diff --git a/examples/c/prepare.c b/examples/c/prepare.c
index 4f05b6fb4c..aee8400663 100644
--- a/examples/c/prepare.c
+++ b/examples/c/prepare.c
@@ -43,7 +43,7 @@ int main(int argc, char *argv[])
   taos_free_result(result);
 
   // create table
-  const char* sql = "create table m1 (ts timestamp, b bool, v1 tinyint, v2 smallint, v4 int, v8 bigint, f4 float, f8 double, bin binary(40), blob nchar(10))";
+  const char* sql = "create table m1 (ts timestamp, b bool, v1 tinyint, v2 smallint, v4 int, v8 bigint, f4 float, f8 double, bin binary(40), blob nchar(10), varbin varbinary(16))";
   result = taos_query(taos, sql);
   code = taos_errno(result);
   if (code != 0) {
@@ -68,6 +68,7 @@ int main(int argc, char *argv[])
       double f8;
       char bin[40];
       char blob[80];
+      int8_t varbin[16];
   } v = {0};
 
   int32_t boolLen = sizeof(int8_t);
@@ -80,7 +81,7 @@ int main(int argc, char *argv[])
   int32_t ncharLen = 30;
 
   stmt = taos_stmt_init(taos);
-  TAOS_MULTI_BIND params[10];
+  TAOS_MULTI_BIND params[11];
   params[0].buffer_type = TSDB_DATA_TYPE_TIMESTAMP;
   params[0].buffer_length = sizeof(v.ts);
   params[0].buffer = &v.ts;
@@ -152,9 +153,19 @@ int main(int argc, char *argv[])
   params[9].is_null = NULL;
   params[9].num = 1;
 
+  int8_t tmp[16] = {'a', 0, 1, 13, '1'};
+  int32_t vbinLen = 5;
+  memcpy(v.varbin, tmp, sizeof(v.varbin));
+  params[10].buffer_type = TSDB_DATA_TYPE_VARBINARY;
+  params[10].buffer_length = sizeof(v.varbin);
+  params[10].buffer = v.varbin;
+  params[10].length = &vbinLen;
+  params[10].is_null = NULL;
+  params[10].num = 1;
+
   char is_null = 1;
 
-  sql = "insert into m1 values(?,?,?,?,?,?,?,?,?,?)";
+  sql = "insert into m1 values(?,?,?,?,?,?,?,?,?,?,?)";
   code = taos_stmt_prepare(stmt, sql, 0);
   if (code != 0){
     printf("failed to execute taos_stmt_prepare. code:0x%x\n", code);
@@ -162,7 +173,7 @@ int main(int argc, char *argv[])
   v.ts = 1591060628000;
   for (int i = 0; i < 10; ++i) {
     v.ts += 1;
-    for (int j = 1; j < 10; ++j) {
+    for (int j = 1; j < 11; ++j) {
       params[j].is_null = ((i == j) ? &is_null : 0);
     }
     v.b = (int8_t)i % 2;
@@ -216,7 +227,7 @@ int main(int argc, char *argv[])
     printf("expect two rows, but %d rows are fetched\n", rows);
   }
 
-  taos_free_result(result);
+//  taos_free_result(result);
   taos_stmt_close(stmt);
 
   return 0;
diff --git a/examples/c/tmq.c b/examples/c/tmq.c
index 136c54b874..15ab4fcfc9 100644
--- a/examples/c/tmq.c
+++ b/examples/c/tmq.c
@@ -280,7 +280,7 @@ void consume_repeatly(tmq_t* tmq) {
 
     code = tmq_offset_seek(tmq, topic_name, p->vgId, p->begin);
     if (code != 0) {
-      fprintf(stderr, "failed to seek to %ld, reason:%s", p->begin, tmq_err2str(code));
+      fprintf(stderr, "failed to seek to %d, reason:%s", (int)p->begin, tmq_err2str(code));
     }
   }
 
diff --git a/source/client/src/clientMain.c b/source/client/src/clientMain.c
index 64bcd6d898..73b4ec2a74 100644
--- a/source/client/src/clientMain.c
+++ b/source/client/src/clientMain.c
@@ -387,8 +387,18 @@ int taos_print_row(char *str, TAOS_ROW row, TAOS_FIELD *fields, int num_fields)
         len += sprintf(str + len, "%lf", dv);
       } break;
 
+      case TSDB_DATA_TYPE_VARBINARY:{
+        void* data = NULL;
+        uint32_t size = 0;
+        int32_t charLen = varDataLen((char *)row[i] - VARSTR_HEADER_SIZE);
+        if(taosAscii2Hex(row[i], charLen, &data, &size) < 0){
+          break;
+        }
+        memcpy(str + len, data, size);
+        len += size;
+        taosMemoryFree(data);
+      }break;
       case TSDB_DATA_TYPE_BINARY:
-      case TSDB_DATA_TYPE_VARBINARY:
       case TSDB_DATA_TYPE_NCHAR:
       case TSDB_DATA_TYPE_GEOMETRY: {
         int32_t charLen = varDataLen((char *)row[i] - VARSTR_HEADER_SIZE);
diff --git a/source/client/src/clientRawBlockWrite.c b/source/client/src/clientRawBlockWrite.c
index 7ff007cd20..f5cdfeadad 100644
--- a/source/client/src/clientRawBlockWrite.c
+++ b/source/client/src/clientRawBlockWrite.c
@@ -522,9 +522,9 @@ static char* processAlterTable(SMqMetaRsp* metaRsp) {
           buf = parseTagDatatoJson(vAlterTbReq.pTagVal);
         } else {
           if(vAlterTbReq.tagType == TSDB_DATA_TYPE_VARBINARY){
-            buf = taosMemoryCalloc(vAlterTbReq.nTagVal + 1, 1);
+            buf = taosMemoryCalloc(vAlterTbReq.nTagVal*2 + 2 + 3, 1);
           }else{
-            buf = taosMemoryCalloc(vAlterTbReq.nTagVal + 1, 1);
+            buf = taosMemoryCalloc(vAlterTbReq.nTagVal + 3, 1);
           }
           dataConverToStr(buf, vAlterTbReq.tagType, vAlterTbReq.pTagVal, vAlterTbReq.nTagVal, NULL);
         }
diff --git a/source/libs/function/src/builtins.c b/source/libs/function/src/builtins.c
index 188a1fcd4d..96bb32dd98 100644
--- a/source/libs/function/src/builtins.c
+++ b/source/libs/function/src/builtins.c
@@ -314,7 +314,7 @@ static int32_t translateInOutStr(SFunctionNode* pFunc, char* pErrBuf, int32_t le
   }
 
