diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index da903b4ffd37f47b1943a7b3685aaabaccecef5f..c89ab921464711cd41d8b29b7be63aea2f414613 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -3568,7 +3568,7 @@ static bool functionCompatibleCheck(SQueryInfo* pQueryInfo, bool joinQuery, bool
       return false;
     }
 
-    if (functionId == TSDB_FUNC_COUNT && pExpr1->base.colInfo.colId == TSDB_TBNAME_COLUMN_INDEX) {
+    if (functionId == TSDB_FUNC_COUNT && (pExpr1->base.colInfo.colId == TSDB_TBNAME_COLUMN_INDEX || TSDB_COL_IS_TAG(pExpr1->base.colInfo.flag))) {
       ++countTbname;
     }
   }