stmt);
 
-            DataSource.FreeTaosMBind(mbind);
+            DataSource.FreeTaosMBind(mBind);
 
             string querySql = "select * from " + tableName;
             IntPtr res = UtilsTools.ExecuteQuery(conn, querySql);
@@ -158,15 +158,15 @@ namespace Cases
         }
 
         /// <author>xiaolei</author>
-        /// <Name>NormalTableStmtCases.TestBindMultiLineCn</Name>
+        /// <Name>NormalTableStmtCases.TestBindMultiLineCN</Name>
         /// <describe>Test stmt insert single line of chinese character into normal table by column after column </describe>
         /// <filename>StmtNormalTable.cs</filename>
         /// <result>pass or failed </result> 
-        [Fact(DisplayName = "NormalTableStmtCases.TestBindMultiLineCn()")]
-        public void TestBindMultiLineCn()
+        [Fact(DisplayName = "NormalTableStmtCases.TestBindMultiLineCN()")]
+        public void TestBindMultiLineCN()
         {
-            string tableName = "normal_tablestmt_cases_test_bind_multi_lines_cn";
-            TAOS_MULTI_BIND[] mbind = DataSource.GetMultiBindCNArr();
+            string tableName = "ntb_stmt_cases_test_bind_multi_lines_cn";
+            TAOS_MULTI_BIND[] mBind = DataSource.GetMultiBindCNArr();
             String createTb = $"create table if not exists {tableName} " +
                                 " (" +
                                 "ts timestamp," +
@@ -187,7 +187,7 @@ namespace Cases
             String insertSql = "insert into ?  values(?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
             String dropSql = $"drop table if exists {tableName} ";
             List<string> expectResData = DataSource.GetMultiBindCNRowData();
-            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDLL(createTb);
+            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDDL(createTb);
 
             IntPtr conn = UtilsTools.TDConnection(); ;
             UtilsTools.ExecuteUpdate(conn, dropSql);
@@ -196,12 +196,12 @@ namespace Cases
             IntPtr stmt = StmtUtilTools.StmtInit(conn);
             StmtUtilTools.StmtPrepare(stmt, insertSql);
             StmtUtilTools.SetTableName(stmt, tableName);
-            StmtUtilTools.BindParamBatch(stmt, mbind);
+            StmtUtilTools.BindParamBatch(stmt, mBind);
             StmtUtilTools.AddBatch(stmt);
             StmtUtilTools.StmtExecute(stmt);
             StmtUtilTools.StmtClose(stmt);
 
-            DataSource.FreeTaosMBind(mbind);
+            DataSource.FreeTaosMBind(mBind);
 
             string querySql = "select * from " + tableName;
             IntPtr res = UtilsTools.ExecuteQuery(conn, querySql);
@@ -228,13 +228,13 @@ namespace Cases
 
         /// <author>xiaolei</author>
         /// <Name>NormalTableStmtCases.TestBindSingleLine</Name>
-        /// <describe>Test stmt insert sinle line data into normal table</describe>
+        /// <describe>Test stmt insert single line data into normal table</describe>
         /// <filename>StmtNormalTable.cs</filename>
         /// <result>pass or failed </result>
         [Fact(DisplayName = "NormalTableStmtCases.TestBindSingleLine")]
         public void TestBindSingleLine()
         {
-            string tableName = "normal_tablestmt_cases_test_bind_single_line";
+            string tableName = "ntb_stmt_cases_test_bind_single_line";
             String createTb = $"create table if not exists {tableName} (" +
                                 "ts timestamp," +
                                 "tt tinyint," +
@@ -255,9 +255,9 @@ namespace Cases
             string insertSql = "insert into ? values(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
             string dropSql = $"drop table if exists {tableName}";
             string querySql = "select * from " + tableName;
-            TAOS_BIND[] valuesRow = DataSource.GetNtableRow();
-            List<string> expectResData = DataSource.GetNtableRowData();
-            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDLL(createTb);
+            TAOS_BIND[] valuesRow = DataSource.GetNTableRow();
+            List<string> expectResData = DataSource.GetNTableRowData();
+            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDDL(createTb);
 
             IntPtr conn = UtilsTools.TDConnection();
             UtilsTools.ExecuteQuery(conn, dropSql);
@@ -296,7 +296,7 @@ namespace Cases
         }
 