   SExprNode* pPara1 = (SExprNode*)nodesListGetNode(pFunc->pParameterList, 0);
-  if (!IS_STR_DATA_TYPE(pPara1->resType.type)) {
+  if (TSDB_DATA_TYPE_VARBINARY == pPara1->resType.type || !IS_STR_DATA_TYPE(pPara1->resType.type)) {
     return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
   }
 
@@ -328,7 +328,7 @@ static int32_t translateTrimStr(SFunctionNode* pFunc, char* pErrBuf, int32_t len
   }
 
   SExprNode* pPara1 = (SExprNode*)nodesListGetNode(pFunc->pParameterList, 0);
-  if (!IS_STR_DATA_TYPE(pPara1->resType.type)) {
+  if (TSDB_DATA_TYPE_VARBINARY == pPara1->resType.type || !IS_STR_DATA_TYPE(pPara1->resType.type)) {
     return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
   }
 
@@ -1839,6 +1839,10 @@ static int32_t translateLength(SFunctionNode* pFunc, char* pErrBuf, int32_t len)
     return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
   }
 
+  if (TSDB_DATA_TYPE_VARBINARY == ((SExprNode*)nodesListGetNode(pFunc->pParameterList, 0))->resType.type) {
+    return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
+  }
+
   pFunc->node.resType = (SDataType){.bytes = tDataTypes[TSDB_DATA_TYPE_BIGINT].bytes, .type = TSDB_DATA_TYPE_BIGINT};
   return TSDB_CODE_SUCCESS;
 }
@@ -1867,6 +1871,10 @@ static int32_t translateConcatImpl(SFunctionNode* pFunc, char* pErrBuf, int32_t
   for (int32_t i = 0; i < numOfParams; ++i) {
     SNode*  pPara = nodesListGetNode(pFunc->pParameterList, i);
     uint8_t paraType = ((SExprNode*)pPara)->resType.type;
+    if (TSDB_DATA_TYPE_VARBINARY == paraType) {
+      return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
+    }
+
     if (!IS_STR_DATA_TYPE(paraType) && !IS_NULL_TYPE(paraType)) {
       return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
     }
@@ -1923,7 +1931,7 @@ static int32_t translateSubstr(SFunctionNode* pFunc, char* pErrBuf, int32_t len)
 
   uint8_t para0Type = pPara0->resType.type;
   uint8_t para1Type = pPara1->resType.type;
-  if (!IS_STR_DATA_TYPE(para0Type) || !IS_INTEGER_TYPE(para1Type)) {
+  if (TSDB_DATA_TYPE_VARBINARY == para0Type || !IS_STR_DATA_TYPE(para0Type) || !IS_INTEGER_TYPE(para1Type)) {
     return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
   }
 
@@ -1951,6 +1959,12 @@ static int32_t translateSubstr(SFunctionNode* pFunc, char* pErrBuf, int32_t len)
 static int32_t translateCast(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
   // The number of parameters has been limited by the syntax definition
 
+  SExprNode* pPara0 = (SExprNode*)nodesListGetNode(pFunc->pParameterList, 0);
+  uint8_t para0Type = pPara0->resType.type;
+  if (TSDB_DATA_TYPE_VARBINARY == para0Type) {
+    return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
+  }
+
   // The function return type has been set during syntax parsing
   uint8_t para2Type = pFunc->node.resType.type;
 
@@ -2022,7 +2036,7 @@ static int32_t translateToUnixtimestamp(SFunctionNode* pFunc, char* pErrBuf, int
   }
 
   uint8_t para1Type = ((SExprNode*)nodesListGetNode(pFunc->pParameterList, 0))->resType.type;
-  if (!IS_STR_DATA_TYPE(para1Type)) {
+  if (para1Type == TSDB_DATA_TYPE_VARBINARY || !IS_STR_DATA_TYPE(para1Type)) {
     return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
   }
 
@@ -2156,7 +2170,7 @@ static int32_t translateToJson(SFunctionNode* pFunc, char* pErrBuf, int32_t len)
   }
 
