Merge pull request #12107 from taosdata/feature/qnode

feat: stmt query api

source/client/src/clientStmt.c

@@ -649,6 +649,19 @@ int stmtGetParamNum(TAOS_STMT *stmt, int *nums) {
 
   STMT_ERR_RET(stmtSwitchStatus(pStmt, STMT_FETCH_FIELDS));
 
+  if (pStmt->bInfo.needParse && pStmt->sql.runTimes && pStmt->sql.type > 0 && STMT_TYPE_MULTI_INSERT != pStmt->sql.type) {
+    pStmt->bInfo.needParse = false;
+  }
+
+  if (pStmt->exec.pRequest && STMT_TYPE_QUERY == pStmt->sql.type && pStmt->sql.runTimes) {
+    taos_free_result(pStmt->exec.pRequest);
+    pStmt->exec.pRequest = NULL;
+  }
+  
+  if (NULL == pStmt->exec.pRequest) {
+    STMT_ERR_RET(buildRequest(pStmt->taos, pStmt->sql.sqlStr, pStmt->sql.sqlLen, &pStmt->exec.pRequest));
+  }
+
   if (pStmt->bInfo.needParse) {
     STMT_ERR_RET(stmtParseSql(pStmt));
   }
@@ -658,8 +671,11 @@ int stmtGetParamNum(TAOS_STMT *stmt, int *nums) {
       STMT_ERR_RET(getQueryPlan(pStmt->exec.pRequest, pStmt->sql.pQuery, &pStmt->sql.nodeList));
       pStmt->sql.pQueryPlan = pStmt->exec.pRequest->body.pDag;
       pStmt->exec.pRequest->body.pDag = NULL;
+      STMT_ERR_RET(stmtBackupQueryFields(pStmt));
+    } else {
+      STMT_ERR_RET(stmtRestoreQueryFields(pStmt));
     }
-
+    
     *nums = taosArrayGetSize(pStmt->sql.pQueryPlan->pPlaceholderValues);
   } else {
     STMT_ERR_RET(stmtFetchColFields(stmt, nums, NULL));

source/libs/scalar/src/sclvector.c

@@ -297,6 +297,22 @@ static FORCE_INLINE void varToNchar(char* buf, SScalarParam* pOut, int32_t rowIn
   taosMemoryFree(t);
 }
 
+static FORCE_INLINE void ncharToVar(char* buf, SScalarParam* pOut, int32_t rowIndex) {
+  int32_t inputLen = varDataLen(buf);
+
+  char* t = taosMemoryCalloc(1, inputLen + VARSTR_HEADER_SIZE);
+  int32_t len  = taosUcs4ToMbs((TdUcs4 *)varDataVal(buf), varDataLen(buf), varDataVal(t));
+  if (len < 0) {
+    taosMemoryFree(t);
+    return;
+  }
+  varDataSetLen(t, len);
+
+  colDataAppend(pOut->columnData, rowIndex, t, false);
+  taosMemoryFree(t);
+}
+
+
 //TODO opt performance, tmp is not needed.
 int32_t vectorConvertFromVarData(const SScalarParam* pIn, SScalarParam* pOut, int32_t inType, int32_t outType) {
   int32_t bufSize = pIn->columnData->info.bytes;
@@ -313,6 +329,10 @@ int32_t vectorConvertFromVarData(const SScalarParam* pIn, SScalarParam* pOut, in
     func = varToUnsigned;
   } else if (IS_FLOAT_TYPE(outType)) {
     func = varToFloat;
+  } else if (outType == TSDB_DATA_TYPE_BINARY) {   // nchar -> binary
+    ASSERT(inType == TSDB_DATA_TYPE_NCHAR);
+    func = ncharToVar;
+    vton = true;
   } else if (outType == TSDB_DATA_TYPE_NCHAR) {   // binary -> nchar
     ASSERT(inType == TSDB_DATA_TYPE_VARCHAR);
     func = varToNchar;
@@ -608,7 +628,7 @@ int8_t gConvertTypes[TSDB_DATA_TYPE_BLOB+1][TSDB_DATA_TYPE_BLOB+1] = {
 /*BIGI*/   0,   0,   0,   0,   0,   0,   6,   7,   7,   0,   7,   5,   5,   5,   7,   0,   7,   0,   0,
 /*FLOA*/   0,   0,   0,   0,   0,   0,   0,   7,   7,   6,   7,   6,   6,   6,   6,   0,   7,   0,   0,
 /*DOUB*/   0,   0,   0,   0,   0,   0,   0,   0,   7,   7,   7,   7,   7,   7,   7,   0,   7,   0,   0,
-/*VARC*/   0,   0,   0,   0,   0,   0,   0,   0,   0,   9,   0,   7,   7,   7,   7,   0,   0,   0,   0,
+/*VARC*/   0,   0,   0,   0,   0,   0,   0,   0,   0,   9,   8,   7,   7,   7,   7,   0,   0,   0,   0,
 /*TIME*/   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   9,   9,   9,   9,   7,   0,   7,   0,   0,
 /*NCHA*/   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   7,   7,   7,   7,   0,   0,   0,   0,
 /*UTIN*/   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   12,  13,  14,  0,   7,   0,   0,

tests/script/api/batchprepare.c

@@ -11,8 +11,8 @@
 
 int32_t shortColList[] = {TSDB_DATA_TYPE_TIMESTAMP, TSDB_DATA_TYPE_INT};
 int32_t fullColList[] = {TSDB_DATA_TYPE_TIMESTAMP, TSDB_DATA_TYPE_BOOL, TSDB_DATA_TYPE_TINYINT, TSDB_DATA_TYPE_UTINYINT, TSDB_DATA_TYPE_SMALLINT, TSDB_DATA_TYPE_USMALLINT, TSDB_DATA_TYPE_INT, TSDB_DATA_TYPE_UINT, TSDB_DATA_TYPE_BIGINT, TSDB_DATA_TYPE_UBIGINT, TSDB_DATA_TYPE_FLOAT, TSDB_DATA_TYPE_DOUBLE, TSDB_DATA_TYPE_BINARY, TSDB_DATA_TYPE_NCHAR};
-int32_t bindColTypeList[] = {TSDB_DATA_TYPE_TIMESTAMP, TSDB_DATA_TYPE_NCHAR, TSDB_DATA_TYPE_BOOL};
-int32_t optrIdxList[] = {2, 11, 6};
+int32_t bindColTypeList[] = {TSDB_DATA_TYPE_TIMESTAMP, TSDB_DATA_TYPE_SMALLINT, TSDB_DATA_TYPE_DOUBLE};
+int32_t optrIdxList[] = {0, 1, 2};
 
 typedef struct {
   char*   oper;
@@ -169,8 +169,8 @@ typedef struct {
   int32_t  caseRunNum;           // total run case num
 } CaseCtrl;
 
-#if 1
-CaseCtrl gCaseCtrl = {
+#if 0
+CaseCtrl gCaseCtrl = { // default
   .bindNullNum = 0,
   .prepareStb = false,
   .printCreateTblSql = false,
@@ -186,23 +186,43 @@ CaseCtrl gCaseCtrl = {
   .checkParamNum = false,
   .printRes = true,
   .runTimes = 0,
-//  .caseIdx = -1,
-//  .caseNum = -1,
+  .caseIdx = -1,
+  .caseNum = -1,
   .caseRunIdx = -1,
-//  .caseRunNum = -1,
-
+  .caseRunNum = -1,
+};
+#endif
 
-//  .optrIdxListNum = tListLen(optrIdxList),
-//  .optrIdxList = optrIdxList,
-//  .bindColTypeNum = tListLen(bindColTypeList),
-//  .bindColTypeList = bindColTypeList,
+#if 0
+CaseCtrl gCaseCtrl = {  // query case with specified col&oper
+  .bindNullNum = 0,
+  .prepareStb = false,
+  .printCreateTblSql = false,
+  .printQuerySql = true,
+  .printStmtSql = true,
+  .rowNum = 0,
+  .bindColNum = 0,
+  .bindRowNum = 0,
+  .bindColTypeNum = 0,
+  .bindColTypeList = NULL,
+  .optrIdxListNum = 0,
+  .optrIdxList = NULL,
+  .checkParamNum = false,
+  .printRes = true,
+  .runTimes = 0,
+  .caseRunIdx = -1,
+  .optrIdxListNum = 0,
+  .optrIdxList = NULL,
+  .bindColTypeNum = 0,
+  .bindColTypeList = NULL,
   .caseIdx = 22,
   .caseNum = 1,
   .caseRunNum = 1,
-
 };
-#else
-CaseCtrl gCaseCtrl = {
+#endif
+
+#if 1
+CaseCtrl gCaseCtrl = {  // query case with specified col&oper
   .bindNullNum = 0,
   .prepareStb = false,
   .printCreateTblSql = false,
@@ -211,17 +231,22 @@ CaseCtrl gCaseCtrl = {
   .rowNum = 0,
   .bindColNum = 0,
   .bindRowNum = 0,
-  .bindColTypeNum = tListLen(bindColTypeList),
-  .bindColTypeList = bindColTypeList,
-  .checkParamNum = false,
+  .bindColTypeNum = 0,
+  .bindColTypeList = NULL,
+  .optrIdxListNum = 0,
+  .optrIdxList = NULL,
+  .checkParamNum = true,
   .printRes = true,
   .runTimes = 0,
-  .caseIdx = 2,
-  .caseNum = 1,
   .caseRunIdx = -1,
+  .optrIdxListNum = tListLen(optrIdxList),
+  .optrIdxList = optrIdxList,
+  .bindColTypeNum = tListLen(bindColTypeList),
+  .bindColTypeList = bindColTypeList,
+  .caseIdx = 22,
+  .caseNum = 1,
   .caseRunNum = 1,
 };
-
 #endif
 
 int32_t taosGetTimeOfDay(struct timeval *tv) {
@@ -437,6 +462,29 @@ void generateQuerySQL(BindData *data, int32_t tblIdx) {
   }  
 }
 
+void generateErrorSQL(BindData *data, int32_t tblIdx) {
+  int32_t len = 0;
+  data->sql = taosMemoryCalloc(1, 1024);
+  
+  switch(tblIdx) {
+    case 0:
+      len = sprintf(data->sql, "insert into %s%d values (?, 1)", bpTbPrefix, tblIdx);
+      break;
+    case 1:
+      len = sprintf(data->sql, "select * from ?");
+      break;
+    case 2:
+      len = sprintf(data->sql, "select * from %s%d where ? = ?", bpTbPrefix, tblIdx);
+      break;
+    default:
+      len = sprintf(data->sql, "select count(*) from %s%d group by ?", bpTbPrefix, tblIdx);
+      break;    
+  }
+
+  if (gCaseCtrl.printStmtSql) {
+    printf("\tSTMT SQL: %s\n", data->sql);
+  }  
+}
 
 void generateDataType(BindData *data, int32_t bindIdx, int32_t colIdx, int32_t *dataType) {
   if (bindIdx < gCurCase->bindColNum) {
@@ -687,6 +735,8 @@ int32_t prepareQueryData(BindData *data, int32_t tblIdx) {
 }
 
 
+
+
 void destroyData(BindData *data) {
   taosMemoryFree(data->tsData);
   taosMemoryFree(data->boolData);
@@ -1329,6 +1379,7 @@ int insertMPMETest1(TAOS_STMT *stmt, TAOS *taos) {
   return 0;
 }
 
+/* select * from table */
 int querySUBTTest1(TAOS_STMT *stmt, TAOS *taos) {
   BindData data = {0};
 
@@ -1374,6 +1425,74 @@ int querySUBTTest1(TAOS_STMT *stmt, TAOS *taos) {
   return 0;
 }
 
+/* value in query sql */
+int querySUBTTest2(TAOS_STMT *stmt, TAOS *taos) {
+  BindData data = {0};
+
+  for (int32_t t = 0; t< gCurCase->tblNum; ++t) {
+    memset(&data, 0, sizeof(data));
+    prepareQueryData(&data, t);
+
+    int code = taos_stmt_prepare(stmt, data.sql, 0);
+    if (code != 0){
+      printf("!!!failed to execute taos_stmt_prepare. error:%s\n", taos_stmt_errstr(stmt));
+      exit(1);
+    }
+
+    for (int32_t n = 0; n< (gCurCase->rowNum/gCurCase->bindRowNum); ++n) {
+      bpCheckIsInsert(stmt, 0);
+
+      if (gCaseCtrl.checkParamNum) {
+        bpCheckParamNum(stmt);
+      }
+      
+      if (bpBindParam(stmt, data.pBind + n * gCurCase->bindColNum)) {
+        exit(1);
+      }
+      
+      if (taos_stmt_add_batch(stmt)) {
+        printf("!!!taos_stmt_add_batch error:%s\n", taos_stmt_errstr(stmt));
+        exit(1);
+      }
+
+      if (taos_stmt_execute(stmt) != 0) {
+        printf("!!!taos_stmt_execute error:%s\n", taos_stmt_errstr(stmt));
+        exit(1);
+      }
+
+      bpCheckQueryResult(stmt, taos, data.sql, data.pBind + n * gCurCase->bindColNum);    
+    }
+    
+    bpCheckIsInsert(stmt, 0);
+
+    destroyData(&data);
+  }
+
+  return 0;
+}
+
+
+int errorSQLTest1(TAOS_STMT *stmt, TAOS *taos) {
+  BindData data = {0};
+
+  for (int32_t t = 0; t< gCurCase->tblNum; ++t) {
+    memset(&data, 0, sizeof(data));
+    generateErrorSQL(&data, t);
+
+    int code = taos_stmt_prepare(stmt, data.sql, 0);
+    if (code != 0){
+      printf("*taos_stmt_prepare error as expected, error:%s\n", taos_stmt_errstr(stmt));
+    } else {
+      printf("!!!taos_stmt_prepare succeed, which should be error\n");
+      exit(1);
+    }
+
+    destroyData(&data);
+  }
+
+  return 0;
+}
+
 