         /// <author>xiaolei</author>
-        /// <Name>NtableMutipleLine.TestBindMultiLine</Name>
+        /// <Name>NTableMultipleLine.TestBindMultiLine</Name>
         /// <describe>Test stmt insert multiple rows of data into normal table</describe>
         /// <filename>StmtNormalTable.cs</filename>
         /// <result>pass or failed </result> 
@@ -324,8 +324,8 @@ namespace Cases
             String insertSql = "insert into ?  values(?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
             String dropSql = $"drop table if exists {tableName} ";
             List<string> expectResData = DataSource.GetMultiBindResData();
-            TAOS_MULTI_BIND[] mbind = DataSource.GetMultiBindArr();
-            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDLL(createTb);
+            TAOS_MULTI_BIND[] mBind = DataSource.GetMultiBindArr();
+            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDDL(createTb);
 
             IntPtr conn = UtilsTools.TDConnection();
             UtilsTools.ExecuteUpdate(conn, dropSql);
@@ -335,11 +335,11 @@ namespace Cases
             IntPtr stmt = StmtUtilTools.StmtInit(conn);
             StmtUtilTools.StmtPrepare(stmt, insertSql);
             StmtUtilTools.SetTableName(stmt, tableName);
-            StmtUtilTools.BindParamBatch(stmt, mbind);
+            StmtUtilTools.BindParamBatch(stmt, mBind);
             StmtUtilTools.AddBatch(stmt);
             StmtUtilTools.StmtExecute(stmt);
             StmtUtilTools.StmtClose(stmt);
-            DataSource.FreeTaosMBind(mbind);
+            DataSource.FreeTaosMBind(mBind);
 
             string querySql = "select * from " + tableName;
             IntPtr res = UtilsTools.ExecuteQuery(conn, querySql);
@@ -365,14 +365,14 @@ namespace Cases
         }
 
         /// <author>xiaolei</author>
-        /// <Name>NtableColumnByColumn.TestBindColumnCn</Name>
+        /// <Name>NormalTableStmtCases.TestBindColumnCn</Name>
         /// <describe>Test stmt insert multiple rows of data into normal table by column after column </describe>
         /// <filename>StmtNormalTable.cs</filename>
         /// <result>pass or failed </result> 
         [Fact(DisplayName = "NormalTableStmtCases.TestBindColumn()")]
         public void TestBindColumn()
         {
-            string tableName = "normal_tablestmt_cases_test_bind_column_cn";
+            string tableName = "ntb_stmt_cases_test_bind_column_cn";
             DataSource data = new DataSource();
             String createTb = $"create table if not exists {tableName} " +
                                 " (" +
@@ -394,8 +394,8 @@ namespace Cases
             String insertSql = "insert into ?  values(?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
             String dropSql = $"drop table if exists {tableName} ";
             List<string> expectResData = DataSource.GetMultiBindResData();
-            TAOS_MULTI_BIND[] mbind = DataSource.GetMultiBindArr();
-            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDLL(createTb);
+            TAOS_MULTI_BIND[] mBinds = DataSource.GetMultiBindArr();
+            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDDL(createTb);
 
 
             IntPtr conn = UtilsTools.TDConnection();
@@ -406,26 +406,26 @@ namespace Cases
             StmtUtilTools.StmtPrepare(stmt, insertSql);
             StmtUtilTools.SetTableName(stmt, tableName);
 
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[0], 0);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[1], 1);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[2], 2);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[3], 3);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[4], 4);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[5], 5);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[6], 6);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[7], 7);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[8], 8);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[9], 9);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[10], 10);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[11], 11);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[12], 12);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[13], 13);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[0], 0);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[1], 1);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[2], 2);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[3], 3);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[4], 4);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[5], 5);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[6], 6);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[7], 7);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[8], 8);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[9], 9);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[10], 10);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[11], 11);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[12], 12);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[13], 13);
 
             StmtUtilTools.AddBatch(stmt);
             StmtUtilTools.StmtExecute(stmt);
             StmtUtilTools.StmtClose(stmt);
 
-            DataSource.FreeTaosMBind(mbind);
+            DataSource.FreeTaosMBind(mBinds);
 
             string querySql = "select * from " + tableName;
             IntPtr res = UtilsTools.ExecuteQuery(conn, querySql);

src/connector/C#/src/test/FunctionTest/StmtQuery.cs

@@ -5,7 +5,7 @@ using Test.UtilsTools.DataSource;
 
 namespace Cases
 {
-    public class StmtStableQuery
+    public class StmtSTableQuery
     {
         public void Test(IntPtr conn, string tableName)
         {
@@ -26,7 +26,7 @@ namespace Cases
         }
     }
 