   SExprNode* pPara = (SExprNode*)nodesListGetNode(pFunc->pParameterList, 0);
-  if (QUERY_NODE_VALUE != nodeType(pPara) || (!IS_VAR_DATA_TYPE(pPara->resType.type))) {
+  if (QUERY_NODE_VALUE != nodeType(pPara) || TSDB_DATA_TYPE_VARBINARY == pPara->resType.type || (!IS_VAR_DATA_TYPE(pPara->resType.type))) {
     return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
   }
 
diff --git a/source/libs/parser/src/parAstCreater.c b/source/libs/parser/src/parAstCreater.c
index 342c0f390e..410365b05e 100644
--- a/source/libs/parser/src/parAstCreater.c
+++ b/source/libs/parser/src/parAstCreater.c
@@ -635,7 +635,7 @@ SNode* createCastFunctionNode(SAstCreateContext* pCxt, SNode* pExpr, SDataType d
   CHECK_OUT_OF_MEM(func);
   strcpy(func->functionName, "cast");
   func->node.resType = dt;
-  if (TSDB_DATA_TYPE_VARCHAR == dt.type || TSDB_DATA_TYPE_GEOMETRY == dt.type) {
+  if (TSDB_DATA_TYPE_VARCHAR == dt.type || TSDB_DATA_TYPE_GEOMETRY == dt.type || TSDB_DATA_TYPE_VARBINARY == dt.type) {
     func->node.resType.bytes = func->node.resType.bytes + VARSTR_HEADER_SIZE;
   } else if (TSDB_DATA_TYPE_NCHAR == dt.type) {
     func->node.resType.bytes = func->node.resType.bytes * TSDB_NCHAR_SIZE + VARSTR_HEADER_SIZE;
diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index e973694a04..2509272b33 100644
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -1258,7 +1258,7 @@ static EDealRes translateNormalValue(STranslateContext* pCxt, SValueNode* pVal,
         if(isHexChar) taosMemoryFree(data);
         return generateDealNodeErrMsg(pCxt, TSDB_CODE_OUT_OF_MEMORY);
       }
-      varDataSetLen(pVal->datum.p, size + VARSTR_HEADER_SIZE);
+      varDataSetLen(pVal->datum.p, size);
       memcpy(varDataVal(pVal->datum.p), data, size);
       if(isHexChar)  taosMemoryFree(data);
       break;
diff --git a/source/libs/parser/src/parser.c b/source/libs/parser/src/parser.c
index 10fda8741b..4034597eed 100644
--- a/source/libs/parser/src/parser.c
+++ b/source/libs/parser/src/parser.c
@@ -97,8 +97,16 @@ static int32_t setValueByBindParam(SValueNode* pVal, TAOS_MULTI_BIND* pParam) {
   pVal->node.resType.bytes = inputSize;
 
   switch (pParam->buffer_type) {
-    case TSDB_DATA_TYPE_VARCHAR:
     case TSDB_DATA_TYPE_VARBINARY:
+      pVal->datum.p = taosMemoryCalloc(1, pVal->node.resType.bytes + VARSTR_HEADER_SIZE + 1);
+      if (NULL == pVal->datum.p) {
+        return TSDB_CODE_OUT_OF_MEMORY;
+      }
+      varDataSetLen(pVal->datum.p, pVal->node.resType.bytes);
+      memcpy(varDataVal(pVal->datum.p), pParam->buffer, pVal->node.resType.bytes);
+      pVal->node.resType.bytes += VARSTR_HEADER_SIZE;
+      break;
+    case TSDB_DATA_TYPE_VARCHAR:
     case TSDB_DATA_TYPE_GEOMETRY:
       pVal->datum.p = taosMemoryCalloc(1, pVal->node.resType.bytes + VARSTR_HEADER_SIZE + 1);
       if (NULL == pVal->datum.p) {
diff --git a/source/libs/scalar/src/filter.c b/source/libs/scalar/src/filter.c
index 6cc235bd06..12729c3262 100644
--- a/source/libs/scalar/src/filter.c
+++ b/source/libs/scalar/src/filter.c
@@ -1990,6 +1990,8 @@ int32_t fltInitValFieldData(SFilterInfo *info) {
       // todo refactor the convert
       int32_t code = sclConvertValueToSclParam(var, &out, NULL);
       if (code != TSDB_CODE_SUCCESS) {
+        colDataDestroy(out.columnData);
+        taosMemoryFree(out.columnData);
         qError("convert value to type[%d] failed", type);
         return code;
       }
@@ -4678,10 +4680,10 @@ int32_t filterExecute(SFilterInfo *info, SSDataBlock *pSrc, SColumnInfoData **p,
     code = scalarCalculate(info->sclCtx.node, pList, &output);
     taosArrayDestroy(pList);
 
-    FLT_ERR_RET(code);
-
     *p = output.columnData;
 
+    FLT_ERR_RET(code);
+
     if (output.numOfQualified == output.numOfRows) {
       *pResultStatus = FILTER_RESULT_ALL_QUALIFIED;
     } else if (output.numOfQualified == 0) {
diff --git a/source/libs/scalar/src/scalar.c b/source/libs/scalar/src/scalar.c
index b3f67f2c9d..cc6be68c85 100644
--- a/source/libs/scalar/src/scalar.c
+++ b/source/libs/scalar/src/scalar.c
@@ -1193,6 +1193,7 @@ EDealRes sclRewriteFunction(SNode **pNode, SScalarCtx *ctx) {
 
   ctx->code = sclExecFunction(node, ctx, &output);
   if (ctx->code) {
+    sclFreeParam(&output);
     return DEAL_RES_ERROR;
   }
 
@@ -1241,10 +1242,12 @@ EDealRes sclRewriteLogic(SNode **pNode, SScalarCtx *ctx) {
   SScalarParam output = {0};
   ctx->code = sclExecLogic(node, ctx, &output);
   if (ctx->code) {
+    sclFreeParam(&output);
     return DEAL_RES_ERROR;
   }
 
   if (0 == output.numOfRows) {
+    sclFreeParam(&output);
     return DEAL_RES_CONTINUE;
   }
 