 #if 0
 
@@ -1398,6 +1517,72 @@ int stmt_funcb_autoctb1(TAOS_STMT *stmt) {
   TAOS_BIND *tags = taosMemoryCalloc(1, sizeof(TAOS_BIND) * 9 * 1);
   TAOS_MULTI_BIND *params = taosMemoryCalloc(1, sizeof(TAOS_MULTI_BIND) * 1*10);
 
+  unsigned long long starttime = taosGetTimestampUs();
+
+  char *sql = "insert into ? using stb1 tags(?,?,?,?,?,?,?,?,?) values(?,?,?,?,?,?,?,?,?,?)";
+  int code = taos_stmt_prepare(stmt, sql, 0);
+  if (code != 0){
+    printf("failed to execute taos_stmt_prepare. code:0x%x\n", code);
+    exit(1);
+  }
+
+  int id = 0;
+  for (int zz = 0; zz < 1; zz++) {
+    char buf[32];
+    sprintf(buf, "m%d", zz);
+    code = taos_stmt_set_tbname_tags(stmt, buf, tags);
+    if (code != 0){
+      printf("failed to execute taos_stmt_set_tbname_tags. code:0x%x\n", code);
+    }  
+
+    taos_stmt_bind_param_batch(stmt, params + id * 10);
+    taos_stmt_add_batch(stmt);
+  }
+
+  if (taos_stmt_execute(stmt) != 0) {
+    printf("failed to execute insert statement.\n");
+    exit(1);
+  }
+
+  ++id;
+
+  unsigned long long endtime = taosGetTimestampUs();
+  printf("insert total %d records, used %u seconds, avg:%u useconds\n", 10, (endtime-starttime)/1000000UL, (endtime-starttime)/(10));
+
+  taosMemoryFree(v.ts);  
+  taosMemoryFree(lb);
+  taosMemoryFree(params);
+  taosMemoryFree(is_null);
+  taosMemoryFree(no_null);
+  taosMemoryFree(tags);
+
+  return 0;
+}
+
+
+
+
+//1 tables 10 records
+int stmt_funcb_autoctb2(TAOS_STMT *stmt) {
+  struct {
+      int64_t *ts;
+      int8_t b[10];
+      int8_t v1[10];
+      int16_t v2[10];
+      int32_t v4[10];
+      int64_t v8[10];
+      float f4[10];
+      double f8[10];
+      char bin[10][40];
+  } v = {0};
+
+  v.ts = taosMemoryMalloc(sizeof(int64_t) * 1 * 10);
+  
+  int *lb = taosMemoryMalloc(10 * sizeof(int));
+
+  TAOS_BIND *tags = taosMemoryCalloc(1, sizeof(TAOS_BIND) * 9 * 1);
+  TAOS_MULTI_BIND *params = taosMemoryCalloc(1, sizeof(TAOS_MULTI_BIND) * 1*10);
+
 //  int one_null = 1;
   int one_not_null = 0;
   
@@ -1547,7 +1732,7 @@ int stmt_funcb_autoctb1(TAOS_STMT *stmt) {
 
   unsigned long long starttime = taosGetTimestampUs();
 
-  char *sql = "insert into ? using stb1 tags(?,?,?,?,?,?,?,?,?) values(?,?,?,?,?,?,?,?,?,?)";
+  char *sql = "insert into ? using stb1 tags(1,true,2,3,4,5.0,6.0,'a','b') values(?,?,?,?,?,?,?,?,?,?)";
   int code = taos_stmt_prepare(stmt, sql, 0);
   if (code != 0){
     printf("failed to execute taos_stmt_prepare. code:0x%x\n", code);
@@ -1590,8 +1775,9 @@ int stmt_funcb_autoctb1(TAOS_STMT *stmt) {
 
 
 
+
 //1 tables 10 records
-int stmt_funcb_autoctb2(TAOS_STMT *stmt) {
+int stmt_funcb_autoctb3(TAOS_STMT *stmt) {
   struct {
       int64_t *ts;
       int8_t b[10];
@@ -1711,56 +1897,31 @@ int stmt_funcb_autoctb2(TAOS_STMT *stmt) {
 
 
   for (int i = 0; i < 1; ++i) {
-    tags[i+0].buffer_type = TSDB_DATA_TYPE_INT;
-    tags[i+0].buffer = v.v4;
+    tags[i+0].buffer_type = TSDB_DATA_TYPE_BOOL;
+    tags[i+0].buffer = v.b;
     tags[i+0].is_null = &one_not_null;
     tags[i+0].length = NULL;
 
-    tags[i+1].buffer_type = TSDB_DATA_TYPE_BOOL;
-    tags[i+1].buffer = v.b;
+    tags[i+1].buffer_type = TSDB_DATA_TYPE_SMALLINT;
+    tags[i+1].buffer = v.v2;
     tags[i+1].is_null = &one_not_null;
     tags[i+1].length = NULL;
 
-    tags[i+2].buffer_type = TSDB_DATA_TYPE_TINYINT;
-    tags[i+2].buffer = v.v1;
+    tags[i+2].buffer_type = TSDB_DATA_TYPE_FLOAT;
+    tags[i+2].buffer = v.f4;
     tags[i+2].is_null = &one_not_null;
     tags[i+2].length = NULL;
 
-    tags[i+3].buffer_type = TSDB_DATA_TYPE_SMALLINT;
-    tags[i+3].buffer = v.v2;
+    tags[i+3].buffer_type = TSDB_DATA_TYPE_BINARY;
+    tags[i+3].buffer = v.bin;
     tags[i+3].is_null = &one_not_null;
-    tags[i+3].length = NULL;
-
-    tags[i+4].buffer_type = TSDB_DATA_TYPE_BIGINT;
-    tags[i+4].buffer = v.v8;
-    tags[i+4].is_null = &one_not_null;
-    tags[i+4].length = NULL;
-
-    tags[i+5].buffer_type = TSDB_DATA_TYPE_FLOAT;
-    tags[i+5].buffer = v.f4;
-    tags[i+5].is_null = &one_not_null;
-    tags[i+5].length = NULL;
-
-    tags[i+6].buffer_type = TSDB_DATA_TYPE_DOUBLE;
-    tags[i+6].buffer = v.f8;
-    tags[i+6].is_null = &one_not_null;
-    tags[i+6].length = NULL;
-
-    tags[i+7].buffer_type = TSDB_DATA_TYPE_BINARY;
-    tags[i+7].buffer = v.bin;
-    tags[i+7].is_null = &one_not_null;
-    tags[i+7].length = (uintptr_t *)lb;
-
-    tags[i+8].buffer_type = TSDB_DATA_TYPE_NCHAR;
-    tags[i+8].buffer = v.bin;
-    tags[i+8].is_null = &one_not_null;
-    tags[i+8].length = (uintptr_t *)lb;
+    tags[i+3].length = (uintptr_t *)lb;
   }
 
 
   unsigned long long starttime = taosGetTimestampUs();
 
-  char *sql = "insert into ? using stb1 tags(1,true,2,3,4,5.0,6.0,'a','b') values(?,?,?,?,?,?,?,?,?,?)";
+  char *sql = "insert into ? using stb1 tags(1,?,2,?,4,?,6.0,?,'b') values(?,?,?,?,?,?,?,?,?,?)";
   int code = taos_stmt_prepare(stmt, sql, 0);
   if (code != 0){
     printf("failed to execute taos_stmt_prepare. code:0x%x\n", code);
@@ -1804,8 +1965,10 @@ int stmt_funcb_autoctb2(TAOS_STMT *stmt) {
 
 
 
+
+
 //1 tables 10 records
-int stmt_funcb_autoctb3(TAOS_STMT *stmt) {
+int stmt_funcb_autoctb4(TAOS_STMT *stmt) {
   struct {
       int64_t *ts;
       int8_t b[10];
@@ -1823,7 +1986,7 @@ int stmt_funcb_autoctb3(TAOS_STMT *stmt) {
   int *lb = taosMemoryMalloc(10 * sizeof(int));
 
   TAOS_BIND *tags = taosMemoryCalloc(1, sizeof(TAOS_BIND) * 9 * 1);
-  TAOS_MULTI_BIND *params = taosMemoryCalloc(1, sizeof(TAOS_MULTI_BIND) * 1*10);
+  TAOS_MULTI_BIND *params = taosMemoryCalloc(1, sizeof(TAOS_MULTI_BIND) * 1*5);
 
 //  int one_null = 1;
   int one_not_null = 0;
@@ -1845,7 +2008,7 @@ int stmt_funcb_autoctb3(TAOS_STMT *stmt) {
     memset(v.bin[i], '0'+i%10, 40);
   }
   
-  for (int i = 0; i < 10; i+=10) {
+  for (int i = 0; i < 5; i+=5) {
     params[i+0].buffer_type = TSDB_DATA_TYPE_TIMESTAMP;
     params[i+0].buffer_length = sizeof(int64_t);
     params[i+0].buffer = &v.ts[10*i/10];
@@ -1860,200 +2023,9 @@ int stmt_funcb_autoctb3(TAOS_STMT *stmt) {
     params[i+1].is_null = is_null;
     params[i+1].num = 10;
 
-    params[i+2].buffer_type = TSDB_DATA_TYPE_TINYINT;
-    params[i+2].buffer_length = sizeof(int8_t);
-    params[i+2].buffer = v.v1;
-    params[i+2].length = NULL;
-    params[i+2].is_null = is_null;
-    params[i+2].num = 10;
-
-    params[i+3].buffer_type = TSDB_DATA_TYPE_SMALLINT;
-    params[i+3].buffer_length = sizeof(int16_t);
-    params[i+3].buffer = v.v2;
-    params[i+3].length = NULL;
-    params[i+3].is_null = is_null;
-    params[i+3].num = 10;
-
-    params[i+4].buffer_type = TSDB_DATA_TYPE_INT;
-    params[i+4].buffer_length = sizeof(int32_t);
-    params[i+4].buffer = v.v4;
-    params[i+4].length = NULL;
-    params[i+4].is_null = is_null;
-    params[i+4].num = 10;
-
-    params[i+5].buffer_type = TSDB_DATA_TYPE_BIGINT;
-    params[i+5].buffer_length = sizeof(int64_t);
-    params[i+5].buffer = v.v8;
-    params[i+5].length = NULL;
-    params[i+5].is_null = is_null;
-    params[i+5].num = 10;
-
-    params[i+6].buffer_type = TSDB_DATA_TYPE_FLOAT;
-    params[i+6].buffer_length = sizeof(float);
-    params[i+6].buffer = v.f4;
-    params[i+6].length = NULL;
-    params[i+6].is_null = is_null;
-    params[i+6].num = 10;
-
-    params[i+7].buffer_type = TSDB_DATA_TYPE_DOUBLE;
-    params[i+7].buffer_length = sizeof(double);
-    params[i+7].buffer = v.f8;
-    params[i+7].length = NULL;
-    params[i+7].is_null = is_null;
-    params[i+7].num = 10;
-
-    params[i+8].buffer_type = TSDB_DATA_TYPE_BINARY;
-    params[i+8].buffer_length = 40;
-    params[i+8].buffer = v.bin;
-    params[i+8].length = lb;
-    params[i+8].is_null = is_null;
-    params[i+8].num = 10;
-
-    params[i+9].buffer_type = TSDB_DATA_TYPE_BINARY;
-    params[i+9].buffer_length = 40;
-    params[i+9].buffer = v.bin;
-    params[i+9].length = lb;
-    params[i+9].is_null = is_null;
-    params[i+9].num = 10;
-    
-  }
-
-  int64_t tts = 1591060628000;
-  for (int i = 0; i < 10; ++i) {
-    v.ts[i] = tts + i;
-  }
-
-
-  for (int i = 0; i < 1; ++i) {
-    tags[i+0].buffer_type = TSDB_DATA_TYPE_BOOL;
-    tags[i+0].buffer = v.b;
-    tags[i+0].is_null = &one_not_null;
-    tags[i+0].length = NULL;
-
-    tags[i+1].buffer_type = TSDB_DATA_TYPE_SMALLINT;
-    tags[i+1].buffer = v.v2;
-    tags[i+1].is_null = &one_not_null;
-    tags[i+1].length = NULL;
-
-    tags[i+2].buffer_type = TSDB_DATA_TYPE_FLOAT;
-    tags[i+2].buffer = v.f4;
-    tags[i+2].is_null = &one_not_null;
-    tags[i+2].length = NULL;
-
-    tags[i+3].buffer_type = TSDB_DATA_TYPE_BINARY;
-    tags[i+3].buffer = v.bin;
-    tags[i+3].is_null = &one_not_null;
-    tags[i+3].length = (uintptr_t *)lb;
-  }
-
-
-  unsigned long long starttime = taosGetTimestampUs();
-
-  char *sql = "insert into ? using stb1 tags(1,?,2,?,4,?,6.0,?,'b') values(?,?,?,?,?,?,?,?,?,?)";
-  int code = taos_stmt_prepare(stmt, sql, 0);
-  if (code != 0){
-    printf("failed to execute taos_stmt_prepare. code:0x%x\n", code);
-    exit(1);
-  }
-
-  int id = 0;
-  for (int zz = 0; zz < 1; zz++) {
-    char buf[32];
-    sprintf(buf, "m%d", zz);
-    code = taos_stmt_set_tbname_tags(stmt, buf, tags);
-    if (code != 0){
-      printf("failed to execute taos_stmt_set_tbname_tags. code:0x%x\n", code);
-    }  
-
-    taos_stmt_bind_param_batch(stmt, params + id * 10);
-    taos_stmt_add_batch(stmt);
-  }
-
-  if (taos_stmt_execute(stmt) != 0) {
-    printf("failed to execute insert statement.\n");
-    exit(1);
-  }
-
-  ++id;
-
-  unsigned long long endtime = taosGetTimestampUs();
-  printf("insert total %d records, used %u seconds, avg:%u useconds\n", 10, (endtime-starttime)/1000000UL, (endtime-starttime)/(10));
-
-  taosMemoryFree(v.ts);  
-  taosMemoryFree(lb);
-  taosMemoryFree(params);
-  taosMemoryFree(is_null);
-  taosMemoryFree(no_null);
-  taosMemoryFree(tags);
-
-  return 0;
-}
-
-
-
-
-
-
-
-//1 tables 10 records
-int stmt_funcb_autoctb4(TAOS_STMT *stmt) {
-  struct {
-      int64_t *ts;
-      int8_t b[10];
-      int8_t v1[10];
-      int16_t v2[10];
-      int32_t v4[10];
-      int64_t v8[10];
-      float f4[10];
-      double f8[10];
-      char bin[10][40];
-  } v = {0};
-
-  v.ts = taosMemoryMalloc(sizeof(int64_t) * 1 * 10);
-  
-  int *lb = taosMemoryMalloc(10 * sizeof(int));
-
-  TAOS_BIND *tags = taosMemoryCalloc(1, sizeof(TAOS_BIND) * 9 * 1);
-  TAOS_MULTI_BIND *params = taosMemoryCalloc(1, sizeof(TAOS_MULTI_BIND) * 1*5);
-
-//  int one_null = 1;
-  int one_not_null = 0;
-  
-  char* is_null = taosMemoryMalloc(sizeof(char) * 10);
-  char* no_null = taosMemoryMalloc(sizeof(char) * 10);
-
-  for (int i = 0; i < 10; ++i) {
-    lb[i] = 40;
-    no_null[i] = 0;
-    is_null[i] = (i % 10 == 2) ? 1 : 0;
-    v.b[i] = (int8_t)(i % 2);
-    v.v1[i] = (int8_t)((i+1) % 2);
-    v.v2[i] = (int16_t)i;
-    v.v4[i] = (int32_t)(i+1);
-    v.v8[i] = (int64_t)(i+2);
-    v.f4[i] = (float)(i+3);
-    v.f8[i] = (double)(i+4);
-    memset(v.bin[i], '0'+i%10, 40);
-  }
-  
-  for (int i = 0; i < 5; i+=5) {
-    params[i+0].buffer_type = TSDB_DATA_TYPE_TIMESTAMP;
-    params[i+0].buffer_length = sizeof(int64_t);
-    params[i+0].buffer = &v.ts[10*i/10];
-    params[i+0].length = NULL;
-    params[i+0].is_null = no_null;
-    params[i+0].num = 10;
-    
-    params[i+1].buffer_type = TSDB_DATA_TYPE_BOOL;
-    params[i+1].buffer_length = sizeof(int8_t);
-    params[i+1].buffer = v.b;
-    params[i+1].length = NULL;
-    params[i+1].is_null = is_null;
-    params[i+1].num = 10;
-
-    params[i+2].buffer_type = TSDB_DATA_TYPE_INT;
-    params[i+2].buffer_length = sizeof(int32_t);
-    params[i+2].buffer = v.v4;
+    params[i+2].buffer_type = TSDB_DATA_TYPE_INT;
+    params[i+2].buffer_length = sizeof(int32_t);
+    params[i+2].buffer = v.v4;
     params[i+2].length = NULL;
     params[i+2].is_null = is_null;
     params[i+2].num = 10;
@@ -2358,160 +2330,85 @@ int stmt_funcb_autoctb_e2(TAOS_STMT *stmt) {
   TAOS_BIND *tags = taosMemoryCalloc(1, sizeof(TAOS_BIND) * 9 * 1);
   TAOS_MULTI_BIND *params = taosMemoryCalloc(1, sizeof(TAOS_MULTI_BIND) * 1*10);
 