-    public class StmtNtableQuery
+    public class StmtNTableQuery
     {
         public void Test(IntPtr conn, string tableName)
         {

src/connector/C#/src/test/FunctionTest/StmtStable.cs

@@ -11,14 +11,14 @@ namespace Cases
     public class StableStmtCases
     {
         /// <author>xiaolei</author>
-        /// <Name>StableStmtCases.TestBindSingleLineCn</Name>
+        /// <Name>StableStmtCases.TestBindSingleLineCN</Name>
         /// <describe>Test stmt insert single line of chinese character into stable by column after column </describe>
         /// <filename>StmtSTable.cs</filename>
         /// <result>pass or failed </result> 
-        [Fact(DisplayName = "StableStmtCases.TestBindSingleLineCn()")]
-        public void TestBindSingleLineCn()
+        [Fact(DisplayName = "StableStmtCases.TestBindSingleLineCN()")]
+        public void TestBindSingleLineCN()
         {
-            string tableName = "stable_stmt_cases_test_bind_single_line_cn";
+            string tableName = "stb_stmt_cases_test_bind_single_line_cn";
             String createSql = $"create stable if not exists {tableName} " +
                                 " (ts timestamp," +
                                 "v1 tinyint," +
@@ -52,10 +52,10 @@ namespace Cases
                                 ");";
             String insertSql = $"insert into ? using  {tableName} tags(?,?,?,?,?,?,?,?,?,?,?,?,?) values(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
             String dropSql = $"drop table if exists {tableName} ;";
-            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDLL(createSql);
-            List<String> expectResData = DataSource.GetStableCNRowData();
+            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDDL(createSql);
+            List<String> expectResData = DataSource.GetSTableCNRowData();
             TAOS_BIND[] tags = DataSource.GetCNTags();
-            TAOS_BIND[] binds = DataSource.GetNtableCNRow();
+            TAOS_BIND[] binds = DataSource.GetNTableCNRow();
 
             IntPtr conn = UtilsTools.TDConnection();
             UtilsTools.ExecuteUpdate(conn, dropSql);
@@ -95,14 +95,14 @@ namespace Cases
         }
 
         /// <author>xiaolei</author>
-        /// <Name>StableStmtCases.TestBindColumnCn</Name>
+        /// <Name>StableStmtCases.TestBindColumnCN</Name>
         /// <describe>Test stmt insert single line of chinese character into stable by column after column </describe>
         /// <filename>StmtSTable.cs</filename>
         /// <result>pass or failed </result>
-        [Fact(DisplayName = "StableStmtCases.TestBindColumnCn()")]
-        public void TestBindColumnCn()
+        [Fact(DisplayName = "StableStmtCases.TestBindColumnCN()")]
+        public void TestBindColumnCN()
         {
-            string tableName = "stable_stmt_cases_test_bindcolumn_cn";
+            string tableName = "stb_stmt_cases_test_bindcolumn_cn";
             String createSql = $"create stable  if not exists {tableName} " +
                                 "(ts timestamp," +
                                 "b bool," +
@@ -137,8 +137,8 @@ namespace Cases
             String insertSql = "insert into ? using " + tableName + " tags(?,?,?,?,?,?,?,?,?,?,?,?,?) values(?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
             String dropSql = $"drop table if exists {tableName};";
             TAOS_BIND[] tags = DataSource.GetCNTags();
-            TAOS_MULTI_BIND[] mbind = DataSource.GetMultiBindCNArr();
-            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDLL(createSql);
+            TAOS_MULTI_BIND[] mBinds = DataSource.GetMultiBindCNArr();
+            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDDL(createSql);
             List<String> expectResData = DataSource.GetMultiBindStableCNRowData();
 
             IntPtr conn = UtilsTools.TDConnection();
@@ -149,27 +149,27 @@ namespace Cases
             StmtUtilTools.StmtPrepare(stmt, insertSql);
             StmtUtilTools.SetTableNameTags(stmt, tableName + "_t1", tags);
 
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[0], 0);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[1], 1);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[2], 2);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[3], 3);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[4], 4);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[5], 5);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[6], 6);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[7], 7);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[8], 8);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[9], 9);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[10], 10);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[11], 11);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[12], 12);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[13], 13);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[0], 0);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[1], 1);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[2], 2);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[3], 3);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[4], 4);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[5], 5);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[6], 6);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[7], 7);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[8], 8);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[9], 9);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[10], 10);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[11], 11);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[12], 12);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[13], 13);
 
             StmtUtilTools.AddBatch(stmt);
             StmtUtilTools.StmtExecute(stmt);
             StmtUtilTools.StmtClose(stmt);
 