@@ -1341,6 +1344,7 @@ EDealRes sclRewriteCaseWhen(SNode **pNode, SScalarCtx *ctx) {
   SScalarParam output = {0};
   ctx->code = sclExecCaseWhen(node, ctx, &output);
   if (ctx->code) {
+    sclFreeParam(&output);
     return DEAL_RES_ERROR;
   }
 
@@ -1403,11 +1407,13 @@ EDealRes sclWalkFunction(SNode *pNode, SScalarCtx *ctx) {
 
   ctx->code = sclExecFunction(node, ctx, &output);
   if (ctx->code) {
+    sclFreeParam(&output);
     return DEAL_RES_ERROR;
   }
 
   if (taosHashPut(ctx->pRes, &pNode, POINTER_BYTES, &output, sizeof(output))) {
     ctx->code = TSDB_CODE_OUT_OF_MEMORY;
+    sclFreeParam(&output);
     return DEAL_RES_ERROR;
   }
 
@@ -1420,11 +1426,13 @@ EDealRes sclWalkLogic(SNode *pNode, SScalarCtx *ctx) {
 
   ctx->code = sclExecLogic(node, ctx, &output);
   if (ctx->code) {
+    sclFreeParam(&output);
     return DEAL_RES_ERROR;
   }
 
   if (taosHashPut(ctx->pRes, &pNode, POINTER_BYTES, &output, sizeof(output))) {
     ctx->code = TSDB_CODE_OUT_OF_MEMORY;
+    sclFreeParam(&output);
     return DEAL_RES_ERROR;
   }
 
@@ -1443,6 +1451,7 @@ EDealRes sclWalkOperator(SNode *pNode, SScalarCtx *ctx) {
 
   if (taosHashPut(ctx->pRes, &pNode, POINTER_BYTES, &output, sizeof(output))) {
     ctx->code = TSDB_CODE_OUT_OF_MEMORY;
+    sclFreeParam(&output);
     return DEAL_RES_ERROR;
   }
 
diff --git a/source/libs/scalar/src/sclfunc.c b/source/libs/scalar/src/sclfunc.c
index 821967dfa4..b3c2fbb42c 100644
--- a/source/libs/scalar/src/sclfunc.c
+++ b/source/libs/scalar/src/sclfunc.c
@@ -964,6 +964,17 @@ int32_t castFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutp
         }
         break;
       }
+      case TSDB_DATA_TYPE_VARBINARY:{
+        if (inputType == TSDB_DATA_TYPE_BINARY) {
+          int32_t len = TMIN(varDataLen(input), outputLen - VARSTR_HEADER_SIZE);
+          memcpy(varDataVal(output), varDataVal(input), len);
+          varDataSetLen(output, len);
+        }else{
+          code = TSDB_CODE_FUNC_FUNTION_PARA_TYPE;
+          goto _end;
+        }
+        break;
+      }
       case TSDB_DATA_TYPE_NCHAR: {
         int32_t outputCharLen = (outputLen - VARSTR_HEADER_SIZE) / TSDB_NCHAR_SIZE;
         int32_t len;
diff --git a/tests/parallel_test/cases.task b/tests/parallel_test/cases.task
index 2428fdb9a2..17d24c12b6 100644
--- a/tests/parallel_test/cases.task
+++ b/tests/parallel_test/cases.task
@@ -360,7 +360,7 @@
 ,,y,system-test,./pytest.sh python3 ./test.py -f 2-query/smaTest.py -R
 ,,y,system-test,./pytest.sh python3 ./test.py -f 0-others/sma_index.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 2-query/sml_TS-3724.py
-#,,y,system-test,./pytest.sh python3 ./test.py -f 2-query/varbinary.py
+,,y,system-test,./pytest.sh python3 ./test.py -f 2-query/varbinary.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 2-query/sml.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 2-query/sml.py -R
 ,,y,system-test,./pytest.sh python3 ./test.py -f 2-query/spread.py
diff --git a/tests/system-test/2-query/varbinary.py b/tests/system-test/2-query/varbinary.py
index 8f7032cdc3..8f8021c8ad 100644
--- a/tests/system-test/2-query/varbinary.py
+++ b/tests/system-test/2-query/varbinary.py
@@ -23,16 +23,16 @@ class TDTestCase:
         if ret != 0:
             tdLog.exit("varbinary_test ret != 0")
 
-        tdSql.execute(f" create database test")
-        tdSql.execute(f" use test ")
-        tdSql.execute(f" create stable stb (ts timestamp, c1 nchar(32), c2 varbinary(16), c3 float) tags (t1 int, t2 binary(8), t3 varbinary(8))")
-
-        tdSql.query(f"desc stb")
-        tdSql.checkRows(7)
-        tdSql.checkData(2, 1, 'VARBINARY')
-        tdSql.checkData(2, 2, 16)
-        tdSql.checkData(6, 1, 'VARBINARY')
-        tdSql.checkData(6, 2, 8)
+        # tdSql.execute(f" create database test")
+        # tdSql.execute(f" use test ")
+        # tdSql.execute(f" create stable stb (ts timestamp, c1 nchar(32), c2 varbinary(16), c3 float) tags (t1 int, t2 binary(8), t3 varbinary(8))")
+        #
+        # tdSql.query(f"desc stb")
+        # tdSql.checkRows(7)
+        # tdSql.checkData(2, 1, 'VARBINARY')
+        # tdSql.checkData(2, 2, 16)
+        # tdSql.checkData(6, 1, 'VARBINARY')
+        # tdSql.checkData(6, 2, 8)
 
