diff --git a/source/libs/scalar/src/filter.c b/source/libs/scalar/src/filter.c
index fe8aa77693..039e6693c2 100644
--- a/source/libs/scalar/src/filter.c
+++ b/source/libs/scalar/src/filter.c
@@ -3512,7 +3512,8 @@ void fltConvertToTsValueNode(SFltTreeStat *stat, SValueNode* valueNode) {
     valueNode->datum.i = 0;
   }
   taosMemoryFree(timeStr);
-  
+
+  valueNode->typeData = valueNode->datum.i;
   valueNode->node.resType.type = TSDB_DATA_TYPE_TIMESTAMP;
   valueNode->node.resType.bytes = tDataTypes[TSDB_DATA_TYPE_TIMESTAMP].bytes;
 }
diff --git a/source/libs/scalar/src/sclvector.c b/source/libs/scalar/src/sclvector.c
index 007f26ebc2..c9fcaeb32e 100644
--- a/source/libs/scalar/src/sclvector.c
+++ b/source/libs/scalar/src/sclvector.c
@@ -328,9 +328,10 @@ static FORCE_INLINE void varToBool(char *buf, SScalarParam* pOut, int32_t rowInd
 static FORCE_INLINE void varToNchar(char* buf, SScalarParam* pOut, int32_t rowIndex) {
   int32_t len = 0;
   int32_t inputLen = varDataLen(buf);
+  int32_t outputMaxLen = (inputLen + 1) * TSDB_NCHAR_SIZE + VARSTR_HEADER_SIZE;
 
-  char* t = taosMemoryCalloc(1,(inputLen + 1) * TSDB_NCHAR_SIZE + VARSTR_HEADER_SIZE);
-  /*int32_t resLen = */taosMbsToUcs4(varDataVal(buf), inputLen, (TdUcs4*) varDataVal(t), pOut->columnData->info.bytes, &len);
+  char* t = taosMemoryCalloc(1, outputMaxLen);
+  /*int32_t resLen = */taosMbsToUcs4(varDataVal(buf), inputLen, (TdUcs4*) varDataVal(t), outputMaxLen, &len);
   varDataSetLen(t, len);
 
   colDataAppend(pOut->columnData, rowIndex, t, false);
diff --git a/tests/script/api/batchprepare.c b/tests/script/api/batchprepare.c
index bf38412b75..adf38015ae 100644
--- a/tests/script/api/batchprepare.c
+++ b/tests/script/api/batchprepare.c
@@ -92,7 +92,8 @@ int insertMBMETest3(TAOS_STMT *stmt, TAOS *taos);
 int insertMBMETest4(TAOS_STMT *stmt, TAOS *taos);
 int insertMPMETest1(TAOS_STMT *stmt, TAOS *taos);
 int insertAUTOTest1(TAOS_STMT *stmt, TAOS *taos);
-int querySUBTTest1(TAOS_STMT *stmt, TAOS *taos);
+int queryColumnTest(TAOS_STMT *stmt, TAOS *taos);
+int queryMiscTest(TAOS_STMT *stmt, TAOS *taos);
 
 enum {
   TTYPE_INSERT = 1,
@@ -152,7 +153,8 @@ CaseCfg gCase[] = {
   // 22
   {"insert:AUTO1-FULL", tListLen(fullColList), fullColList, TTYPE_INSERT, true, true, insertAUTOTest1, 10, 10, 2, 0, 0, 0, 1, -1},
 
-  {"query:SUBT-FULL", tListLen(fullColList), fullColList, TTYPE_QUERY, false, false, querySUBTTest1, 10, 10, 1, 3, 0, 0, 1, 2},
+  {"query:SUBT-COLUMN", tListLen(fullColList), fullColList, TTYPE_QUERY, false, false, queryColumnTest, 10, 10, 1, 3, 0, 0, 1, 2},
+  {"query:SUBT-MISC",   tListLen(fullColList), fullColList, TTYPE_QUERY, false, false, queryMiscTest, 10, 10, 1, 3, 0, 0, 1, 2},
 
 };
 
@@ -1749,7 +1751,7 @@ int insertAUTOTest1(TAOS_STMT *stmt, TAOS *taos) {
 
 
 /* select * from table */
-int querySUBTTest1(TAOS_STMT *stmt, TAOS *taos) {
+int queryColumnTest(TAOS_STMT *stmt, TAOS *taos) {
   BindData data = {0};
 
   for (int32_t t = 0; t< gCurCase->tblNum; ++t) {
@@ -1795,7 +1797,7 @@ int querySUBTTest1(TAOS_STMT *stmt, TAOS *taos) {
 }
 
 /* value in query sql */
-int querySUBTTest2(TAOS_STMT *stmt, TAOS *taos) {
+int queryMiscTest(TAOS_STMT *stmt, TAOS *taos) {
   BindData data = {0};
 
   for (int32_t t = 0; t< gCurCase->tblNum; ++t) {
@@ -1862,1119 +1864,6 @@ int errorSQLTest1(TAOS_STMT *stmt, TAOS *taos) {
   return 0;
 }
 
-
-#if 0
-
-//1 tables 10 records
-int stmt_funcb_autoctb1(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);
-
-  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;
-  
-  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(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);
-    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_autoctb3(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_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].length = NULL;
-    params[i+2].is_null = is_null;
-    params[i+2].num = 10;
-
-    params[i+3].buffer_type = TSDB_DATA_TYPE_BIGINT;
-    params[i+3].buffer_length = sizeof(int64_t);
-    params[i+3].buffer = v.v8;
-    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_DOUBLE;
-    params[i+4].buffer_length = sizeof(double);
-    params[i+4].buffer = v.f8;
-    params[i+4].length = NULL;
-    params[i+4].is_null = is_null;
-    params[i+4].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') (ts,b,v4,v8,f8) 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 * 5);
-    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_e1(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_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 (id1,id2,id3,id4,id5,id6,id7,id8,id9) 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. error:%s\n", taos_stmt_errstr(stmt));
-    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. 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_autoctb_e2(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);
-
-  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, NULL);
-    if (code != 0){
-      printf("failed to execute taos_stmt_set_tbname_tags. code:%s\n", taos_stmt_errstr(stmt));
-      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_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};
-
-  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);
-
-
-  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) {
-  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);
-
-  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:%s\n", taos_stmt_errstr(stmt));
-    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. 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;
-}
-
-
-
-
-
-
-//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);
-
-  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;
-}
-
-#endif
-
-
 void prepareCheckResultImpl(TAOS     * taos, char *tname, bool printr, int expected, bool silent) {
   char sql[255] = "SELECT * FROM ";
   int32_t rows = 0;