             DataSource.FreeTaosBind(tags);
-            DataSource.FreeTaosMBind(mbind);
+            DataSource.FreeTaosMBind(mBinds);
 
             string querySql = "select * from " + tableName;
             IntPtr res = UtilsTools.ExecuteQuery(conn, querySql);
@@ -195,14 +195,14 @@ namespace Cases
         }
 
         /// <author>xiaolei</author>
-        /// <Name>StableStmtCases.TestBindMultiLineCn</Name>
+        /// <Name>StableStmtCases.TestBindMultiLineCN</Name>
         /// <describe>Test stmt insert single line of chinese character into stable by column after column </describe>
         /// <filename>StmtSTable.cs</filename>
         /// <result>pass or failed </result>
-        [Fact(DisplayName = "StableStmtCases.TestBindMultiLineCn()")]
-        public void TestBindMultiLineCn()
+        [Fact(DisplayName = "StableStmtCases.TestBindMultiLineCN()")]
+        public void TestBindMultiLineCN()
         {
-            string tableName = "stable_stmt_cases_test_bind_multi_line_cn";
+            string tableName = "stb_stmt_cases_test_bind_multi_line_cn";
             String createSql = $"create stable  if not exists {tableName} " +
                                 "(ts timestamp," +
                                 "b bool," +
@@ -237,8 +237,8 @@ namespace Cases
             String insertSql = "insert into ? using " + tableName + " tags(?,?,?,?,?,?,?,?,?,?,?,?,?) values(?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
             String dropSql = $"drop table if exists {tableName};";
             TAOS_BIND[] tags = DataSource.GetCNTags();
-            TAOS_MULTI_BIND[] mbind = DataSource.GetMultiBindCNArr();
-            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDLL(createSql);
+            TAOS_MULTI_BIND[] mBinds = DataSource.GetMultiBindCNArr();
+            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDDL(createSql);
             List<String> expectResData = DataSource.GetMultiBindStableCNRowData();
 
             IntPtr conn = UtilsTools.TDConnection();
@@ -248,13 +248,13 @@ namespace Cases
             IntPtr stmt = StmtUtilTools.StmtInit(conn);
             StmtUtilTools.StmtPrepare(stmt, insertSql);
             StmtUtilTools.SetTableNameTags(stmt, tableName + "_t1", tags);
-            StmtUtilTools.BindParamBatch(stmt, mbind);
+            StmtUtilTools.BindParamBatch(stmt, mBinds);
             StmtUtilTools.AddBatch(stmt);
             StmtUtilTools.StmtExecute(stmt);
 
             StmtUtilTools.StmtClose(stmt);
             DataSource.FreeTaosBind(tags);
-            DataSource.FreeTaosMBind(mbind);
+            DataSource.FreeTaosMBind(mBinds);
 
             string querySql = "select * from " + tableName;
             IntPtr res = UtilsTools.ExecuteQuery(conn, querySql);
@@ -285,7 +285,7 @@ namespace Cases
         [Fact(DisplayName = "StableStmtCases.TestBindMultiLine()")]
         public void TestBindMultiLine()
         {
-            string tableName = "stable_stmt_cases_test_bind_multi_line";
+            string tableName = "stb_stmt_cases_test_bind_multi_line";
             string createSql = $"create stable  if not exists {tableName} " +
                                 "(ts timestamp," +
                                 "b bool," +
@@ -320,8 +320,8 @@ namespace Cases
             String insertSql = "insert into ? using " + tableName + " tags(?,?,?,?,?,?,?,?,?,?,?,?,?) values(?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
             String dropSql = $"drop table if exists {tableName};";
             TAOS_BIND[] tags = DataSource.GetTags();
-            TAOS_MULTI_BIND[] mbind = DataSource.GetMultiBindArr();
-            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDLL(createSql);
+            TAOS_MULTI_BIND[] mBinds = DataSource.GetMultiBindArr();
+            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDDL(createSql);
             List<String> expectResData = DataSource.GetMultiBindStableRowData();
 
             IntPtr conn = UtilsTools.TDConnection();
@@ -331,13 +331,13 @@ namespace Cases
             IntPtr stmt = StmtUtilTools.StmtInit(conn);
             StmtUtilTools.StmtPrepare(stmt, insertSql);
             StmtUtilTools.SetTableNameTags(stmt, tableName + "_t1", tags);
-            StmtUtilTools.BindParamBatch(stmt, mbind);
+            StmtUtilTools.BindParamBatch(stmt, mBinds);
             StmtUtilTools.AddBatch(stmt);
             StmtUtilTools.StmtExecute(stmt);
             StmtUtilTools.StmtClose(stmt);
 