         # tdSql.execute(f" insert into tb1 using stb tags (1, 'tb1_bin1', 'vart1') values (now, 'nchar1', 'varc1', 0.3)")
         # tdSql.execute(f" insert into tb1 values (now + 1s, 'nchar2', null, 0.4)")
diff --git a/tools/shell/src/shellEngine.c b/tools/shell/src/shellEngine.c
index 35ab86269d..72cf3cd1cc 100644
--- a/tools/shell/src/shellEngine.c
+++ b/tools/shell/src/shellEngine.c
@@ -409,7 +409,7 @@ void shellDumpFieldToFile(TdFilePtr pFile, const char *val, TAOS_FIELD *field, i
       if(taosAscii2Hex(val, length, &tmp, &size) < 0){
         break;
       }
-      taosFprintfFile(pFile, "%s", tmp);
+      taosFprintfFile(pFile, "%s%s%s", quotationStr, tmp, quotationStr);
       taosMemoryFree(tmp);
       break;
     }
diff --git a/utils/test/c/varbinary_test.c b/utils/test/c/varbinary_test.c
index b2fccee63b..e29b94ad1f 100644
--- a/utils/test/c/varbinary_test.c
+++ b/utils/test/c/varbinary_test.c
@@ -32,7 +32,7 @@
       break;\
     }\
   }
-int varbinary_test() {
+void varbinary_sql_test() {
   TAOS *taos = taos_connect("localhost", "root", "taosdata", NULL, 0);
 
   TAOS_RES *pRes = taos_query(taos, "drop database if exists varbinary_db");
@@ -68,6 +68,7 @@ int varbinary_test() {
     }
     rowIndex++;
   }
+  taos_free_result(pRes);
 
   pRes = taos_query(taos, "insert into tb1 using stb tags (1, 'tb1_bin1', 'vart1') values (now, 'nchar1', 'varc1', 0.3)");
   taos_free_result(pRes);
@@ -96,7 +97,6 @@ int varbinary_test() {
   ASSERT(taos_errno(pRes) != 0);
   taos_free_result(pRes);
 
-
   // test error
   pRes = taos_query(taos, "select * from tb1 where c2 >= 0x8de6");
   ASSERT(taos_errno(pRes) != 0);
@@ -146,13 +146,81 @@ int varbinary_test() {
   ASSERT(taos_errno(pRes) != 0);
   taos_free_result(pRes);
 
-//  pRes = taos_query(taos, "select * from stb where c2 contains 'ssd'");
-//  ASSERT(taos_errno(pRes) != 0);
-//  taos_free_result(pRes);
-//
-//  pRes = taos_query(taos, "select * from stb where c2 contains 'ssd'");
-//  ASSERT(taos_errno(pRes) != 0);
-//  taos_free_result(pRes);
+
+  // math function test, not support
+  pRes = taos_query(taos, "select abs(c2) from stb");
+  ASSERT(taos_errno(pRes) != 0);
+  taos_free_result(pRes);
+
+  pRes = taos_query(taos, "select floor(c2) from stb");
+  ASSERT(taos_errno(pRes) != 0);
+  taos_free_result(pRes);
+
+  // string function test, not support
+  pRes = taos_query(taos, "select length(c2) from stb");
+  ASSERT(taos_errno(pRes) != 0);
+  taos_free_result(pRes);
+
+  pRes = taos_query(taos, "select ltrim(c2) from stb");
+  ASSERT(taos_errno(pRes) != 0);
+  taos_free_result(pRes);
+
+  pRes = taos_query(taos, "select upper(c2) from stb");
+  ASSERT(taos_errno(pRes) != 0);
+  taos_free_result(pRes);
+
+
+  pRes = taos_query(taos, "select to_json(c2) from stb");
+  ASSERT(taos_errno(pRes) != 0);
+  taos_free_result(pRes);
+
+  pRes = taos_query(taos, "select TO_UNIXTIMESTAMP(c2) from stb");
+  ASSERT(taos_errno(pRes) != 0);
+  taos_free_result(pRes);
+
+  pRes = taos_query(taos, "select cast(c2 as varchar(16)) from stb");
+  ASSERT(taos_errno(pRes) != 0);
+  taos_free_result(pRes);
+
+  pRes = taos_query(taos, "select cast(c3 as varbinary(16)) from stb");
+  ASSERT(taos_errno(pRes) != 0);
+  taos_free_result(pRes);
+
+  pRes = taos_query(taos, "select cast(c1 as varbinary(16)) from stb");
+  ASSERT(taos_errno(pRes) != 0);
+  taos_free_result(pRes);
+
+  // support first/last/last_row/count/hyperloglog/sample/tail/mode
+  pRes = taos_query(taos, "select first(c2) from stb");
+  ASSERT(taos_errno(pRes) == 0);
+  taos_free_result(pRes);
+
+  pRes = taos_query(taos, "select count(c2) from stb");
+  ASSERT(taos_errno(pRes) == 0);
+  taos_free_result(pRes);
+
+  pRes = taos_query(taos, "select sample(c2,2) from stb");
+  ASSERT(taos_errno(pRes) == 0);
+  taos_free_result(pRes);
+
+  pRes = taos_query(taos, "select mode(c2) from stb");
+  ASSERT(taos_errno(pRes) == 0);
+  taos_free_result(pRes);
+
+  pRes = taos_query(taos, "select cast(t2 as varbinary(16)) from stb order by ts");
+  while ((row = taos_fetch_row(pRes)) != NULL) {
+    int32_t*    length = taos_fetch_lengths(pRes);
+    void*         data = NULL;
+    uint32_t      size = 0;
+    if(taosAscii2Hex(row[0], length[0], &data, &size) < 0){
+      ASSERT(0);
+    }
+
+    ASSERT(memcmp(data, "\\x7462315F62696E31", size) == 0);
+    taosMemoryFree(data);
+    break;
+  }
+  taos_free_result(pRes);
 
   int numRows = 0;
 
