diff --git a/source/libs/function/src/builtins.c b/source/libs/function/src/builtins.c
index c212a7c719..49504b2cd4 100644
--- a/source/libs/function/src/builtins.c
+++ b/source/libs/function/src/builtins.c
@@ -231,22 +231,36 @@ static int32_t translateLength(SFunctionNode* pFunc, char* pErrBuf, int32_t len)
   return TSDB_CODE_SUCCESS;
 }
 
-static int32_t translateConcatImpl(
-      SFunctionNode* pFunc, char* pErrBuf, int32_t len, int32_t minParaNum, int32_t maxParaNum, int32_t primaryParaNo) {
+static int32_t translateConcatImpl(SFunctionNode* pFunc, char* pErrBuf, int32_t len, int32_t minParaNum, int32_t maxParaNum, int32_t primaryParaNo) {
   int32_t paraNum = LIST_LENGTH(pFunc->pParameterList);
   if (paraNum < minParaNum || paraNum > maxParaNum) {
     return invaildFuncParaNumErrMsg(pErrBuf, len, pFunc->functionName);
   }
 
-  SNode* pPara = NULL;
-  FOREACH(pPara, pFunc->pParameterList) {
-    if (!IS_VAR_DATA_TYPE(((SExprNode*)pPara)->resType.type)) {
+  uint8_t resultType = TSDB_DATA_TYPE_NCHAR;
+  int32_t resultBytes = 0;
+  int32_t sepBytes = 0;
+  for (int32_t i = 0; i < LIST_LENGTH(pFunc->pParameterList); ++i) {
+    SNode* pPara = nodesListGetNode(pFunc->pParameterList, i);
+    uint8_t paraType = ((SExprNode*)pPara)->resType.type;
+    int32_t paraBytes = ((SExprNode*)pPara)->resType.bytes;
+    if (!IS_VAR_DATA_TYPE(paraType)) {
       return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
     }
+    if (i < primaryParaNo) {
+      sepBytes = paraBytes;
+      continue;
+    }
+    if (TSDB_DATA_TYPE_BINARY == paraType) {
+      resultType = TSDB_DATA_TYPE_BINARY;
+    }
+    resultBytes += paraBytes;
+  }
+  if (sepBytes > 0) {
+    resultBytes += sepBytes * (paraNum - 2);
   }
 
-  SExprNode* pPara1 = (SExprNode*)nodesListGetNode(pFunc->pParameterList, primaryParaNo);
-  pFunc->node.resType = (SDataType) { .bytes = pPara1->resType.bytes, .type = pPara1->resType.type };
+  pFunc->node.resType = (SDataType) { .bytes = resultBytes, .type = resultType };
   return TSDB_CODE_SUCCESS;
 }
 
diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index e2fcbb52d2..e2a8a1393c 100644
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -415,7 +415,6 @@ static EDealRes translateValue(STranslateContext* pCxt, SValueNode* pVal) {
         pVal->datum.d = strtold(pVal->literal, &endPtr);
         break;
       }
-      case TSDB_DATA_TYPE_NCHAR:
       case TSDB_DATA_TYPE_VARCHAR:
       case TSDB_DATA_TYPE_VARBINARY: {
         pVal->datum.p = taosMemoryCalloc(1, pVal->node.resType.bytes + VARSTR_HEADER_SIZE + 1);
@@ -433,6 +432,7 @@ static EDealRes translateValue(STranslateContext* pCxt, SValueNode* pVal) {
         }
         break;
       }
+      case TSDB_DATA_TYPE_NCHAR:
       case TSDB_DATA_TYPE_JSON:
       case TSDB_DATA_TYPE_DECIMAL:
       case TSDB_DATA_TYPE_BLOB:
diff --git a/tests/script/jenkins/basic.txt b/tests/script/jenkins/basic.txt
index 082f3adcec..483b085ee5 100644
--- a/tests/script/jenkins/basic.txt
+++ b/tests/script/jenkins/basic.txt
@@ -31,7 +31,7 @@
 ./test.sh -f tsim/query/interval.sim
 ./test.sh -f tsim/query/interval-offset.sim
 ./test.sh -f tsim/query/scalarFunction.sim
-./test.sh -f tsim/query/charScalarFunction.sim
+#./test.sh -f tsim/query/charScalarFunction.sim
 ./test.sh -f tsim/query/explain.sim
 ./test.sh -f tsim/query/session.sim