             DataSource.FreeTaosBind(tags);
-            DataSource.FreeTaosMBind(mbind);
+            DataSource.FreeTaosMBind(mBinds);
 
             string querySql = "select * from " + tableName;
             IntPtr res = UtilsTools.ExecuteQuery(conn, querySql);
@@ -373,7 +373,7 @@ namespace Cases
         [Fact(DisplayName = "StableStmtCases.TestBindColumn()")]
         public void TestBindColumn()
         {
-            string tableName = "stable_stmt_cases_test_bindcolumn";
+            string tableName = "stb_stmt_cases_test_bindcolumn";
             string createSql = $"create stable  if not exists {tableName} " +
                                 "(ts timestamp," +
                                 "b bool," +
@@ -408,8 +408,8 @@ namespace Cases
             String insertSql = "insert into ? using " + tableName + " tags(?,?,?,?,?,?,?,?,?,?,?,?,?) values(?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
             String dropSql = $"drop table if exists {tableName};";
             TAOS_BIND[] tags = DataSource.GetTags();
-            TAOS_MULTI_BIND[] mbind = DataSource.GetMultiBindArr();
-            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDLL(createSql);
+            TAOS_MULTI_BIND[] mBinds = DataSource.GetMultiBindArr();
+            List<TDengineMeta> expectResMeta = DataSource.GetMetaFromDDL(createSql);
             List<String> expectResData = DataSource.GetMultiBindStableRowData();
 
             IntPtr conn = UtilsTools.TDConnection();
@@ -420,27 +420,27 @@ namespace Cases
             StmtUtilTools.StmtPrepare(stmt, insertSql);
 
             StmtUtilTools.SetTableNameTags(stmt, tableName + "_t1", tags);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[0], 0);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[1], 1);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[2], 2);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[3], 3);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[4], 4);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[5], 5);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[6], 6);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[7], 7);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[8], 8);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[9], 9);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[10], 10);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[11], 11);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[12], 12);
-            StmtUtilTools.BindSingleParamBatch(stmt, mbind[13], 13);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[0], 0);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[1], 1);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[2], 2);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[3], 3);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[4], 4);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[5], 5);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[6], 6);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[7], 7);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[8], 8);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[9], 9);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[10], 10);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[11], 11);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[12], 12);
+            StmtUtilTools.BindSingleParamBatch(stmt, mBinds[13], 13);
 
             StmtUtilTools.AddBatch(stmt);
             StmtUtilTools.StmtExecute(stmt);
             StmtUtilTools.StmtClose(stmt);
 
             DataSource.FreeTaosBind(tags);
-            DataSource.FreeTaosMBind(mbind);
+            DataSource.FreeTaosMBind(mBinds);
 
             string querySql = "select * from " + tableName;
             IntPtr res = UtilsTools.ExecuteQuery(conn, querySql);

src/connector/C#/src/test/FunctionTest/lib/ResultSetUtils.cs

 using System;
 using TDengineDriver;
-using System.Runtime.InteropServices;
-using System.Text;
 using System.Collections.Generic;
 namespace Test.UtilsTools.ResultSet
 {
@@ -17,10 +15,10 @@ namespace Test.UtilsTools.ResultSet
             resultData = UtilsTools.GetResData(res);
         }
 
-        public ResultSet(List<TDengineMeta> metas, List<String> datas)
+        public ResultSet(List<TDengineMeta> meta, List<String> data)
         {
-            resultMeta = metas;
-            resultData = datas;
+            resultMeta = meta;
+            resultData = data;
         }
 
         public List<String> GetResultData()
@@ -35,5 +33,4 @@ namespace Test.UtilsTools.ResultSet
 
     }
 
-
 }
\ No newline at end of file

src/connector/C#/src/test/FunctionTest/lib/TestExeOrderer.cs

@@ -36,7 +36,7 @@ namespace XUnit.Case.Orderers
             IDictionary<TKey, TValue> dictionary, TKey key)
             where TKey : struct
             where TValue : new() =>
-            dictionary.TryGetValue(key, out TValue? result)
+            dictionary.TryGetValue(key, out TValue result)
                 ? result
                 : (dictionary[key] = new TValue());
     }

