diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index 71863cbe1561919070cd766423eae3f99081b7e0..f1acea71c55dffe58315fea7daf1c4ebed6443ed 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -996,33 +996,6 @@ static bool validateTagParams(SArray* pTagsList, SArray* pFieldList, SSqlCmd* pC
     return false;
   }
 
-  int32_t nLen = 0;
-  for (int32_t i = 0; i < numOfTags; ++i) {
-    TAOS_FIELD* p = taosArrayGet(pTagsList, i);
-    if (p->bytes == 0) {
-      invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg7);
-      return false;
-    }
-
-    nLen += p->bytes;
-  }
-
-  // max tag row length must be less than TSDB_MAX_TAGS_LEN
-  if (nLen > TSDB_MAX_TAGS_LEN) {
-    invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg2);
-    return false;
-  }
-
-  // field name must be unique
-  for (int32_t i = 0; i < numOfTags; ++i) {
-    TAOS_FIELD* p = taosArrayGet(pTagsList, i);
-
-    if (has(pFieldList, 0, p->name) == true) {
-      invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg3);
-      return false;
-    }
-  }
-
   /* timestamp in tag is not allowed */
   for (int32_t i = 0; i < numOfTags; ++i) {
     TAOS_FIELD* p = taosArrayGet(pTagsList, i);
@@ -1054,6 +1027,33 @@ static bool validateTagParams(SArray* pTagsList, SArray* pFieldList, SSqlCmd* pC
     }
   }
 
+  int32_t nLen = 0;
+  for (int32_t i = 0; i < numOfTags; ++i) {
+    TAOS_FIELD* p = taosArrayGet(pTagsList, i);
+    if (p->bytes == 0) {
+      invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg7);
+      return false;
+    }
+
+    nLen += p->bytes;
+  }
+
+  // max tag row length must be less than TSDB_MAX_TAGS_LEN
+  if (nLen > TSDB_MAX_TAGS_LEN) {
+    invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg2);
+    return false;
+  }
+
+  // field name must be unique
+  for (int32_t i = 0; i < numOfTags; ++i) {
+    TAOS_FIELD* p = taosArrayGet(pTagsList, i);
+
+    if (has(pFieldList, 0, p->name) == true) {
+      invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg3);
+      return false;
+    }
+  }
+
   return true;
 }
 
diff --git a/src/query/src/qParserImpl.c b/src/query/src/qParserImpl.c
index 5e5bc63675aa589093e38d4e7b733f263ae66efa..5afad74db23072bf71e41625be9ccda6b151ef7e 100644
--- a/src/query/src/qParserImpl.c
+++ b/src/query/src/qParserImpl.c
@@ -384,7 +384,12 @@ void tSqlSetColumnInfo(TAOS_FIELD *pField, SStrToken *pName, TAOS_FIELD *pType)
   pField->name[pName->n] = 0;
 
   pField->type = pType->type;
-  pField->bytes = pType->bytes;
+  if(pField->type < TSDB_DATA_TYPE_BOOL || pField->type > TSDB_DATA_TYPE_NCHAR){
+    pField->bytes = 0;
+  } else {
+    pField->bytes = pType->bytes;
+  }
+
 }
 
 void tSqlSetColumnType(TAOS_FIELD *pField, SStrToken *type) {