-//  int one_null = 1;
-  int one_not_null = 0;
-  
-  char* is_null = taosMemoryMalloc(sizeof(char) * 10);
-  char* no_null = taosMemoryMalloc(sizeof(char) * 10);
+  unsigned long long starttime = taosGetTimestampUs();
 
-  for (int i = 0; i < 10; ++i) {
-    lb[i] = 40;
-    no_null[i] = 0;
-    is_null[i] = (i % 10 == 2) ? 1 : 0;
-    v.b[i] = (int8_t)(i % 2);
-    v.v1[i] = (int8_t)((i+1) % 2);
-    v.v2[i] = (int16_t)i;
-    v.v4[i] = (int32_t)(i+1);
-    v.v8[i] = (int64_t)(i+2);
-    v.f4[i] = (float)(i+3);
-    v.f8[i] = (double)(i+4);
-    memset(v.bin[i], '0'+i%10, 40);
+  char *sql = "insert into ? using stb1 tags(?,?,?,?,?,?,?,?,?) values(?,?,?,?,?,?,?,?,?,?)";
+  int code = taos_stmt_prepare(stmt, sql, 0);
+  if (code != 0){
+    printf("failed to execute taos_stmt_prepare. code:0x%x\n", code);
+    exit(1);
   }
-  
-  for (int i = 0; i < 10; i+=10) {
-    params[i+0].buffer_type = TSDB_DATA_TYPE_TIMESTAMP;
-    params[i+0].buffer_length = sizeof(int64_t);
-    params[i+0].buffer = &v.ts[10*i/10];
-    params[i+0].length = NULL;
-    params[i+0].is_null = no_null;
-    params[i+0].num = 10;
-    
-    params[i+1].buffer_type = TSDB_DATA_TYPE_BOOL;
-    params[i+1].buffer_length = sizeof(int8_t);
-    params[i+1].buffer = v.b;
-    params[i+1].length = NULL;
-    params[i+1].is_null = is_null;
-    params[i+1].num = 10;
 
-    params[i+2].buffer_type = TSDB_DATA_TYPE_TINYINT;
-    params[i+2].buffer_length = sizeof(int8_t);
-    params[i+2].buffer = v.v1;
-    params[i+2].length = NULL;
-    params[i+2].is_null = is_null;
-    params[i+2].num = 10;
-
-    params[i+3].buffer_type = TSDB_DATA_TYPE_SMALLINT;
-    params[i+3].buffer_length = sizeof(int16_t);
-    params[i+3].buffer = v.v2;
-    params[i+3].length = NULL;
-    params[i+3].is_null = is_null;
-    params[i+3].num = 10;
+  int id = 0;
+  for (int zz = 0; zz < 1; zz++) {
+    char buf[32];
+    sprintf(buf, "m%d", zz);
+    code = taos_stmt_set_tbname_tags(stmt, buf, NULL);
+    if (code != 0){
+      printf("failed to execute taos_stmt_set_tbname_tags. code:%s\n", taos_stmt_errstr(stmt));
+      return -1;
+    }  
 
-    params[i+4].buffer_type = TSDB_DATA_TYPE_INT;
-    params[i+4].buffer_length = sizeof(int32_t);
-    params[i+4].buffer = v.v4;
-    params[i+4].length = NULL;
-    params[i+4].is_null = is_null;
-    params[i+4].num = 10;
+    taos_stmt_bind_param_batch(stmt, params + id * 10);
+    taos_stmt_add_batch(stmt);
+  }
 
-    params[i+5].buffer_type = TSDB_DATA_TYPE_BIGINT;
-    params[i+5].buffer_length = sizeof(int64_t);
-    params[i+5].buffer = v.v8;
-    params[i+5].length = NULL;
-    params[i+5].is_null = is_null;
-    params[i+5].num = 10;
-
-    params[i+6].buffer_type = TSDB_DATA_TYPE_FLOAT;
-    params[i+6].buffer_length = sizeof(float);
-    params[i+6].buffer = v.f4;
-    params[i+6].length = NULL;
-    params[i+6].is_null = is_null;
-    params[i+6].num = 10;
-
-    params[i+7].buffer_type = TSDB_DATA_TYPE_DOUBLE;
-    params[i+7].buffer_length = sizeof(double);
-    params[i+7].buffer = v.f8;
-    params[i+7].length = NULL;
-    params[i+7].is_null = is_null;
-    params[i+7].num = 10;
+  if (taos_stmt_execute(stmt) != 0) {
+    printf("failed to execute insert statement.\n");
+    exit(1);
+  }
 
-    params[i+8].buffer_type = TSDB_DATA_TYPE_BINARY;
-    params[i+8].buffer_length = 40;
-    params[i+8].buffer = v.bin;
-    params[i+8].length = lb;
-    params[i+8].is_null = is_null;
-    params[i+8].num = 10;
+  ++id;
 
-    params[i+9].buffer_type = TSDB_DATA_TYPE_BINARY;
-    params[i+9].buffer_length = 40;
-    params[i+9].buffer = v.bin;
-    params[i+9].length = lb;
-    params[i+9].is_null = is_null;
-    params[i+9].num = 10;
-    
-  }
+  unsigned long long endtime = taosGetTimestampUs();
+  printf("insert total %d records, used %u seconds, avg:%u useconds\n", 10, (endtime-starttime)/1000000UL, (endtime-starttime)/(10));
 
-  int64_t tts = 1591060628000;
-  for (int i = 0; i < 10; ++i) {
-    v.ts[i] = tts + i;
-  }
+  taosMemoryFree(v.ts);  
+  taosMemoryFree(lb);
+  taosMemoryFree(params);
+  taosMemoryFree(is_null);
+  taosMemoryFree(no_null);
+  taosMemoryFree(tags);
 
+  return 0;
+}
 
-  for (int i = 0; i < 1; ++i) {
-    tags[i+0].buffer_type = TSDB_DATA_TYPE_INT;
-    tags[i+0].buffer = v.v4;
-    tags[i+0].is_null = &one_not_null;
-    tags[i+0].length = NULL;
 
-    tags[i+1].buffer_type = TSDB_DATA_TYPE_BOOL;
-    tags[i+1].buffer = v.b;
-    tags[i+1].is_null = &one_not_null;
-    tags[i+1].length = NULL;
 
-    tags[i+2].buffer_type = TSDB_DATA_TYPE_TINYINT;
-    tags[i+2].buffer = v.v1;
-    tags[i+2].is_null = &one_not_null;
-    tags[i+2].length = NULL;
 
-    tags[i+3].buffer_type = TSDB_DATA_TYPE_SMALLINT;
-    tags[i+3].buffer = v.v2;
-    tags[i+3].is_null = &one_not_null;
-    tags[i+3].length = NULL;
 
-    tags[i+4].buffer_type = TSDB_DATA_TYPE_BIGINT;
-    tags[i+4].buffer = v.v8;
-    tags[i+4].is_null = &one_not_null;
-    tags[i+4].length = NULL;
 
-    tags[i+5].buffer_type = TSDB_DATA_TYPE_FLOAT;
-    tags[i+5].buffer = v.f4;
-    tags[i+5].is_null = &one_not_null;
-    tags[i+5].length = NULL;
 
-    tags[i+6].buffer_type = TSDB_DATA_TYPE_DOUBLE;
-    tags[i+6].buffer = v.f8;
-    tags[i+6].is_null = &one_not_null;
-    tags[i+6].length = NULL;
+//1 tables 10 records
+int stmt_funcb_autoctb_e3(TAOS_STMT *stmt) {
+  struct {
+      int64_t *ts;
+      int8_t b[10];
+      int8_t v1[10];
+      int16_t v2[10];
+      int32_t v4[10];
+      int64_t v8[10];
+      float f4[10];
+      double f8[10];
+      char bin[10][40];
+  } v = {0};
 
-    tags[i+7].buffer_type = TSDB_DATA_TYPE_BINARY;
-    tags[i+7].buffer = v.bin;
-    tags[i+7].is_null = &one_not_null;
-    tags[i+7].length = (uintptr_t *)lb;
+  v.ts = taosMemoryMalloc(sizeof(int64_t) * 1 * 10);
+  
+  int *lb = taosMemoryMalloc(10 * sizeof(int));
 
-    tags[i+8].buffer_type = TSDB_DATA_TYPE_NCHAR;
-    tags[i+8].buffer = v.bin;
-    tags[i+8].is_null = &one_not_null;
-    tags[i+8].length = (uintptr_t *)lb;
-  }
+  TAOS_BIND *tags = taosMemoryCalloc(1, sizeof(TAOS_BIND) * 9 * 1);
+  TAOS_MULTI_BIND *params = taosMemoryCalloc(1, sizeof(TAOS_MULTI_BIND) * 1*10);
 
 
   unsigned long long starttime = taosGetTimestampUs();
 
-  char *sql = "insert into ? using stb1 tags(?,?,?,?,?,?,?,?,?) values(?,?,?,?,?,?,?,?,?,?)";
+  char *sql = "insert into ? using stb1 (id1,id2,id3,id4,id5,id6,id7,id8,id9) tags(?,?,?,?,?,?,?,?,?) values(?,?,?,?,?,?,?,?,?,?)";
   int code = taos_stmt_prepare(stmt, sql, 0);
   if (code != 0){
-    printf("failed to execute taos_stmt_prepare. code:0x%x\n", code);
-    exit(1);
+    printf("failed to execute taos_stmt_prepare. code:%s\n", taos_stmt_errstr(stmt));
+    return -1;
+    //exit(1);
   }
 
   int id = 0;
@@ -2520,7 +2417,7 @@ int stmt_funcb_autoctb_e2(TAOS_STMT *stmt) {
     sprintf(buf, "m%d", zz);
     code = taos_stmt_set_tbname_tags(stmt, buf, NULL);
     if (code != 0){
-      printf("failed to execute taos_stmt_set_tbname_tags. code:%s\n", taos_stmt_errstr(stmt));
+      printf("failed to execute taos_stmt_set_tbname_tags. code:0x%x\n", code);
       return -1;
     }  
 