src/connector/C#/src/test/FunctionTest/lib/Utils.cs

@@ -14,11 +14,11 @@ namespace Test.UtilsTools
         static string password = "taosdata";
         static string db = "";
         static short port = 0;
-        //get a tdengine connection
+        //get a TDengine connection
         public static IntPtr TDConnection()
         {
-            TDengine.Options((int)TDengineInitOption.TDDB_OPTION_CONFIGDIR, GetConfigPath());
-            TDengine.Options((int)TDengineInitOption.TDDB_OPTION_SHELL_ACTIVITY_TIMER, "60");
+            TDengine.Options((int)TDengineInitOption.TSDB_OPTION_CONFIGDIR, GetConfigPath());
+            TDengine.Options((int)TDengineInitOption.TSDB_OPTION_SHELL_ACTIVITY_TIMER, "60");
             TDengine.Init();
             IntPtr conn = TDengine.Connect(ip, user, password, db, port);
             // UtilsTools.ExecuteUpdate(conn, "drop database if  exists csharp");
@@ -99,16 +99,16 @@ namespace Test.UtilsTools
                 ExitProgram();
             }
 
-            List<TDengineMeta> metas = GetResField(res);
-            int fieldCount = metas.Count;
+            List<TDengineMeta> metaList = GetResField(res);
+            int fieldCount = metaList.Count;
 
             IntPtr rowdata;
-            List<string> datas = QueryRes(res, metas);
-            for (int i = 0; i < metas.Count; i++)
+            List<string> dataList = QueryRes(res, metaList);
+            for (int i = 0; i < metaList.Count; i++)
             {
-                for (int j = 0; j < datas.Count; j++)
+                for (int j = 0; j < dataList.Count; j++)
                 {
-                    Console.Write(" {0} \t|", datas[j]);
+                    Console.Write(" {0} \t|", dataList[j]);
                 }
                 Console.WriteLine("");
             }
@@ -125,10 +125,10 @@ namespace Test.UtilsTools
                 ExitProgram();
             }
 
-            List<TDengineMeta> metas = GetResField(res);
+            List<TDengineMeta> metaList = GetResField(res);
             result.Add(colName);
 
-            dataRaw = QueryRes(res, metas);
+            dataRaw = QueryRes(res, metaList);
             result.Add(dataRaw);
 
             if (TDengine.ErrorNo(res) != 0)
@@ -159,7 +159,7 @@ namespace Test.UtilsTools
             {
                 if (TDengine.Close(conn) == 0)
                 {
-                    Console.WriteLine("close connection sucess");
+                    Console.WriteLine("close connection success");
                 }
                 else
                 {
@@ -169,8 +169,8 @@ namespace Test.UtilsTools
         }
         public static List<TDengineMeta> GetResField(IntPtr res)
         {
-            List<TDengineMeta> metas = TDengine.FetchFields(res);
-            return metas;
+            List<TDengineMeta> metaList = TDengine.FetchFields(res);
+            return metaList;
         }
         public static void AssertEqual(string expectVal, string actualVal)
         {
@@ -274,11 +274,11 @@ namespace Test.UtilsTools
             return _meta;
         }
 
-        private static List<string> QueryRes(IntPtr res, List<TDengineMeta> metas)
+        private static List<string> QueryRes(IntPtr res, List<TDengineMeta> meta)
         {
             IntPtr taosRow;
             List<string> dataRaw = new List<string>();
-            int fieldCount = metas.Count;
+            int fieldCount = meta.Count;
             while ((taosRow = TDengine.FetchRows(res)) != IntPtr.Zero)
             {
                 dataRaw.AddRange(FetchRow(taosRow, res));
@@ -294,7 +294,7 @@ namespace Test.UtilsTools
         // Generate insert sql for the with the coldata and tag data 
         public static string ConstructInsertSql(string table, string stable, List<Object> colData, List<Object> tagData, int numOfRows)
         {
-            int numofFileds = colData.Count / numOfRows;
+            int numOfFields = colData.Count / numOfRows;
             StringBuilder insertSql;
 
             if (stable == "")
@@ -339,7 +339,7 @@ namespace Test.UtilsTools
                     insertSql.Append(colData[i]);
                 }
 
