diff --git a/src/client/src/tscParseInsert.c b/src/client/src/tscParseInsert.c
index 3b4a06fe4c3c7a9d2405c2253df84087ffe7045e..d2e1dd2e991ea9b9d75b16c4912988a807f454e8 100644
--- a/src/client/src/tscParseInsert.c
+++ b/src/client/src/tscParseInsert.c
@@ -1084,11 +1084,11 @@ static int32_t tscCheckIfCreateTable(char **sqlstr, SSqlObj *pSql, char** boundC
     if(spd.numOfBound == 1 && pTagSchema[spd.boundedColumns[0]].type == TSDB_DATA_TYPE_JSON){
       char tmp = sToken.z[sToken.n];
       sToken.z[sToken.n] = 0;
-      if(sToken.type != TK_STRING) {
-        tdDestroyKVRowBuilder(&kvRowBuilder);
-        tscDestroyBoundColumnInfo(&spd);
-        return tscSQLSyntaxErrMsg(pInsertParam->msg, "json type error, should be string", NULL);
-      }
+//      if(sToken.type != TK_STRING) {
+//        tdDestroyKVRowBuilder(&kvRowBuilder);
+//        tscDestroyBoundColumnInfo(&spd);
+//        return tscSQLSyntaxErrMsg(pInsertParam->msg, "json type error, should be string", NULL);
+//      }
       code = parseJsontoTagData(sToken.z, &kvRowBuilder, pInsertParam->msg, pTagSchema[spd.boundedColumns[0]].colId);
       if (code != TSDB_CODE_SUCCESS) {
         tdDestroyKVRowBuilder(&kvRowBuilder);
diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index db626b05e8e7bdd4c0ce70dde7b268d7a1b366b9..22e31f87020c1635d68b21b8234d5f28b12ff82d 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -6072,6 +6072,15 @@ int32_t setAlterTableInfo(SSqlObj* pSql, struct SSqlInfo* pInfo) {
         tdDestroyKVRowBuilder(&kvRowBuilder);
         return invalidOperationMsg(pMsg, msg25);
       }
+
+      char tagVal[TSDB_MAX_TAGS_LEN] = {0};
+      int ret = tVariantDump(&(pItem->pVar), tagVal, pTagsSchema->type, true);
+      if (ret != TSDB_CODE_SUCCESS) {
+        tdDestroyKVRowBuilder(&kvRowBuilder);
+        return invalidOperationMsg(pMsg, msg25);
+      }
+      tdAddColToKVRow(&kvRowBuilder, pTagsSchema->colId, pTagsSchema->type, tagVal, false);
+
       code = parseJsontoTagData(pItem->pVar.pz, &kvRowBuilder, pMsg, pTagsSchema->colId);
       if (code != TSDB_CODE_SUCCESS) {
         tdDestroyKVRowBuilder(&kvRowBuilder);