@@ -2551,11 +2448,8 @@ int stmt_funcb_autoctb_e2(TAOS_STMT *stmt) {
 
 
 
-
-
-
 //1 tables 10 records
-int stmt_funcb_autoctb_e3(TAOS_STMT *stmt) {
+int stmt_funcb_autoctb_e4(TAOS_STMT *stmt) {
   struct {
       int64_t *ts;
       int8_t b[10];
@@ -2575,202 +2469,67 @@ int stmt_funcb_autoctb_e3(TAOS_STMT *stmt) {
   TAOS_BIND *tags = taosMemoryCalloc(1, sizeof(TAOS_BIND) * 9 * 1);
   TAOS_MULTI_BIND *params = taosMemoryCalloc(1, sizeof(TAOS_MULTI_BIND) * 1*10);
 
-//  int one_null = 1;
-  int one_not_null = 0;
-  
-  char* is_null = taosMemoryMalloc(sizeof(char) * 10);
-  char* no_null = taosMemoryMalloc(sizeof(char) * 10);
+  unsigned long long starttime = taosGetTimestampUs();
 
-  for (int i = 0; i < 10; ++i) {
-    lb[i] = 40;
-    no_null[i] = 0;
-    is_null[i] = (i % 10 == 2) ? 1 : 0;
-    v.b[i] = (int8_t)(i % 2);
-    v.v1[i] = (int8_t)((i+1) % 2);
-    v.v2[i] = (int16_t)i;
-    v.v4[i] = (int32_t)(i+1);
-    v.v8[i] = (int64_t)(i+2);
-    v.f4[i] = (float)(i+3);
-    v.f8[i] = (double)(i+4);
-    memset(v.bin[i], '0'+i%10, 40);
+  char *sql = "insert into ? using stb1 tags(?,?,?,?,?,?,?,?,?) values(?,?,?,?,?,?,?,?,?,?)";
+  int code = taos_stmt_prepare(stmt, sql, 0);
+  if (code != 0){
+    printf("failed to execute taos_stmt_prepare. code:%s\n", taos_stmt_errstr(stmt));
+    exit(1);
   }
-  
-  for (int i = 0; i < 10; i+=10) {
-    params[i+0].buffer_type = TSDB_DATA_TYPE_TIMESTAMP;
-    params[i+0].buffer_length = sizeof(int64_t);
-    params[i+0].buffer = &v.ts[10*i/10];
-    params[i+0].length = NULL;
-    params[i+0].is_null = no_null;
-    params[i+0].num = 10;
+
+  int id = 0;
+  for (int zz = 0; zz < 1; zz++) {
+    char buf[32];
+    sprintf(buf, "m%d", zz);
+    code = taos_stmt_set_tbname_tags(stmt, buf, tags);
+    if (code != 0){
+      printf("failed to execute taos_stmt_set_tbname_tags. error:%s\n", taos_stmt_errstr(stmt));
+      exit(1);
+    }  
+
+    code = taos_stmt_bind_param_batch(stmt, params + id * 10);
+    if (code != 0) {
+      printf("failed to execute taos_stmt_bind_param_batch. error:%s\n", taos_stmt_errstr(stmt));
+      exit(1);
+    }
     
-    params[i+1].buffer_type = TSDB_DATA_TYPE_BOOL;
-    params[i+1].buffer_length = sizeof(int8_t);
-    params[i+1].buffer = v.b;
-    params[i+1].length = NULL;
-    params[i+1].is_null = is_null;
-    params[i+1].num = 10;
+    code = taos_stmt_bind_param_batch(stmt, params + id * 10);
+    if (code != 0) {
+      printf("failed to execute taos_stmt_bind_param_batch. error:%s\n", taos_stmt_errstr(stmt));
+      return -1;
+    }
+    
+    taos_stmt_add_batch(stmt);
+  }
 
-    params[i+2].buffer_type = TSDB_DATA_TYPE_TINYINT;
-    params[i+2].buffer_length = sizeof(int8_t);
-    params[i+2].buffer = v.v1;
-    params[i+2].length = NULL;
-    params[i+2].is_null = is_null;
-    params[i+2].num = 10;
+  if (taos_stmt_execute(stmt) != 0) {
+    printf("failed to execute insert statement.\n");
+    exit(1);
+  }
 
-    params[i+3].buffer_type = TSDB_DATA_TYPE_SMALLINT;
-    params[i+3].buffer_length = sizeof(int16_t);
-    params[i+3].buffer = v.v2;
-    params[i+3].length = NULL;
-    params[i+3].is_null = is_null;
-    params[i+3].num = 10;
+  ++id;
 
-    params[i+4].buffer_type = TSDB_DATA_TYPE_INT;
-    params[i+4].buffer_length = sizeof(int32_t);
-    params[i+4].buffer = v.v4;
-    params[i+4].length = NULL;
-    params[i+4].is_null = is_null;
-    params[i+4].num = 10;
+  unsigned long long endtime = taosGetTimestampUs();
+  printf("insert total %d records, used %u seconds, avg:%u useconds\n", 10, (endtime-starttime)/1000000UL, (endtime-starttime)/(10));
 
-    params[i+5].buffer_type = TSDB_DATA_TYPE_BIGINT;
-    params[i+5].buffer_length = sizeof(int64_t);
-    params[i+5].buffer = v.v8;
-    params[i+5].length = NULL;
-    params[i+5].is_null = is_null;
-    params[i+5].num = 10;
+  taosMemoryFree(v.ts);  
+  taosMemoryFree(lb);
+  taosMemoryFree(params);
+  taosMemoryFree(is_null);
+  taosMemoryFree(no_null);
+  taosMemoryFree(tags);
 
-    params[i+6].buffer_type = TSDB_DATA_TYPE_FLOAT;
-    params[i+6].buffer_length = sizeof(float);
-    params[i+6].buffer = v.f4;
-    params[i+6].length = NULL;
-    params[i+6].is_null = is_null;
-    params[i+6].num = 10;
+  return 0;
+}
 
-    params[i+7].buffer_type = TSDB_DATA_TYPE_DOUBLE;
-    params[i+7].buffer_length = sizeof(double);
-    params[i+7].buffer = v.f8;
-    params[i+7].length = NULL;
-    params[i+7].is_null = is_null;
-    params[i+7].num = 10;
 
-    params[i+8].buffer_type = TSDB_DATA_TYPE_BINARY;
-    params[i+8].buffer_length = 40;
-    params[i+8].buffer = v.bin;
-    params[i+8].length = lb;
-    params[i+8].is_null = is_null;
-    params[i+8].num = 10;
-
-    params[i+9].buffer_type = TSDB_DATA_TYPE_BINARY;
-    params[i+9].buffer_length = 40;
-    params[i+9].buffer = v.bin;
-    params[i+9].length = lb;
-    params[i+9].is_null = is_null;
-    params[i+9].num = 10;
-    
-  }
-
-  int64_t tts = 1591060628000;
-  for (int i = 0; i < 10; ++i) {
-    v.ts[i] = tts + i;
-  }
-
-
-  for (int i = 0; i < 1; ++i) {
-    tags[i+0].buffer_type = TSDB_DATA_TYPE_INT;
-    tags[i+0].buffer = v.v4;
-    tags[i+0].is_null = &one_not_null;
-    tags[i+0].length = NULL;
-
-    tags[i+1].buffer_type = TSDB_DATA_TYPE_BOOL;
-    tags[i+1].buffer = v.b;
-    tags[i+1].is_null = &one_not_null;
-    tags[i+1].length = NULL;
-
-    tags[i+2].buffer_type = TSDB_DATA_TYPE_TINYINT;
-    tags[i+2].buffer = v.v1;
-    tags[i+2].is_null = &one_not_null;
-    tags[i+2].length = NULL;
-
-    tags[i+3].buffer_type = TSDB_DATA_TYPE_SMALLINT;
-    tags[i+3].buffer = v.v2;
-    tags[i+3].is_null = &one_not_null;
-    tags[i+3].length = NULL;
-
-    tags[i+4].buffer_type = TSDB_DATA_TYPE_BIGINT;
-    tags[i+4].buffer = v.v8;
-    tags[i+4].is_null = &one_not_null;
-    tags[i+4].length = NULL;
-
-    tags[i+5].buffer_type = TSDB_DATA_TYPE_FLOAT;
-    tags[i+5].buffer = v.f4;
-    tags[i+5].is_null = &one_not_null;
-    tags[i+5].length = NULL;
-
-    tags[i+6].buffer_type = TSDB_DATA_TYPE_DOUBLE;
-    tags[i+6].buffer = v.f8;
-    tags[i+6].is_null = &one_not_null;
-    tags[i+6].length = NULL;
-
-    tags[i+7].buffer_type = TSDB_DATA_TYPE_BINARY;
-    tags[i+7].buffer = v.bin;
-    tags[i+7].is_null = &one_not_null;
-    tags[i+7].length = (uintptr_t *)lb;
-
-    tags[i+8].buffer_type = TSDB_DATA_TYPE_NCHAR;
-    tags[i+8].buffer = v.bin;
-    tags[i+8].is_null = &one_not_null;
-    tags[i+8].length = (uintptr_t *)lb;
-  }
-
-
-  unsigned long long starttime = taosGetTimestampUs();
-
-  char *sql = "insert into ? using stb1 (id1,id2,id3,id4,id5,id6,id7,id8,id9) tags(?,?,?,?,?,?,?,?,?) values(?,?,?,?,?,?,?,?,?,?)";
-  int code = taos_stmt_prepare(stmt, sql, 0);
-  if (code != 0){
-    printf("failed to execute taos_stmt_prepare. code:%s\n", taos_stmt_errstr(stmt));
-    return -1;
-    //exit(1);
-  }
-
-  int id = 0;
-  for (int zz = 0; zz < 1; zz++) {
-    char buf[32];
-    sprintf(buf, "m%d", zz);
-    code = taos_stmt_set_tbname_tags(stmt, buf, NULL);
-    if (code != 0){
-      printf("failed to execute taos_stmt_set_tbname_tags. code:0x%x\n", code);
-      return -1;
-    }  
-
-    taos_stmt_bind_param_batch(stmt, params + id * 10);
-    taos_stmt_add_batch(stmt);
-  }
-
-  if (taos_stmt_execute(stmt) != 0) {
-    printf("failed to execute insert statement.\n");
-    exit(1);
-  }
-
-  ++id;
-
-  unsigned long long endtime = taosGetTimestampUs();
-  printf("insert total %d records, used %u seconds, avg:%u useconds\n", 10, (endtime-starttime)/1000000UL, (endtime-starttime)/(10));
-
-  taosMemoryFree(v.ts);  
-  taosMemoryFree(lb);
-  taosMemoryFree(params);
-  taosMemoryFree(is_null);
-  taosMemoryFree(no_null);
-  taosMemoryFree(tags);
-
-  return 0;
-}
 
 
 
 
 //1 tables 10 records
-int stmt_funcb_autoctb_e4(TAOS_STMT *stmt) {
+int stmt_funcb_autoctb_e5(TAOS_STMT *stmt) {
   struct {
       int64_t *ts;
       int8_t b[10];
@@ -2790,160 +2549,13 @@ int stmt_funcb_autoctb_e4(TAOS_STMT *stmt) {
   TAOS_BIND *tags = taosMemoryCalloc(1, sizeof(TAOS_BIND) * 9 * 1);
   TAOS_MULTI_BIND *params = taosMemoryCalloc(1, sizeof(TAOS_MULTI_BIND) * 1*10);
 