-                if ((i + 1) % numofFileds == 0 && (i + 1) != colData.Count)
+                if ((i + 1) % numOfFields == 0 && (i + 1) != colData.Count)
                 {
                     insertSql.Append(")(");
                 }
@@ -500,8 +500,8 @@ namespace Test.UtilsTools
             {
                 ExitProgram();
             }
-            List<TDengineMeta> metas = GetResField(res);
-            dataRaw = QueryRes(res, metas);
+            List<TDengineMeta> meta = GetResField(res);
+            dataRaw = QueryRes(res, meta);
             return dataRaw;
         }
     }

src/connector/C#/src/test/XUnitTest/TestTDengineMeta.cs

@@ -8,7 +8,7 @@ namespace TDengineDriver.Test
     {
         /// <author>xiaolei</author>
         /// <Name>TestTDengineMeta.TestTypeNameBool</Name>
-        /// <describe>Unit test for oject TDengineDriver.TDengineMeta's bool meta info</describe>
+        /// <describe>Unit test for object TDengineDriver.TDengineMeta's bool meta info</describe>
         /// <filename>TestTDengineMeta.cs</filename>
         /// <result>pass or failed </result>
         [Fact]
@@ -24,7 +24,7 @@ namespace TDengineDriver.Test
         }
         /// <author>xiaolei</author>
         /// <Name>TestTDengineMeta.TestTypeNameTINYINT</Name>
-        /// <describe>Unit test for oject TDengineDriver.TDengineMeta's TinnyInt's meta info</describe>
+        /// <describe>Unit test for object TDengineDriver.TDengineMeta's TinnyInt's meta info</describe>
         /// <filename>TestTDengineMeta.cs</filename>
         /// <result>pass or failed </result>
         [Fact]
@@ -40,7 +40,7 @@ namespace TDengineDriver.Test
         }
         /// <author>xiaolei</author>
         /// <Name>TestTDengineMeta.TestTypeNameSMALLINT</Name>
-        /// <describe>Unit test for oject TDengineDriver.TDengineMeta's SMALLINT's meta info</describe>
+        /// <describe>Unit test for object TDengineDriver.TDengineMeta's SMALLINT's meta info</describe>
         /// <filename>TestTDengineMeta.cs</filename>
         /// <result>pass or failed </result>
         [Fact]
@@ -56,7 +56,7 @@ namespace TDengineDriver.Test
         }
         /// <author>xiaolei</author>
         /// <Name>TestTDengineMeta.TestTypeNameINT</Name>
-        /// <describe>Unit test for oject TDengineDriver.TDengineMeta's INT's meta info</describe>
+        /// <describe>Unit test for object TDengineDriver.TDengineMeta's INT's meta info</describe>
         /// <filename>TestTDengineMeta.cs</filename>
         /// <result>pass or failed </result>
         [Fact]
@@ -72,7 +72,7 @@ namespace TDengineDriver.Test
         }
         /// <author>xiaolei</author>
         /// <Name>TestTDengineMeta.TestTypeNameBIGINT</Name>
-        /// <describe>Unit test for oject TDengineDriver.TDengineMeta's BIGINT's meta info</describe>
+        /// <describe>Unit test for object TDengineDriver.TDengineMeta's BIGINT's meta info</describe>
         /// <filename>TestTDengineMeta.cs</filename>
         /// <result>pass or failed </result>
         [Fact]
@@ -88,7 +88,7 @@ namespace TDengineDriver.Test
         }
         /// <author>xiaolei</author>
         /// <Name>TestTDengineMeta.TestTypeNameUTINYINT</Name>
-        /// <describe>Unit test for oject TDengineDriver.TDengineMeta's TINYINT UNSIGNED's meta info</describe>
+        /// <describe>Unit test for object TDengineDriver.TDengineMeta's TINYINT UNSIGNED's meta info</describe>
         /// <filename>TestTDengineMeta.cs</filename>
         /// <result>pass or failed </result>
         [Fact]
@@ -104,7 +104,7 @@ namespace TDengineDriver.Test
         }
         /// <author>xiaolei</author>
         /// <Name>TestTDengineMeta.TestTypeNameUSMALLINT</Name>
-        /// <describe>Unit test for oject TDengineDriver.TDengineMeta's SMALLINT UNSIGNED's meta info</describe>
+        /// <describe>Unit test for object TDengineDriver.TDengineMeta's SMALLINT UNSIGNED's meta info</describe>
         /// <filename>TestTDengineMeta.cs</filename>
         /// <result>pass or failed </result>
         [Fact]
@@ -120,7 +120,7 @@ namespace TDengineDriver.Test
         }
         /// <author>xiaolei</author>
         /// <Name>TestTDengineMeta.TestTypeNameUINT</Name>
-        /// <describe>Unit test for oject TDengineDriver.TDengineMeta's INT UNSIGNED's meta info</describe>