@@ -191,12 +259,25 @@ int varbinary_test() {
   ASSERT(numRows == 2);
   taos_free_result(pRes);
 
-
   pRes = taos_query(taos, "select * from stb where c2 not between '\\x3e' and '\\x7F8290'");
   GET_ROW_NUM
   ASSERT(numRows == 3);
   taos_free_result(pRes);
 
+  pRes = taos_query(taos, "select cast('1' as varbinary(8))");
+  while ((row = taos_fetch_row(pRes)) != NULL) {
+    int32_t*    length = taos_fetch_lengths(pRes);
+    void*         data = NULL;
+    uint32_t      size = 0;
+    if(taosAscii2Hex(row[0], length[0], &data, &size) < 0){
+      ASSERT(0);
+    }
+
+    ASSERT(memcmp(data, "\\x31", size) == 0);
+    taosMemoryFree(data);
+  }
+  taos_free_result(pRes);
+
   pRes = taos_query(taos, "select ts,c2 from stb order by c2");
   rowIndex = 0;
   while ((row = taos_fetch_row(pRes)) != NULL) {
@@ -237,17 +318,355 @@ int varbinary_test() {
 
     rowIndex++;
   }
-  printf("%s result1:%s\n", __FUNCTION__, taos_errstr(pRes));
+  printf("%s result %s\n", __FUNCTION__, taos_errstr(pRes));
   taos_free_result(pRes);
 