-//  int one_null = 1;
-  int one_not_null = 0;
-  
-  char* is_null = taosMemoryMalloc(sizeof(char) * 10);
-  char* no_null = taosMemoryMalloc(sizeof(char) * 10);
-
-  for (int i = 0; i < 10; ++i) {
-    lb[i] = 40;
-    no_null[i] = 0;
-    is_null[i] = (i % 10 == 2) ? 1 : 0;
-    v.b[i] = (int8_t)(i % 2);
-    v.v1[i] = (int8_t)((i+1) % 2);
-    v.v2[i] = (int16_t)i;
-    v.v4[i] = (int32_t)(i+1);
-    v.v8[i] = (int64_t)(i+2);
-    v.f4[i] = (float)(i+3);
-    v.f8[i] = (double)(i+4);
-    memset(v.bin[i], '0'+i%10, 40);
-  }
-  
-  for (int i = 0; i < 10; i+=10) {
-    params[i+0].buffer_type = TSDB_DATA_TYPE_TIMESTAMP;
-    params[i+0].buffer_length = sizeof(int64_t);
-    params[i+0].buffer = &v.ts[10*i/10];
-    params[i+0].length = NULL;
-    params[i+0].is_null = no_null;
-    params[i+0].num = 10;
-    
-    params[i+1].buffer_type = TSDB_DATA_TYPE_BOOL;
-    params[i+1].buffer_length = sizeof(int8_t);
-    params[i+1].buffer = v.b;
-    params[i+1].length = NULL;
-    params[i+1].is_null = is_null;
-    params[i+1].num = 10;
-
-    params[i+2].buffer_type = TSDB_DATA_TYPE_TINYINT;
-    params[i+2].buffer_length = sizeof(int8_t);
-    params[i+2].buffer = v.v1;
-    params[i+2].length = NULL;
-    params[i+2].is_null = is_null;
-    params[i+2].num = 10;
-
-    params[i+3].buffer_type = TSDB_DATA_TYPE_SMALLINT;
-    params[i+3].buffer_length = sizeof(int16_t);
-    params[i+3].buffer = v.v2;
-    params[i+3].length = NULL;
-    params[i+3].is_null = is_null;
-    params[i+3].num = 10;
-
-    params[i+4].buffer_type = TSDB_DATA_TYPE_INT;
-    params[i+4].buffer_length = sizeof(int32_t);
-    params[i+4].buffer = v.v4;
-    params[i+4].length = NULL;
-    params[i+4].is_null = is_null;
-    params[i+4].num = 10;
-
-    params[i+5].buffer_type = TSDB_DATA_TYPE_BIGINT;
-    params[i+5].buffer_length = sizeof(int64_t);
-    params[i+5].buffer = v.v8;
-    params[i+5].length = NULL;
-    params[i+5].is_null = is_null;
-    params[i+5].num = 10;
-
-    params[i+6].buffer_type = TSDB_DATA_TYPE_FLOAT;
-    params[i+6].buffer_length = sizeof(float);
-    params[i+6].buffer = v.f4;
-    params[i+6].length = NULL;
-    params[i+6].is_null = is_null;
-    params[i+6].num = 10;
-
-    params[i+7].buffer_type = TSDB_DATA_TYPE_DOUBLE;
-    params[i+7].buffer_length = sizeof(double);
-    params[i+7].buffer = v.f8;
-    params[i+7].length = NULL;
-    params[i+7].is_null = is_null;
-    params[i+7].num = 10;
-
-    params[i+8].buffer_type = TSDB_DATA_TYPE_BINARY;
-    params[i+8].buffer_length = 40;
-    params[i+8].buffer = v.bin;
-    params[i+8].length = lb;
-    params[i+8].is_null = is_null;
-    params[i+8].num = 10;
-
-    params[i+9].buffer_type = TSDB_DATA_TYPE_BINARY;
-    params[i+9].buffer_length = 40;
-    params[i+9].buffer = v.bin;
-    params[i+9].length = lb;
-    params[i+9].is_null = is_null;
-    params[i+9].num = 10;
-    
-  }
-
-  int64_t tts = 1591060628000;
-  for (int i = 0; i < 10; ++i) {
-    v.ts[i] = tts + i;
-  }
-
-
-  for (int i = 0; i < 1; ++i) {
-    tags[i+0].buffer_type = TSDB_DATA_TYPE_INT;
-    tags[i+0].buffer = v.v4;
-    tags[i+0].is_null = &one_not_null;
-    tags[i+0].length = NULL;
-
-    tags[i+1].buffer_type = TSDB_DATA_TYPE_BOOL;
-    tags[i+1].buffer = v.b;
-    tags[i+1].is_null = &one_not_null;
-    tags[i+1].length = NULL;
-
-    tags[i+2].buffer_type = TSDB_DATA_TYPE_TINYINT;
-    tags[i+2].buffer = v.v1;
-    tags[i+2].is_null = &one_not_null;
-    tags[i+2].length = NULL;
-
-    tags[i+3].buffer_type = TSDB_DATA_TYPE_SMALLINT;
-    tags[i+3].buffer = v.v2;
-    tags[i+3].is_null = &one_not_null;
-    tags[i+3].length = NULL;
-
-    tags[i+4].buffer_type = TSDB_DATA_TYPE_BIGINT;
-    tags[i+4].buffer = v.v8;
-    tags[i+4].is_null = &one_not_null;
-    tags[i+4].length = NULL;
-
-    tags[i+5].buffer_type = TSDB_DATA_TYPE_FLOAT;
-    tags[i+5].buffer = v.f4;
-    tags[i+5].is_null = &one_not_null;
-    tags[i+5].length = NULL;
-
-    tags[i+6].buffer_type = TSDB_DATA_TYPE_DOUBLE;
-    tags[i+6].buffer = v.f8;
-    tags[i+6].is_null = &one_not_null;
-    tags[i+6].length = NULL;
-
-    tags[i+7].buffer_type = TSDB_DATA_TYPE_BINARY;
-    tags[i+7].buffer = v.bin;
-    tags[i+7].is_null = &one_not_null;
-    tags[i+7].length = (uintptr_t *)lb;
-
-    tags[i+8].buffer_type = TSDB_DATA_TYPE_NCHAR;
-    tags[i+8].buffer = v.bin;
-    tags[i+8].is_null = &one_not_null;
-    tags[i+8].length = (uintptr_t *)lb;
-  }
-
-
   unsigned long long starttime = taosGetTimestampUs();
 
   char *sql = "insert into ? using stb1 tags(?,?,?,?,?,?,?,?,?) values(?,?,?,?,?,?,?,?,?,?)";
-  int code = taos_stmt_prepare(stmt, sql, 0);
+  int code = taos_stmt_prepare(NULL, sql, 0);
   if (code != 0){
-    printf("failed to execute taos_stmt_prepare. code:%s\n", taos_stmt_errstr(stmt));
-    exit(1);
+    printf("failed to execute taos_stmt_prepare. code:%s\n", taos_stmt_errstr(NULL));
+    return -1;
   }
 
   int id = 0;
@@ -2991,1262 +2603,6 @@ int stmt_funcb_autoctb_e4(TAOS_STMT *stmt) {
   return 0;
 }
 
