Update parser.py

Solved the nested query parser.columns_dict set result. Excluded 'join' and 'where' columns from 'select' dict of parser.columns_dict

Author: neel98

sql_metadata/parser.py

@@ -834,7 +834,8 @@ def _resolve_nested_query(
             return [resolved_column]
 
         if column_name == "*":
-            return subparser.columns
+            # return subparser.columns
+            return list(set(item for sublist in subparser.columns_dict['select'] for item in (sublist if isinstance(sublist, list) else [sublist])))
         try:
             column_index = [x.split(".")[-1] for x in subparser.columns].index(
                 column_name