   taos_close(taos);
+}
 
-  return code;
+void varbinary_stmt_test(){
+  TAOS     *taos;
+  TAOS_RES *result;
+  int      code;
+  TAOS_STMT *stmt;
+
+  taos = taos_connect("localhost", "root", "taosdata", NULL, 0);
+  if (taos == NULL) {
+    printf("failed to connect to db, reason:%s\n", taos_errstr(taos));
+    ASSERT(0);
+  }
+
+  result = taos_query(taos, "drop database demo");
+  taos_free_result(result);
+
+  result = taos_query(taos, "create database demo");
+  code = taos_errno(result);
+  if (code != 0) {
+    printf("failed to create database, reason:%s\n", taos_errstr(result));
+    taos_free_result(result);
+    ASSERT(0);
+  }
+  taos_free_result(result);
+
+  result = taos_query(taos, "use demo");
+  taos_free_result(result);
+
+  // create table
+  const char* sql = "create table m1 (ts timestamp, b bool, varbin varbinary(16))";
+  result = taos_query(taos, sql);
+  code = taos_errno(result);
+  if (code != 0) {
+    printf("failed to create table, reason:%s\n", taos_errstr(result));
+    taos_free_result(result);
+    ASSERT(0);
+  }
+  taos_free_result(result);
+  struct {
+    int64_t ts;
+    int8_t b;
+    int8_t varbin[16];
+  } v = {0};
+
+  int32_t boolLen = sizeof(int8_t);
+  int32_t bintLen = sizeof(int64_t);
+  int32_t vbinLen = 5;
+
+  stmt = taos_stmt_init(taos);
+  TAOS_MULTI_BIND params[3];
+  params[0].buffer_type = TSDB_DATA_TYPE_TIMESTAMP;
+  params[0].buffer_length = sizeof(v.ts);
+  params[0].buffer = &v.ts;
+  params[0].length = &bintLen;
+  params[0].is_null = NULL;
+  params[0].num = 1;
+
+  params[1].buffer_type = TSDB_DATA_TYPE_BOOL;
+  params[1].buffer_length = sizeof(v.b);
+  params[1].buffer = &v.b;
+  params[1].length = &boolLen;
+  params[1].is_null = NULL;
+  params[1].num = 1;
+
+  params[2].buffer_type = TSDB_DATA_TYPE_VARBINARY;
+  params[2].buffer_length = sizeof(v.varbin);
+  params[2].buffer = v.varbin;
+  params[2].length = &vbinLen;
+  params[2].is_null = NULL;
+  params[2].num = 1;
+
+  char is_null = 1;
+
+  sql = "insert into m1 values(?,?,?)";
+  code = taos_stmt_prepare(stmt, sql, 0);
+  if (code != 0){
+    printf("failed to execute taos_stmt_prepare. code:0x%x\n", code);
+  }
+  v.ts = 1591060628000;
+  for (int i = 0; i < 10; ++i) {
+    v.ts += 1;
+    for (int j = 1; j < 3; ++j) {
+      params[j].is_null = ((i == j) ? &is_null : 0);
+    }
+    v.b = (int8_t)i % 2;
+
+    for (int j = 0; j < vbinLen; ++j) {
+      v.varbin[j] = i + j;
+    }
+
+    taos_stmt_bind_param(stmt, params);
+    taos_stmt_add_batch(stmt);
+  }
+  if (taos_stmt_execute(stmt) != 0) {
+    printf("failed to execute insert statement.\n");
+    ASSERT(0);
+  }
+  taos_stmt_close(stmt);
+
+  // query the records
+  stmt = taos_stmt_init(taos);
+  taos_stmt_prepare(stmt, "SELECT varbin FROM m1 WHERE varbin = ?", 0);
+  for (int j = 0; j < vbinLen; ++j) {
+    v.varbin[j] = j;
+  }
+  taos_stmt_bind_param(stmt, params + 2);
+  if (taos_stmt_execute(stmt) != 0) {
+    printf("failed to execute select statement.\n");
+    ASSERT(0);
+  }
+
+  result = taos_stmt_use_result(stmt);
+
+  TAOS_ROW    row;
+  int         rows = 0;
+  int         num_fields = taos_num_fields(result);
+  TAOS_FIELD *fields = taos_fetch_fields(result);
+
+  // fetch the records row by row
+  while ((row = taos_fetch_row(result))) {
+    char temp[256] = {0};
+    rows++;
+    taos_print_row(temp, row, fields, num_fields);
+    ASSERT(strcmp(temp, "\\x0001020304") == 0);
+  }
+  ASSERT (rows == 1);
+
+//  taos_free_result(result);
+  taos_stmt_close(stmt);
+
+  // query the records
+  stmt = taos_stmt_init(taos);
+  taos_stmt_prepare(stmt, "SELECT varbin FROM m1 WHERE varbin = ?", 0);
+
+  char tmp[16] = "\\x090a0b0c0d";
+  vbinLen = strlen(tmp);
+  params[2].buffer_type = TSDB_DATA_TYPE_VARCHAR;
+  params[2].buffer_length = sizeof(v.varbin);
+  params[2].buffer = tmp;
+  params[2].length = &vbinLen;
+  taos_stmt_bind_param(stmt, params + 2);
+  if (taos_stmt_execute(stmt) != 0) {
+    printf("failed to execute select statement.\n");
+    ASSERT(0);
+  }
+
+  result = taos_stmt_use_result(stmt);
+
+  rows = 0;
+  num_fields = taos_num_fields(result);
+  fields = taos_fetch_fields(result);
+
+  // fetch the records row by row
+  while ((row = taos_fetch_row(result))) {
+    char temp[256] = {0};
+    rows++;
+    taos_print_row(temp, row, fields, num_fields);
+    ASSERT(strcmp(temp, "\\x090A0B0C0D") == 0);
+  }
+  ASSERT (rows == 1);
+//  taos_free_result(result);
+  taos_stmt_close(stmt);
+  taos_close(taos);
+  printf("%s result success\n", __FUNCTION__);
+}
+
+tmq_t* build_consumer() {
+  tmq_conf_t* conf = tmq_conf_new();
+  tmq_conf_set(conf, "group.id", "tg2");
+  tmq_conf_set(conf, "client.id", "my app 1");
+  tmq_conf_set(conf, "td.connect.user", "root");
+  tmq_conf_set(conf, "td.connect.pass", "taosdata");
+  tmq_conf_set(conf, "msg.with.table.name", "true");
+  tmq_conf_set(conf, "enable.auto.commit", "true");
+
+  tmq_t* tmq = tmq_consumer_new(conf, NULL, 0);
+  assert(tmq);
+  tmq_conf_destroy(conf);
+  return tmq;
+}
+
+void varbinary_tmq_test(){
+
+  // build database
+
+  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+  ASSERT(pConn != NULL);
+
+  TAOS_RES *pRes = taos_query(pConn, "drop database if exists abc");
+  if (taos_errno(pRes) != 0) {
+    printf("error in drop db, reason:%s\n", taos_errstr(pRes));
+    ASSERT(0);
+  }
+  taos_free_result(pRes);
+
+  pRes = taos_query(pConn, "create database if not exists abc vgroups 1 wal_retention_period 3600");
+  if (taos_errno(pRes) != 0) {
+    printf("error in create db, reason:%s\n", taos_errstr(pRes));
+    ASSERT(0);
+  }