-
-
-
-
-
-//1 tables 10 records
-int stmt_funcb_autoctb_e5(TAOS_STMT *stmt) {
-  struct {
-      int64_t *ts;
-      int8_t b[10];
-      int8_t v1[10];
-      int16_t v2[10];
-      int32_t v4[10];
-      int64_t v8[10];
-      float f4[10];
-      double f8[10];
-      char bin[10][40];
-  } v = {0};
-
-  v.ts = taosMemoryMalloc(sizeof(int64_t) * 1 * 10);
-  
-  int *lb = taosMemoryMalloc(10 * sizeof(int));
-
-  TAOS_BIND *tags = taosMemoryCalloc(1, sizeof(TAOS_BIND) * 9 * 1);
-  TAOS_MULTI_BIND *params = taosMemoryCalloc(1, sizeof(TAOS_MULTI_BIND) * 1*10);
-
-//  int one_null = 1;
-  int one_not_null = 0;
-  
-  char* is_null = taosMemoryMalloc(sizeof(char) * 10);
-  char* no_null = taosMemoryMalloc(sizeof(char) * 10);
-
-  for (int i = 0; i < 10; ++i) {
-    lb[i] = 40;
-    no_null[i] = 0;
-    is_null[i] = (i % 10 == 2) ? 1 : 0;
-    v.b[i] = (int8_t)(i % 2);
-    v.v1[i] = (int8_t)((i+1) % 2);
-    v.v2[i] = (int16_t)i;
-    v.v4[i] = (int32_t)(i+1);
-    v.v8[i] = (int64_t)(i+2);
-    v.f4[i] = (float)(i+3);
-    v.f8[i] = (double)(i+4);
-    memset(v.bin[i], '0'+i%10, 40);
-  }
-  
-  for (int i = 0; i < 10; i+=10) {
-    params[i+0].buffer_type = TSDB_DATA_TYPE_TIMESTAMP;
-    params[i+0].buffer_length = sizeof(int64_t);
-    params[i+0].buffer = &v.ts[10*i/10];
-    params[i+0].length = NULL;
-    params[i+0].is_null = no_null;
-    params[i+0].num = 10;
-    
-    params[i+1].buffer_type = TSDB_DATA_TYPE_BOOL;
-    params[i+1].buffer_length = sizeof(int8_t);
-    params[i+1].buffer = v.b;
-    params[i+1].length = NULL;
-    params[i+1].is_null = is_null;
-    params[i+1].num = 10;
-
-    params[i+2].buffer_type = TSDB_DATA_TYPE_TINYINT;
-    params[i+2].buffer_length = sizeof(int8_t);
-    params[i+2].buffer = v.v1;
-    params[i+2].length = NULL;
-    params[i+2].is_null = is_null;
-    params[i+2].num = 10;
-
-    params[i+3].buffer_type = TSDB_DATA_TYPE_SMALLINT;
-    params[i+3].buffer_length = sizeof(int16_t);
-    params[i+3].buffer = v.v2;
-    params[i+3].length = NULL;
-    params[i+3].is_null = is_null;
-    params[i+3].num = 10;
-
-    params[i+4].buffer_type = TSDB_DATA_TYPE_INT;
-    params[i+4].buffer_length = sizeof(int32_t);
-    params[i+4].buffer = v.v4;
-    params[i+4].length = NULL;
-    params[i+4].is_null = is_null;
-    params[i+4].num = 10;
-
-    params[i+5].buffer_type = TSDB_DATA_TYPE_BIGINT;
-    params[i+5].buffer_length = sizeof(int64_t);
-    params[i+5].buffer = v.v8;
-    params[i+5].length = NULL;
-    params[i+5].is_null = is_null;
-    params[i+5].num = 10;
-
-    params[i+6].buffer_type = TSDB_DATA_TYPE_FLOAT;
-    params[i+6].buffer_length = sizeof(float);
-    params[i+6].buffer = v.f4;
-    params[i+6].length = NULL;
-    params[i+6].is_null = is_null;
-    params[i+6].num = 10;
-
-    params[i+7].buffer_type = TSDB_DATA_TYPE_DOUBLE;
-    params[i+7].buffer_length = sizeof(double);
-    params[i+7].buffer = v.f8;
-    params[i+7].length = NULL;
-    params[i+7].is_null = is_null;
-    params[i+7].num = 10;
-
-    params[i+8].buffer_type = TSDB_DATA_TYPE_BINARY;
-    params[i+8].buffer_length = 40;
-    params[i+8].buffer = v.bin;
-    params[i+8].length = lb;
-    params[i+8].is_null = is_null;
-    params[i+8].num = 10;
-
-    params[i+9].buffer_type = TSDB_DATA_TYPE_BINARY;
-    params[i+9].buffer_length = 40;
-    params[i+9].buffer = v.bin;
-    params[i+9].length = lb;
-    params[i+9].is_null = is_null;
-    params[i+9].num = 10;
-    
-  }
-
-  int64_t tts = 1591060628000;
-  for (int i = 0; i < 10; ++i) {
-    v.ts[i] = tts + i;
-  }
-
-
-  for (int i = 0; i < 1; ++i) {
-    tags[i+0].buffer_type = TSDB_DATA_TYPE_INT;
-    tags[i+0].buffer = v.v4;
-    tags[i+0].is_null = &one_not_null;
-    tags[i+0].length = NULL;
-
-    tags[i+1].buffer_type = TSDB_DATA_TYPE_BOOL;
-    tags[i+1].buffer = v.b;
-    tags[i+1].is_null = &one_not_null;
-    tags[i+1].length = NULL;
-
-    tags[i+2].buffer_type = TSDB_DATA_TYPE_TINYINT;
-    tags[i+2].buffer = v.v1;
-    tags[i+2].is_null = &one_not_null;
-    tags[i+2].length = NULL;
-
-    tags[i+3].buffer_type = TSDB_DATA_TYPE_SMALLINT;
-    tags[i+3].buffer = v.v2;
-    tags[i+3].is_null = &one_not_null;
-    tags[i+3].length = NULL;
-
-    tags[i+4].buffer_type = TSDB_DATA_TYPE_BIGINT;
-    tags[i+4].buffer = v.v8;
-    tags[i+4].is_null = &one_not_null;
-    tags[i+4].length = NULL;
-
-    tags[i+5].buffer_type = TSDB_DATA_TYPE_FLOAT;
-    tags[i+5].buffer = v.f4;
-    tags[i+5].is_null = &one_not_null;
-    tags[i+5].length = NULL;
-
-    tags[i+6].buffer_type = TSDB_DATA_TYPE_DOUBLE;
-    tags[i+6].buffer = v.f8;
-    tags[i+6].is_null = &one_not_null;
-    tags[i+6].length = NULL;
-
-    tags[i+7].buffer_type = TSDB_DATA_TYPE_BINARY;
-    tags[i+7].buffer = v.bin;
-    tags[i+7].is_null = &one_not_null;
-    tags[i+7].length = (uintptr_t *)lb;
-
-    tags[i+8].buffer_type = TSDB_DATA_TYPE_NCHAR;
-    tags[i+8].buffer = v.bin;
-    tags[i+8].is_null = &one_not_null;
-    tags[i+8].length = (uintptr_t *)lb;
-  }
-
-
-  unsigned long long starttime = taosGetTimestampUs();
-
-  char *sql = "insert into ? using stb1 tags(?,?,?,?,?,?,?,?,?) values(?,?,?,?,?,?,?,?,?,?)";
-  int code = taos_stmt_prepare(NULL, sql, 0);
-  if (code != 0){
-    printf("failed to execute taos_stmt_prepare. code:%s\n", taos_stmt_errstr(NULL));
-    return -1;
-  }
-
-  int id = 0;
-  for (int zz = 0; zz < 1; zz++) {
-    char buf[32];
-    sprintf(buf, "m%d", zz);
-    code = taos_stmt_set_tbname_tags(stmt, buf, tags);
-    if (code != 0){
-      printf("failed to execute taos_stmt_set_tbname_tags. error:%s\n", taos_stmt_errstr(stmt));
-      exit(1);
-    }  
-
-    code = taos_stmt_bind_param_batch(stmt, params + id * 10);
-    if (code != 0) {
-      printf("failed to execute taos_stmt_bind_param_batch. error:%s\n", taos_stmt_errstr(stmt));
-      exit(1);
-    }
-    
-    code = taos_stmt_bind_param_batch(stmt, params + id * 10);
-    if (code != 0) {
-      printf("failed to execute taos_stmt_bind_param_batch. error:%s\n", taos_stmt_errstr(stmt));
-      return -1;
-    }
-    
-    taos_stmt_add_batch(stmt);
-  }
-
-  if (taos_stmt_execute(stmt) != 0) {
-    printf("failed to execute insert statement.\n");
-    exit(1);
-  }
-
-  ++id;
-
-  unsigned long long endtime = taosGetTimestampUs();
-  printf("insert total %d records, used %u seconds, avg:%u useconds\n", 10, (endtime-starttime)/1000000UL, (endtime-starttime)/(10));
-
-  taosMemoryFree(v.ts);  
-  taosMemoryFree(lb);
-  taosMemoryFree(params);
-  taosMemoryFree(is_null);
-  taosMemoryFree(no_null);
-  taosMemoryFree(tags);
-
-  return 0;
-}
-
-//samets
-int stmt_funcb4(TAOS_STMT *stmt) {
-  struct {
-      int64_t *ts;
-      int8_t b[60];
-      int8_t v1[60];
-      int16_t v2[60];
-      int32_t v4[60];
-      int64_t v8[60];
-      float f4[60];
-      double f8[60];
-      char bin[60][40];
-  } v = {0};
-
-  v.ts = taosMemoryMalloc(sizeof(int64_t) * 900000 * 60);
-  
-  int *lb = taosMemoryMalloc(60 * sizeof(int));
-  
-  TAOS_MULTI_BIND *params = taosMemoryCalloc(1, sizeof(TAOS_MULTI_BIND) * 900000*10);
-  char* is_null = taosMemoryMalloc(sizeof(char) * 60);
-  char* no_null = taosMemoryMalloc(sizeof(char) * 60);
-
-  for (int i = 0; i < 60; ++i) {
-    lb[i] = 40;
-    no_null[i] = 0;
-    is_null[i] = (i % 10 == 2) ? 1 : 0;
-    v.b[i] = (int8_t)(i % 2);
-    v.v1[i] = (int8_t)((i+1) % 2);
-    v.v2[i] = (int16_t)i;
-    v.v4[i] = (int32_t)(i+1);
-    v.v8[i] = (int64_t)(i+2);
-    v.f4[i] = (float)(i+3);
-    v.f8[i] = (double)(i+4);
-    memset(v.bin[i], '0'+i%10, 40);
-  }
-  
-  for (int i = 0; i < 9000000; i+=10) {
-    params[i+0].buffer_type = TSDB_DATA_TYPE_TIMESTAMP;
-    params[i+0].buffer_length = sizeof(int64_t);
-    params[i+0].buffer = &v.ts[60*i/10];
-    params[i+0].length = NULL;
-    params[i+0].is_null = no_null;
-    params[i+0].num = 60;
-    
-    params[i+1].buffer_type = TSDB_DATA_TYPE_BOOL;
-    params[i+1].buffer_length = sizeof(int8_t);
-    params[i+1].buffer = v.b;
-    params[i+1].length = NULL;
-    params[i+1].is_null = is_null;
-    params[i+1].num = 60;
-
-    params[i+2].buffer_type = TSDB_DATA_TYPE_TINYINT;
-    params[i+2].buffer_length = sizeof(int8_t);
-    params[i+2].buffer = v.v1;
-    params[i+2].length = NULL;
-    params[i+2].is_null = is_null;
-    params[i+2].num = 60;
-
-    params[i+3].buffer_type = TSDB_DATA_TYPE_SMALLINT;
-    params[i+3].buffer_length = sizeof(int16_t);
-    params[i+3].buffer = v.v2;
-    params[i+3].length = NULL;
-    params[i+3].is_null = is_null;
-    params[i+3].num = 60;
-
-    params[i+4].buffer_type = TSDB_DATA_TYPE_INT;
-    params[i+4].buffer_length = sizeof(int32_t);
-    params[i+4].buffer = v.v4;
-    params[i+4].length = NULL;
-    params[i+4].is_null = is_null;
-    params[i+4].num = 60;
-
-    params[i+5].buffer_type = TSDB_DATA_TYPE_BIGINT;
-    params[i+5].buffer_length = sizeof(int64_t);
-    params[i+5].buffer = v.v8;
-    params[i+5].length = NULL;
-    params[i+5].is_null = is_null;
-    params[i+5].num = 60;
-
-    params[i+6].buffer_type = TSDB_DATA_TYPE_FLOAT;
-    params[i+6].buffer_length = sizeof(float);
-    params[i+6].buffer = v.f4;
-    params[i+6].length = NULL;
-    params[i+6].is_null = is_null;
-    params[i+6].num = 60;
-
-    params[i+7].buffer_type = TSDB_DATA_TYPE_DOUBLE;
-    params[i+7].buffer_length = sizeof(double);
-    params[i+7].buffer = v.f8;
-    params[i+7].length = NULL;
-    params[i+7].is_null = is_null;
-    params[i+7].num = 60;
-
-    params[i+8].buffer_type = TSDB_DATA_TYPE_BINARY;
-    params[i+8].buffer_length = 40;
-    params[i+8].buffer = v.bin;
-    params[i+8].length = lb;
-    params[i+8].is_null = is_null;
-    params[i+8].num = 60;
-
-    params[i+9].buffer_type = TSDB_DATA_TYPE_BINARY;
-    params[i+9].buffer_length = 40;
-    params[i+9].buffer = v.bin;
-    params[i+9].length = lb;
-    params[i+9].is_null = is_null;
-    params[i+9].num = 60;
-    
-  }
-
-  int64_t tts = 1591060628000;
-  for (int i = 0; i < 54000000; ++i) {
-    v.ts[i] = tts;
-  }
-
-  unsigned long long starttime = taosGetTimestampUs();
-
-  char *sql = "insert into ? values(?,?,?,?,?,?,?,?,?,?)";
-  int code = taos_stmt_prepare(stmt, sql, 0);
-  if (code != 0){
-    printf("failed to execute taos_stmt_prepare. code:0x%x\n", code);
-  }
-
-  int id = 0;
-  for (int l = 0; l < 3000; l++) {
-    for (int zz = 0; zz < 300; zz++) {
-      char buf[32];
-      sprintf(buf, "m%d", zz);
-      code = taos_stmt_set_tbname(stmt, buf);
-      if (code != 0){
-        printf("failed to execute taos_stmt_set_tbname. code:0x%x\n", code);
-      }  
-
-      taos_stmt_bind_param_batch(stmt, params + id * 10);
-      taos_stmt_add_batch(stmt);
-    }
- 
-    if (taos_stmt_execute(stmt) != 0) {
-      printf("failed to execute insert statement.\n");
-      exit(1);
-    }
-
-    ++id;
-  }
-
-  unsigned long long endtime = taosGetTimestampUs();
-  printf("insert total %d records, used %u seconds, avg:%u useconds\n", 3000*300*60, (endtime-starttime)/1000000UL, (endtime-starttime)/(3000*300*60));
-
-  taosMemoryFree(v.ts);  
-  taosMemoryFree(lb);
-  taosMemoryFree(params);
-  taosMemoryFree(is_null);
-  taosMemoryFree(no_null);
-
-  return 0;
-}
-
-
-
-
-//1table 18000 reocrds
-int stmt_funcb5(TAOS_STMT *stmt) {
-  struct {
-      int64_t *ts;
-      int8_t b[18000];
-      int8_t v1[18000];
-      int16_t v2[18000];
-      int32_t v4[18000];
-      int64_t v8[18000];
-      float f4[18000];
-      double f8[18000];
-      char bin[18000][40];
-  } v = {0};
-
-  v.ts = taosMemoryMalloc(sizeof(int64_t) * 900000 * 60);
-  
-  int *lb = taosMemoryMalloc(18000 * sizeof(int));
-  
-  TAOS_MULTI_BIND *params = taosMemoryCalloc(1, sizeof(TAOS_MULTI_BIND) * 3000*10);
-  char* is_null = taosMemoryMalloc(sizeof(char) * 18000);
-  char* no_null = taosMemoryMalloc(sizeof(char) * 18000);
-
-  for (int i = 0; i < 18000; ++i) {
-    lb[i] = 40;
-    no_null[i] = 0;
-    is_null[i] = (i % 10 == 2) ? 1 : 0;
-    v.b[i] = (int8_t)(i % 2);
-    v.v1[i] = (int8_t)((i+1) % 2);
-    v.v2[i] = (int16_t)i;
-    v.v4[i] = (int32_t)(i+1);
-    v.v8[i] = (int64_t)(i+2);
-    v.f4[i] = (float)(i+3);
-    v.f8[i] = (double)(i+4);
-    memset(v.bin[i], '0'+i%10, 40);
-  }
-  