+        /// <describe>Unit test for object TDengineDriver.TDengineMeta's INT UNSIGNED's meta info</describe>
         /// <filename>TestTDengineMeta.cs</filename>
         /// <result>pass or failed </result>
         [Fact]
@@ -136,7 +136,7 @@ namespace TDengineDriver.Test
         }
         /// <author>xiaolei</author>
         /// <Name>TestTDengineMeta.TestTypeNameUBIGINT</Name>
-        /// <describe>Unit test for oject TDengineDriver.TDengineMeta's BIGINT UNSIGNED's meta info</describe>
+        /// <describe>Unit test for object TDengineDriver.TDengineMeta's BIGINT UNSIGNED's meta info</describe>
         /// <filename>TestTDengineMeta.cs</filename>
         /// <result>pass or failed </result>
         [Fact]
@@ -152,7 +152,7 @@ namespace TDengineDriver.Test
         }
         /// <author>xiaolei</author>
         /// <Name>TestTDengineMeta.TestTypeNameFLOAT</Name>
-        /// <describe>Unit test for oject TDengineDriver.TDengineMeta's FLOAT's meta info</describe>
+        /// <describe>Unit test for object TDengineDriver.TDengineMeta's FLOAT's meta info</describe>
         /// <filename>TestTDengineMeta.cs</filename>
         /// <result>pass or failed </result>
         [Fact]
@@ -168,7 +168,7 @@ namespace TDengineDriver.Test
         }
         /// <author>xiaolei</author>
         /// <Name>TestTDengineMeta.TestTypeNameDOUBLE</Name>
-        /// <describe>Unit test for oject TDengineDriver.TDengineMeta's DOUBLE's meta info</describe>
+        /// <describe>Unit test for object TDengineDriver.TDengineMeta's DOUBLE's meta info</describe>
         /// <filename>TestTDengineMeta.cs</filename>
         /// <result>pass or failed </result>
         [Fact]
@@ -184,7 +184,7 @@ namespace TDengineDriver.Test
         }
         /// <author>xiaolei</author>
         /// <Name>TestTDengineMeta.TestTypeNameSTRING</Name>
-        /// <describe>Unit test for oject TDengineDriver.TDengineMeta's BINARY's meta info</describe>
+        /// <describe>Unit test for object TDengineDriver.TDengineMeta's BINARY's meta info</describe>
         /// <filename>TestTDengineMeta.cs</filename>
         /// <result>pass or failed </result>
         [Fact]
@@ -200,7 +200,7 @@ namespace TDengineDriver.Test
         }
         /// <author>xiaolei</author>
         /// <Name>TestTDengineMeta.TestTypeNameTIMESTAMP</Name>
-        /// <describe>Unit test for oject TDengineDriver.TDengineMeta's TIMESTAMP's meta info</describe>
+        /// <describe>Unit test for object TDengineDriver.TDengineMeta's TIMESTAMP's meta info</describe>
         /// <filename>TestTDengineMeta.cs</filename>
         /// <result>pass or failed </result>
         [Fact]
@@ -216,7 +216,7 @@ namespace TDengineDriver.Test
         }
         /// <author>xiaolei</author>
         /// <Name>TestTDengineMeta.TestTypeNameNCHAR</Name>
-        /// <describe>Unit test for oject TDengineDriver.TDengineMeta's NCHAR's meta info</describe>
+        /// <describe>Unit test for object TDengineDriver.TDengineMeta's NCHAR's meta info</describe>
         /// <filename>TestTDengineMeta.cs</filename>
         /// <result>pass or failed </result>
         [Fact]
@@ -232,7 +232,7 @@ namespace TDengineDriver.Test
         }
         /// <author>xiaolei</author>
         /// <Name>TestTDengineMeta.TestTypeNameUndefined</Name>
-        /// <describe>Unit test for oject TDengineDriver.TDengineMeta's undefine's meta info</describe>
+        /// <describe>Unit test for object TDengineDriver.TDengineMeta's undefine's meta info</describe>
         /// <filename>TestTDengineMeta.cs</filename>
         /// <result>pass or failed </result>
         [Fact]

tests/develop-test/5-taos-tools/taosdump/taosdumpTestTypeBinary.py

@@ -98,10 +98,13 @@ class TDTestCase:
         tdSql.checkData(0, 0, 't2')
         tdSql.checkData(1, 0, 't1')
 
-        tdSql.query("select btag from st")
-        tdSql.checkRows(2)
+        tdSql.query("select btag from st where tbname = 't1'")
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, "test")
+
+        tdSql.query("select btag from st where tbname = 't2'")
+        tdSql.checkRows(1)
         tdSql.checkData(0, 0, None)
-        tdSql.checkData(1, 0, "test")
 
         tdSql.query("select * from st where btag = 'test'")
         tdSql.checkRows(2)