+  taos_free_result(pRes);
+
+  pRes = taos_query(pConn, "use abc");
+  if (taos_errno(pRes) != 0) {
+    printf("error in use db, reason:%s\n", taos_errstr(pRes));
+    ASSERT(0);
+  }
+  taos_free_result(pRes);
+
+  pRes = taos_query(pConn, "create stable if not exists st1 (ts timestamp, c2 varbinary(16)) tags(t1 int, t2 varbinary(8))");
+  if (taos_errno(pRes) != 0) {
+    printf("failed to create super table st1, reason:%s\n", taos_errstr(pRes));
+    ASSERT(0);
+  }
+  taos_free_result(pRes);
+
+  pRes = taos_query(pConn, "create table if not exists ct0 using st1 tags(1000, '\\x3f89')");
+  if (taos_errno(pRes) != 0) {
+    printf("failed to create child table tu1, reason:%s\n", taos_errstr(pRes));
+    ASSERT(0);
+  }
+  taos_free_result(pRes);
+
+  pRes = taos_query(pConn, "insert into ct0 values(1626006833400, 'hello')");
+  if (taos_errno(pRes) != 0) {
+    printf("failed to insert into ct0, reason:%s\n", taos_errstr(pRes));
+    ASSERT(0);
+  }
+  taos_free_result(pRes);
+
+  pRes = taos_query(pConn, "alter table st1 modify column c2 varbinary(64)");
+  if (taos_errno(pRes) != 0) {
+    printf("failed to alter super table st1, reason:%s\n", taos_errstr(pRes));
+    ASSERT(0);
+  }
+  taos_free_result(pRes);
+
+  pRes = taos_query(pConn, "alter table st1 add tag t3 varbinary(64)");
+  if (taos_errno(pRes) != 0) {
+    printf("failed to alter super table st1, reason:%s\n", taos_errstr(pRes));
+    ASSERT(0);
+  }
+  taos_free_result(pRes);
+
+  pRes = taos_query(pConn, "alter table ct0 set tag t2='894'");
+  if (taos_errno(pRes) != 0) {
+    printf("failed to slter child table ct3, reason:%s\n", taos_errstr(pRes));
+    ASSERT(0);
+  }
+  taos_free_result(pRes);
+
+  pRes = taos_query(pConn, "create table tb1 (ts timestamp, c1 varbinary(8))");
+  if (taos_errno(pRes) != 0) {
+    printf("failed to create super table st1, reason:%s\n", taos_errstr(pRes));
+    ASSERT(0);
+  }
+  taos_free_result(pRes);
+
+  pRes = taos_query(pConn, "alter table tb1 add column c2 varbinary(8)");
+  if (taos_errno(pRes) != 0) {
+    printf("failed to create super table st1, reason:%s\n", taos_errstr(pRes));
+    ASSERT(0);
+  }
+  taos_free_result(pRes);
+
+  // create topic
+  pRes = taos_query(pConn, "create topic topic_db with meta as database abc");
+  if (taos_errno(pRes) != 0) {
+    printf("failed to create topic topic_db, reason:%s\n", taos_errstr(pRes));
+    ASSERT(0);
+  }
+  taos_free_result(pRes);
+
+  // build consumer
+  tmq_t*      tmq = build_consumer();
+  tmq_list_t* topic_list = tmq_list_new();
+  tmq_list_append(topic_list, "topic_db");
+
+  int32_t code = tmq_subscribe(tmq, topic_list);
+  ASSERT(code == 0);
+
+  int32_t cnt = 0;
+  while (1) {
+    TAOS_RES* tmqmessage = tmq_consumer_poll(tmq, 1000);
+    if (tmqmessage) {
+      if (tmq_get_res_type(tmqmessage) == TMQ_RES_TABLE_META || tmq_get_res_type(tmqmessage) == TMQ_RES_METADATA) {
+        char* result = tmq_get_json_meta(tmqmessage);
+//        if (result) {
+//          printf("meta result: %s\n", result);
+//        }
+        switch (cnt) {
+          case 0:
+            ASSERT(strcmp(result, "{\"type\":\"create\",\"tableType\":\"super\",\"tableName\":\"st1\",\"columns\":[{\"name\":\"ts\",\"type\":9},{\"name\":\"c2\",\"type\":16,\"length\":16}],\"tags\":[{\"name\":\"t1\",\"type\":4},{\"name\":\"t2\",\"type\":16,\"length\":8}]}") == 0);
+            break;
+          case 1:
+            ASSERT(strcmp(result, "{\"type\":\"create\",\"tableType\":\"child\",\"tableName\":\"ct0\",\"using\":\"st1\",\"tagNum\":2,\"tags\":[{\"name\":\"t1\",\"type\":4,\"value\":1000},{\"name\":\"t2\",\"type\":16,\"value\":\"\\\"\\\\x3F89\\\"\"}],\"createList\":[]}") == 0);
+            break;
+          case 2:
+            ASSERT(strcmp(result, "{\"type\":\"alter\",\"tableType\":\"super\",\"tableName\":\"st1\",\"alterType\":7,\"colName\":\"c2\",\"colType\":16,\"colLength\":64}") == 0);
+            break;
+          case 3:
+            ASSERT(strcmp(result, "{\"type\":\"alter\",\"tableType\":\"super\",\"tableName\":\"st1\",\"alterType\":1,\"colName\":\"t3\",\"colType\":16,\"colLength\":64}") == 0);
+            break;
+          case 4:
+            ASSERT(strcmp(result, "{\"type\":\"alter\",\"tableType\":\"child\",\"tableName\":\"ct0\",\"alterType\":4,\"colName\":\"t2\",\"colValue\":\"\\\"\\\\x383934\\\"\",\"colValueNull\":false}") == 0);
+            break;
+          case 5:
+            ASSERT(strcmp(result, "{\"type\":\"create\",\"tableType\":\"normal\",\"tableName\":\"tb1\",\"columns\":[{\"name\":\"ts\",\"type\":9},{\"name\":\"c1\",\"type\":16,\"length\":8}],\"tags\":[]}") == 0);
+            break;
+          case 6:
+            ASSERT(strcmp(result, "{\"type\":\"alter\",\"tableType\":\"normal\",\"tableName\":\"tb1\",\"alterType\":5,\"colName\":\"c2\",\"colType\":16,\"colLength\":8}") == 0);
+            break;
+          default:
+            break;
+        }
+        cnt++;
+        tmq_free_json_meta(result);
+      }
+      taos_free_result(tmqmessage);
+    } else {
+      break;
+    }
+  }
+
+  code = tmq_consumer_close(tmq);
+  ASSERT(code == 0);
+
+  tmq_list_destroy(topic_list);
+
+  pRes = taos_query(pConn, "drop topic if exists topic_db");
+  if (taos_errno(pRes) != 0) {
+    printf("error in drop topic, reason:%s\n", taos_errstr(pRes));
+    ASSERT(0);
+  }
+  taos_free_result(pRes);
+  taos_close(pConn);
+  printf("%s result success\n", __FUNCTION__);
 }
 
 int main(int argc, char *argv[]) {
   int ret = 0;
-  ret = varbinary_test();
-  ASSERT(!ret);
+
+  varbinary_tmq_test();
+  varbinary_stmt_test();
+  varbinary_sql_test();
   return ret;
 }