-  for (int i = 0; i < 30000; i+=10) {
-    params[i+0].buffer_type = TSDB_DATA_TYPE_TIMESTAMP;
-    params[i+0].buffer_length = sizeof(int64_t);
-    params[i+0].buffer = &v.ts[18000*i/10];
-    params[i+0].length = NULL;
-    params[i+0].is_null = no_null;
-    params[i+0].num = 18000;
-    
-    params[i+1].buffer_type = TSDB_DATA_TYPE_BOOL;
-    params[i+1].buffer_length = sizeof(int8_t);
-    params[i+1].buffer = v.b;
-    params[i+1].length = NULL;
-    params[i+1].is_null = is_null;
-    params[i+1].num = 18000;
-
-    params[i+2].buffer_type = TSDB_DATA_TYPE_TINYINT;
-    params[i+2].buffer_length = sizeof(int8_t);
-    params[i+2].buffer = v.v1;
-    params[i+2].length = NULL;
-    params[i+2].is_null = is_null;
-    params[i+2].num = 18000;
-
-    params[i+3].buffer_type = TSDB_DATA_TYPE_SMALLINT;
-    params[i+3].buffer_length = sizeof(int16_t);
-    params[i+3].buffer = v.v2;
-    params[i+3].length = NULL;
-    params[i+3].is_null = is_null;
-    params[i+3].num = 18000;
-
-    params[i+4].buffer_type = TSDB_DATA_TYPE_INT;
-    params[i+4].buffer_length = sizeof(int32_t);
-    params[i+4].buffer = v.v4;
-    params[i+4].length = NULL;
-    params[i+4].is_null = is_null;
-    params[i+4].num = 18000;
-
-    params[i+5].buffer_type = TSDB_DATA_TYPE_BIGINT;
-    params[i+5].buffer_length = sizeof(int64_t);
-    params[i+5].buffer = v.v8;
-    params[i+5].length = NULL;
-    params[i+5].is_null = is_null;
-    params[i+5].num = 18000;
-
-    params[i+6].buffer_type = TSDB_DATA_TYPE_FLOAT;
-    params[i+6].buffer_length = sizeof(float);
-    params[i+6].buffer = v.f4;
-    params[i+6].length = NULL;
-    params[i+6].is_null = is_null;
-    params[i+6].num = 18000;
-
-    params[i+7].buffer_type = TSDB_DATA_TYPE_DOUBLE;
-    params[i+7].buffer_length = sizeof(double);
-    params[i+7].buffer = v.f8;
-    params[i+7].length = NULL;
-    params[i+7].is_null = is_null;
-    params[i+7].num = 18000;
-
-    params[i+8].buffer_type = TSDB_DATA_TYPE_BINARY;
-    params[i+8].buffer_length = 40;
-    params[i+8].buffer = v.bin;
-    params[i+8].length = lb;
-    params[i+8].is_null = is_null;
-    params[i+8].num = 18000;
-
-    params[i+9].buffer_type = TSDB_DATA_TYPE_BINARY;
-    params[i+9].buffer_length = 40;
-    params[i+9].buffer = v.bin;
-    params[i+9].length = lb;
-    params[i+9].is_null = is_null;
-    params[i+9].num = 18000;
-    
-  }
-
-  int64_t tts = 1591060628000;
-  for (int i = 0; i < 54000000; ++i) {
-    v.ts[i] = tts + i;
-  }
-
-  unsigned long long starttime = taosGetTimestampUs();
-
-  char *sql = "insert into m0 values(?,?,?,?,?,?,?,?,?,?)";
-  int code = taos_stmt_prepare(stmt, sql, 0);
-  if (code != 0){
-    printf("failed to execute taos_stmt_prepare. code:0x%x\n", code);
-  }
-
-  int id = 0;
-  for (int l = 0; l < 10; l++) {
-    for (int zz = 0; zz < 1; zz++) {
-      taos_stmt_bind_param_batch(stmt, params + id * 10);
-      taos_stmt_add_batch(stmt);
-
-      if (taos_stmt_execute(stmt) != 0) {
-        printf("failed to execute insert statement.\n");
-        exit(1);
-      }
-      ++id;
-
-    }
- 
-  }
-
-  unsigned long long endtime = taosGetTimestampUs();
-  printf("insert total %d records, used %u seconds, avg:%u useconds\n", 3000*300*60, (endtime-starttime)/1000000UL, (endtime-starttime)/(3000*300*60));
-
-  taosMemoryFree(v.ts);  
-  taosMemoryFree(lb);
-  taosMemoryFree(params);
-  taosMemoryFree(is_null);
-  taosMemoryFree(no_null);
-
-  return 0;
-}
-
-
-//1table 200000 reocrds
-int stmt_funcb_ssz1(TAOS_STMT *stmt) {
-  struct {
-      int64_t *ts;
-      int b[30000];
-  } v = {0};
-
-  v.ts = taosMemoryMalloc(sizeof(int64_t) * 30000 * 3000);
-  
-  int *lb = taosMemoryMalloc(30000 * sizeof(int));
-  
-  TAOS_MULTI_BIND *params = taosMemoryCalloc(1, sizeof(TAOS_MULTI_BIND) * 3000*10);
-  char* no_null = taosMemoryMalloc(sizeof(int) * 200000);
-
-  for (int i = 0; i < 30000; ++i) {
-    lb[i] = 40;
-    no_null[i] = 0;
-    v.b[i] = (int8_t)(i % 2);
-  }
-  
-  for (int i = 0; i < 30000; i+=10) {
-    params[i+0].buffer_type = TSDB_DATA_TYPE_TIMESTAMP;
-    params[i+0].buffer_length = sizeof(int64_t);
-    params[i+0].buffer = &v.ts[30000*i/10];
-    params[i+0].length = NULL;
-    params[i+0].is_null = no_null;
-    params[i+0].num = 30000;
-    
-    params[i+1].buffer_type = TSDB_DATA_TYPE_INT;
-    params[i+1].buffer_length = sizeof(int);
-    params[i+1].buffer = v.b;
-    params[i+1].length = NULL;
-    params[i+1].is_null = no_null;
-    params[i+1].num = 30000;
-  }
-
-  int64_t tts = 0;
-  for (int64_t i = 0; i < 90000000LL; ++i) {
-    v.ts[i] = tts + i;
-  }
-
-  unsigned long long starttime = taosGetTimestampUs();
-
-  char *sql = "insert into ? values(?,?)";
-  int code = taos_stmt_prepare(stmt, sql, 0);
-  if (code != 0){
-    printf("failed to execute taos_stmt_prepare. code:0x%x\n", code);
-  }
-
-  int id = 0;
-  for (int l = 0; l < 10; l++) {
-    for (int zz = 0; zz < 300; zz++) {
-      char buf[32];
-      sprintf(buf, "m%d", zz);
-      code = taos_stmt_set_tbname(stmt, buf);
-      if (code != 0){
-        printf("failed to execute taos_stmt_set_tbname. code:0x%x\n", code);
-      }  
-
-      taos_stmt_bind_param_batch(stmt, params + id * 10);
-      taos_stmt_add_batch(stmt);
-
-      if (taos_stmt_execute(stmt) != 0) {
-        printf("failed to execute insert statement.\n");
-        exit(1);
-      }
-      ++id;
-
-    }
- 
-  }
-
-  unsigned long long endtime = taosGetTimestampUs();
-  printf("insert total %d records, used %u seconds, avg:%u useconds\n", 3000*300*60, (endtime-starttime)/1000000UL, (endtime-starttime)/(3000*300*60));
-
-  taosMemoryFree(v.ts);  
-  taosMemoryFree(lb);
-  taosMemoryFree(params);
-  taosMemoryFree(no_null);
-
-  return 0;
-}
-
-
-//one table 60 records one time
-int stmt_funcb_s1(TAOS_STMT *stmt) {
-  struct {
-      int64_t *ts;
-      int8_t b[60];
-      int8_t v1[60];
-      int16_t v2[60];
-      int32_t v4[60];
-      int64_t v8[60];
-      float f4[60];
-      double f8[60];
-      char bin[60][40];
-  } v = {0};
-
-  v.ts = taosMemoryMalloc(sizeof(int64_t) * 900000 * 60);
-  
-  int *lb = taosMemoryMalloc(60 * sizeof(int));
-  
-  TAOS_MULTI_BIND *params = taosMemoryCalloc(1, sizeof(TAOS_MULTI_BIND) * 900000*10);
-  char* is_null = taosMemoryMalloc(sizeof(char) * 60);
-  char* no_null = taosMemoryMalloc(sizeof(char) * 60);
-
-  for (int i = 0; i < 60; ++i) {
-    lb[i] = 40;
-    no_null[i] = 0;
-    is_null[i] = (i % 10 == 2) ? 1 : 0;
-    v.b[i] = (int8_t)(i % 2);
-    v.v1[i] = (int8_t)((i+1) % 2);
-    v.v2[i] = (int16_t)i;
-    v.v4[i] = (int32_t)(i+1);
-    v.v8[i] = (int64_t)(i+2);
-    v.f4[i] = (float)(i+3);
-    v.f8[i] = (double)(i+4);
-    memset(v.bin[i], '0'+i%10, 40);
-  }
-  
-  for (int i = 0; i < 9000000; i+=10) {
-    params[i+0].buffer_type = TSDB_DATA_TYPE_TIMESTAMP;
-    params[i+0].buffer_length = sizeof(int64_t);
-    params[i+0].buffer = &v.ts[60*i/10];
-    params[i+0].length = NULL;
-    params[i+0].is_null = no_null;
-    params[i+0].num = 60;
-    
-    params[i+1].buffer_type = TSDB_DATA_TYPE_BOOL;
-    params[i+1].buffer_length = sizeof(int8_t);
-    params[i+1].buffer = v.b;
-    params[i+1].length = NULL;
-    params[i+1].is_null = is_null;
-    params[i+1].num = 60;
-
-    params[i+2].buffer_type = TSDB_DATA_TYPE_TINYINT;
-    params[i+2].buffer_length = sizeof(int8_t);
-    params[i+2].buffer = v.v1;
-    params[i+2].length = NULL;
-    params[i+2].is_null = is_null;
-    params[i+2].num = 60;
-
-    params[i+3].buffer_type = TSDB_DATA_TYPE_SMALLINT;
-    params[i+3].buffer_length = sizeof(int16_t);
-    params[i+3].buffer = v.v2;
-    params[i+3].length = NULL;
-    params[i+3].is_null = is_null;
-    params[i+3].num = 60;
-
-    params[i+4].buffer_type = TSDB_DATA_TYPE_INT;
-    params[i+4].buffer_length = sizeof(int32_t);
-    params[i+4].buffer = v.v4;
-    params[i+4].length = NULL;
-    params[i+4].is_null = is_null;
-    params[i+4].num = 60;
-
-    params[i+5].buffer_type = TSDB_DATA_TYPE_BIGINT;
-    params[i+5].buffer_length = sizeof(int64_t);
-    params[i+5].buffer = v.v8;
-    params[i+5].length = NULL;
-    params[i+5].is_null = is_null;
-    params[i+5].num = 60;
-
-    params[i+6].buffer_type = TSDB_DATA_TYPE_FLOAT;
-    params[i+6].buffer_length = sizeof(float);
-    params[i+6].buffer = v.f4;
-    params[i+6].length = NULL;
-    params[i+6].is_null = is_null;
-    params[i+6].num = 60;
-
-    params[i+7].buffer_type = TSDB_DATA_TYPE_DOUBLE;
-    params[i+7].buffer_length = sizeof(double);
-    params[i+7].buffer = v.f8;
-    params[i+7].length = NULL;
-    params[i+7].is_null = is_null;
-    params[i+7].num = 60;
-
-    params[i+8].buffer_type = TSDB_DATA_TYPE_BINARY;
-    params[i+8].buffer_length = 40;
-    params[i+8].buffer = v.bin;
-    params[i+8].length = lb;
-    params[i+8].is_null = is_null;
-    params[i+8].num = 60;
-
-    params[i+9].buffer_type = TSDB_DATA_TYPE_BINARY;
-    params[i+9].buffer_length = 40;
-    params[i+9].buffer = v.bin;
-    params[i+9].length = lb;
-    params[i+9].is_null = is_null;
-    params[i+9].num = 60;
-    
-  }
-
-  int64_t tts = 1591060628000;
-  for (int i = 0; i < 54000000; ++i) {
-    v.ts[i] = tts + i;
-  }
-
-  unsigned long long starttime = taosGetTimestampUs();
-
-  char *sql = "insert into ? values(?,?,?,?,?,?,?,?,?,?)";
-  int code = taos_stmt_prepare(stmt, sql, 0);
-  if (code != 0){
-    printf("failed to execute taos_stmt_prepare. code:0x%x\n", code);
-  }
-
-  int id = 0;
-  for (int l = 0; l < 3000; l++) {
-    for (int zz = 0; zz < 300; zz++) {
-      char buf[32];
-      sprintf(buf, "m%d", zz);
-      code = taos_stmt_set_tbname(stmt, buf);
-      if (code != 0){
-        printf("failed to execute taos_stmt_set_tbname. code:0x%x\n", code);
-      }  
-
-      taos_stmt_bind_param_batch(stmt, params + id * 10);
-      taos_stmt_add_batch(stmt);
-
-      if (taos_stmt_execute(stmt) != 0) {
-        printf("failed to execute insert statement.\n");
-        exit(1);
-      }
-      
-      ++id;
-    }
- 
-  }
-
-  unsigned long long endtime = taosGetTimestampUs();
-  printf("insert total %d records, used %u seconds, avg:%u useconds\n", 3000*300*60, (endtime-starttime)/1000000UL, (endtime-starttime)/(3000*300*60));
-
-  taosMemoryFree(v.ts);  
-  taosMemoryFree(lb);
-  taosMemoryFree(params);
-  taosMemoryFree(is_null);
-  taosMemoryFree(no_null);
-
-  return 0;
-}
-
-
-
-
-
-
-//300 tables 60 records single column bind
-int stmt_funcb_sc1(TAOS_STMT *stmt) {
-  struct {
-      int64_t *ts;
-      int8_t b[60];
-      int8_t v1[60];
-      int16_t v2[60];
-      int32_t v4[60];
-      int64_t v8[60];
-      float f4[60];
-      double f8[60];
-      char bin[60][40];
-  } v = {0};
-
-  v.ts = taosMemoryMalloc(sizeof(int64_t) * 900000 * 60);
-  
-  int *lb = taosMemoryMalloc(60 * sizeof(int));
-  
-  TAOS_MULTI_BIND *params = taosMemoryCalloc(1, sizeof(TAOS_MULTI_BIND) * 900000*10);
-  char* is_null = taosMemoryMalloc(sizeof(char) * 60);
-  char* no_null = taosMemoryMalloc(sizeof(char) * 60);
-
-  for (int i = 0; i < 60; ++i) {
-    lb[i] = 40;
-    no_null[i] = 0;
-    is_null[i] = (i % 10 == 2) ? 1 : 0;
-    v.b[i] = (int8_t)(i % 2);
-    v.v1[i] = (int8_t)((i+1) % 2);
-    v.v2[i] = (int16_t)i;
-    v.v4[i] = (int32_t)(i+1);
-    v.v8[i] = (int64_t)(i+2);
-    v.f4[i] = (float)(i+3);
-    v.f8[i] = (double)(i+4);
-    memset(v.bin[i], '0'+i%10, 40);
-  }
-  
-  for (int i = 0; i < 9000000; i+=10) {
-    params[i+0].buffer_type = TSDB_DATA_TYPE_TIMESTAMP;
-    params[i+0].buffer_length = sizeof(int64_t);
-    params[i+0].buffer = &v.ts[60*i/10];
-    params[i+0].length = NULL;
-    params[i+0].is_null = no_null;
-    params[i+0].num = 60;
-    
-    params[i+1].buffer_type = TSDB_DATA_TYPE_BOOL;
-    params[i+1].buffer_length = sizeof(int8_t);
-    params[i+1].buffer = v.b;
-    params[i+1].length = NULL;
-    params[i+1].is_null = is_null;
-    params[i+1].num = 60;
-
-    params[i+2].buffer_type = TSDB_DATA_TYPE_TINYINT;
-    params[i+2].buffer_length = sizeof(int8_t);
-    params[i+2].buffer = v.v1;
-    params[i+2].length = NULL;
-    params[i+2].is_null = is_null;
-    params[i+2].num = 60;
-
-    params[i+3].buffer_type = TSDB_DATA_TYPE_SMALLINT;
-    params[i+3].buffer_length = sizeof(int16_t);
-    params[i+3].buffer = v.v2;
-    params[i+3].length = NULL;
-    params[i+3].is_null = is_null;
-    params[i+3].num = 60;
-
-    params[i+4].buffer_type = TSDB_DATA_TYPE_INT;
-    params[i+4].buffer_length = sizeof(int32_t);
-    params[i+4].buffer = v.v4;
-    params[i+4].length = NULL;
-    params[i+4].is_null = is_null;
-    params[i+4].num = 60;
-
-    params[i+5].buffer_type = TSDB_DATA_TYPE_BIGINT;
-    params[i+5].buffer_length = sizeof(int64_t);
-    params[i+5].buffer = v.v8;
-    params[i+5].length = NULL;
-    params[i+5].is_null = is_null;
-    params[i+5].num = 60;
-
-    params[i+6].buffer_type = TSDB_DATA_TYPE_FLOAT;
-    params[i+6].buffer_length = sizeof(float);
-    params[i+6].buffer = v.f4;
-    params[i+6].length = NULL;
-    params[i+6].is_null = is_null;
-    params[i+6].num = 60;
-
-    params[i+7].buffer_type = TSDB_DATA_TYPE_DOUBLE;
-    params[i+7].buffer_length = sizeof(double);
-    params[i+7].buffer = v.f8;
-    params[i+7].length = NULL;
-    params[i+7].is_null = is_null;
-    params[i+7].num = 60;
-
-    params[i+8].buffer_type = TSDB_DATA_TYPE_BINARY;
-    params[i+8].buffer_length = 40;
-    params[i+8].buffer = v.bin;
-    params[i+8].length = lb;
-    params[i+8].is_null = is_null;
-    params[i+8].num = 60;
-
-    params[i+9].buffer_type = TSDB_DATA_TYPE_BINARY;
-    params[i+9].buffer_length = 40;
-    params[i+9].buffer = v.bin;
-    params[i+9].length = lb;
-    params[i+9].is_null = is_null;
-    params[i+9].num = 60;
-    
-  }
-
-  int64_t tts = 1591060628000;
-  for (int i = 0; i < 54000000; ++i) {
-    v.ts[i] = tts + i;
-  }
-
-  unsigned long long starttime = taosGetTimestampUs();
-
-  char *sql = "insert into ? values(?,?,?,?,?,?,?,?,?,?)";
-  int code = taos_stmt_prepare(stmt, sql, 0);
-  if (code != 0){
-    printf("failed to execute taos_stmt_prepare. code:0x%x\n", code);
-  }
-
-  int id = 0;
-  for (int l = 0; l < 3000; l++) {
-    for (int zz = 0; zz < 300; zz++) {
-      char buf[32];
-      sprintf(buf, "m%d", zz);
-      code = taos_stmt_set_tbname(stmt, buf);
-      if (code != 0){
-        printf("failed to execute taos_stmt_set_tbname. code:0x%x\n", code);
-      }  
-
-      for (int col=0; col < 10; ++col) {
-        taos_stmt_bind_single_param_batch(stmt, params + id++, col);
-      }
-      
-      taos_stmt_add_batch(stmt);
-    }
- 
-    if (taos_stmt_execute(stmt) != 0) {
-      printf("failed to execute insert statement.\n");
-      exit(1);
-    }
-  }
-
-  unsigned long long endtime = taosGetTimestampUs();
-  printf("insert total %d records, used %u seconds, avg:%u useconds\n", 3000*300*60, (endtime-starttime)/1000000UL, (endtime-starttime)/(3000*300*60));
-
-  taosMemoryFree(v.ts);  
-  taosMemoryFree(lb);
-  taosMemoryFree(params);
-  taosMemoryFree(is_null);
-  taosMemoryFree(no_null);
-
-  return 0;
-}
-
-
-//1 tables 60 records single column bind
-int stmt_funcb_sc2(TAOS_STMT *stmt) {
-  struct {
-      int64_t *ts;
-      int8_t b[60];
-      int8_t v1[60];
-      int16_t v2[60];
-      int32_t v4[60];
-      int64_t v8[60];
-      float f4[60];
-      double f8[60];
-      char bin[60][40];
-  } v = {0};
-
-  v.ts = taosMemoryMalloc(sizeof(int64_t) * 900000 * 60);
-  
-  int *lb = taosMemoryMalloc(60 * sizeof(int));
-  
-  TAOS_MULTI_BIND *params = taosMemoryCalloc(1, sizeof(TAOS_MULTI_BIND) * 900000*10);
-  char* is_null = taosMemoryMalloc(sizeof(char) * 60);
-  char* no_null = taosMemoryMalloc(sizeof(char) * 60);
-
-  for (int i = 0; i < 60; ++i) {
-    lb[i] = 40;
-    no_null[i] = 0;
-    is_null[i] = (i % 10 == 2) ? 1 : 0;
-    v.b[i] = (int8_t)(i % 2);
-    v.v1[i] = (int8_t)((i+1) % 2);
-    v.v2[i] = (int16_t)i;
-    v.v4[i] = (int32_t)(i+1);
-    v.v8[i] = (int64_t)(i+2);
-    v.f4[i] = (float)(i+3);
-    v.f8[i] = (double)(i+4);
-    memset(v.bin[i], '0'+i%10, 40);
-  }
-  
-  for (int i = 0; i < 9000000; i+=10) {
-    params[i+0].buffer_type = TSDB_DATA_TYPE_TIMESTAMP;
-    params[i+0].buffer_length = sizeof(int64_t);
-    params[i+0].buffer = &v.ts[60*i/10];
-    params[i+0].length = NULL;
-    params[i+0].is_null = no_null;
-    params[i+0].num = 60;
-    
-    params[i+1].buffer_type = TSDB_DATA_TYPE_BOOL;
-    params[i+1].buffer_length = sizeof(int8_t);
-    params[i+1].buffer = v.b;
-    params[i+1].length = NULL;
-    params[i+1].is_null = is_null;
-    params[i+1].num = 60;
-
-    params[i+2].buffer_type = TSDB_DATA_TYPE_TINYINT;
-    params[i+2].buffer_length = sizeof(int8_t);
-    params[i+2].buffer = v.v1;
-    params[i+2].length = NULL;
-    params[i+2].is_null = is_null;
-    params[i+2].num = 60;
-
-    params[i+3].buffer_type = TSDB_DATA_TYPE_SMALLINT;
-    params[i+3].buffer_length = sizeof(int16_t);
-    params[i+3].buffer = v.v2;
-    params[i+3].length = NULL;
-    params[i+3].is_null = is_null;
-    params[i+3].num = 60;
-
-    params[i+4].buffer_type = TSDB_DATA_TYPE_INT;
-    params[i+4].buffer_length = sizeof(int32_t);
-    params[i+4].buffer = v.v4;
-    params[i+4].length = NULL;
-    params[i+4].is_null = is_null;
-    params[i+4].num = 60;
-
-    params[i+5].buffer_type = TSDB_DATA_TYPE_BIGINT;
-    params[i+5].buffer_length = sizeof(int64_t);
-    params[i+5].buffer = v.v8;
-    params[i+5].length = NULL;
-    params[i+5].is_null = is_null;
-    params[i+5].num = 60;
-
-    params[i+6].buffer_type = TSDB_DATA_TYPE_FLOAT;
-    params[i+6].buffer_length = sizeof(float);
-    params[i+6].buffer = v.f4;
-    params[i+6].length = NULL;
-    params[i+6].is_null = is_null;
-    params[i+6].num = 60;
-
-    params[i+7].buffer_type = TSDB_DATA_TYPE_DOUBLE;
-    params[i+7].buffer_length = sizeof(double);
-    params[i+7].buffer = v.f8;
-    params[i+7].length = NULL;
-    params[i+7].is_null = is_null;
-    params[i+7].num = 60;
-
-    params[i+8].buffer_type = TSDB_DATA_TYPE_BINARY;
-    params[i+8].buffer_length = 40;
-    params[i+8].buffer = v.bin;
-    params[i+8].length = lb;
-    params[i+8].is_null = is_null;
-    params[i+8].num = 60;
-
-    params[i+9].buffer_type = TSDB_DATA_TYPE_BINARY;
-    params[i+9].buffer_length = 40;
-    params[i+9].buffer = v.bin;
-    params[i+9].length = lb;
-    params[i+9].is_null = is_null;
-    params[i+9].num = 60;
-    
-  }
-
-  int64_t tts = 1591060628000;
-  for (int i = 0; i < 54000000; ++i) {
-    v.ts[i] = tts + i;
-  }
-
-  unsigned long long starttime = taosGetTimestampUs();
-
-  char *sql = "insert into ? values(?,?,?,?,?,?,?,?,?,?)";
-  int code = taos_stmt_prepare(stmt, sql, 0);
-  if (code != 0){
-    printf("failed to execute taos_stmt_prepare. code:0x%x\n", code);
-  }
-
-  int id = 0;
-  for (int l = 0; l < 3000; l++) {
-    for (int zz = 0; zz < 300; zz++) {
-      char buf[32];
-      sprintf(buf, "m%d", zz);
-      code = taos_stmt_set_tbname(stmt, buf);
-      if (code != 0){
-        printf("failed to execute taos_stmt_set_tbname. code:0x%x\n", code);
-      }  
-
-      for (int col=0; col < 10; ++col) {
-        taos_stmt_bind_single_param_batch(stmt, params + id++, col);
-      }
-      
-      taos_stmt_add_batch(stmt);
-
-      if (taos_stmt_execute(stmt) != 0) {
-        printf("failed to execute insert statement.\n");
-        exit(1);
-      }
-
-    }
- 
-  }
-
-  unsigned long long endtime = taosGetTimestampUs();
-  printf("insert total %d records, used %u seconds, avg:%u useconds\n", 3000*300*60, (endtime-starttime)/1000000UL, (endtime-starttime)/(3000*300*60));
-
-  taosMemoryFree(v.ts);  
-  taosMemoryFree(lb);
-  taosMemoryFree(params);
-  taosMemoryFree(is_null);
-  taosMemoryFree(no_null);
-
-  return 0;
-}
-
-
-//10 tables [1...10] records single column bind
-int stmt_funcb_sc3(TAOS_STMT *stmt) {
-  struct {
-      int64_t *ts;
-      int8_t b[60];
-      int8_t v1[60];
-      int16_t v2[60];
-      int32_t v4[60];
-      int64_t v8[60];
-      float f4[60];
-      double f8[60];
-      char bin[60][40];
-  } v = {0};
-
-  v.ts = taosMemoryMalloc(sizeof(int64_t) * 60);
-  
-  int *lb = taosMemoryMalloc(60 * sizeof(int));
-  
-  TAOS_MULTI_BIND *params = taosMemoryCalloc(1, sizeof(TAOS_MULTI_BIND) * 60*10);
-  char* is_null = taosMemoryMalloc(sizeof(char) * 60);
-  char* no_null = taosMemoryMalloc(sizeof(char) * 60);
-
-  for (int i = 0; i < 60; ++i) {
-    lb[i] = 40;
-    no_null[i] = 0;
-    is_null[i] = (i % 10 == 2) ? 1 : 0;
-    v.b[i] = (int8_t)(i % 2);
-    v.v1[i] = (int8_t)((i+1) % 2);
-    v.v2[i] = (int16_t)i;
-    v.v4[i] = (int32_t)(i+1);
-    v.v8[i] = (int64_t)(i+2);
-    v.f4[i] = (float)(i+3);
-    v.f8[i] = (double)(i+4);
-    memset(v.bin[i], '0'+i%10, 40);
-  }
-
-  int g = 0;
-  for (int i = 0; i < 600; i+=10) {
-    params[i+0].buffer_type = TSDB_DATA_TYPE_TIMESTAMP;
-    params[i+0].buffer_length = sizeof(int64_t);
-    params[i+0].buffer = &v.ts[i/10];
-    params[i+0].length = NULL;
-    params[i+0].is_null = no_null;
-    params[i+0].num = g%10+1;
-    
-    params[i+1].buffer_type = TSDB_DATA_TYPE_BOOL;
-    params[i+1].buffer_length = sizeof(int8_t);
-    params[i+1].buffer = v.b;
-    params[i+1].length = NULL;
-    params[i+1].is_null = is_null;
-    params[i+1].num = g%10+1;
-    
-    params[i+2].buffer_type = TSDB_DATA_TYPE_TINYINT;
-    params[i+2].buffer_length = sizeof(int8_t);
-    params[i+2].buffer = v.v1;
-    params[i+2].length = NULL;
-    params[i+2].is_null = is_null;
-    params[i+2].num = g%10+1;
-
-    params[i+3].buffer_type = TSDB_DATA_TYPE_SMALLINT;
-    params[i+3].buffer_length = sizeof(int16_t);
-    params[i+3].buffer = v.v2;
-    params[i+3].length = NULL;
-    params[i+3].is_null = is_null;
-    params[i+3].num = g%10+1;
-
-    params[i+4].buffer_type = TSDB_DATA_TYPE_INT;
-    params[i+4].buffer_length = sizeof(int32_t);
-    params[i+4].buffer = v.v4;
-    params[i+4].length = NULL;
-    params[i+4].is_null = is_null;
-    params[i+4].num = g%10+1;
-    
-    params[i+5].buffer_type = TSDB_DATA_TYPE_BIGINT;
-    params[i+5].buffer_length = sizeof(int64_t);
-    params[i+5].buffer = v.v8;
-    params[i+5].length = NULL;
-    params[i+5].is_null = is_null;
-    params[i+5].num = g%10+1;
-
-    params[i+6].buffer_type = TSDB_DATA_TYPE_FLOAT;
-    params[i+6].buffer_length = sizeof(float);
-    params[i+6].buffer = v.f4;
-    params[i+6].length = NULL;
-    params[i+6].is_null = is_null;
-    params[i+6].num = g%10+1;
-
-    params[i+7].buffer_type = TSDB_DATA_TYPE_DOUBLE;
-    params[i+7].buffer_length = sizeof(double);
-    params[i+7].buffer = v.f8;
-    params[i+7].length = NULL;
-    params[i+7].is_null = is_null;
-    params[i+7].num = g%10+1;
-
-    params[i+8].buffer_type = TSDB_DATA_TYPE_BINARY;
-    params[i+8].buffer_length = 40;
-    params[i+8].buffer = v.bin;
-    params[i+8].length = lb;
-    params[i+8].is_null = is_null;
-    params[i+8].num = g%10+1;
-
-    params[i+9].buffer_type = TSDB_DATA_TYPE_BINARY;
-    params[i+9].buffer_length = 40;
-    params[i+9].buffer = v.bin;
-    params[i+9].length = lb;
-    params[i+9].is_null = is_null;
-    params[i+9].num = g%10+1;
-    ++g;
-  }
-
-  int64_t tts = 1591060628000;
-  for (int i = 0; i < 60; ++i) {
-    v.ts[i] = tts + i;
-  }
-
-  unsigned long long starttime = taosGetTimestampUs();
-
-  char *sql = "insert into ? values(?,?,?,?,?,?,?,?,?,?)";
-  int code = taos_stmt_prepare(stmt, sql, 0);
-  if (code != 0){
-    printf("failed to execute taos_stmt_prepare. code:0x%x\n", code);
-  }
-
-  int id = 0;
-  for (int zz = 0; zz < 10; zz++) {
-    char buf[32];
-    sprintf(buf, "m%d", zz);
-    code = taos_stmt_set_tbname(stmt, buf);
-    if (code != 0){
-      printf("failed to execute taos_stmt_set_tbname. code:0x%x\n", code);
-    }  
-
-    for (int col=0; col < 10; ++col) {
-      taos_stmt_bind_single_param_batch(stmt, params + id++, col);
-    }
-    
-    taos_stmt_add_batch(stmt);
-  }
-
-  if (taos_stmt_execute(stmt) != 0) {
-    printf("failed to execute insert statement.\n");
-    exit(1);
-  }
-
-  unsigned long long endtime = taosGetTimestampUs();
-  printf("insert total %d records, used %u seconds, avg:%u useconds\n", 3000*300*60, (endtime-starttime)/1000000UL, (endtime-starttime)/(3000*300*60));
-
-  taosMemoryFree(v.ts);  
-  taosMemoryFree(lb);
-  taosMemoryFree(params);
-  taosMemoryFree(is_null);
-  taosMemoryFree(no_null);
-
-  return 0;
-}
 #endif