support identifier in USING

Author: ea-rus

mindsdb_sql_parser/ast/select/select.py

@@ -158,6 +158,8 @@ def get_string(self, *args, **kwargs):
                     ]
                     args_str = ', '.join(args)
                     value = f'{value.type}({args_str})'
+                if isinstance(value, Identifier):
+                    value = value.to_string()
                 else:
                     value = json.dumps(value)
 

tests/test_mindsdb/test_selects.py

@@ -68,7 +68,7 @@ def test_select_using(self):
         sql = """
            SELECT status FROM tbl1
            group by 1
-           using p1=1, p2='2'
+           using p1=1, p2='2', p3=column
         """
         ast = parse_sql(sql)
         expected_ast = Select(
@@ -77,7 +77,8 @@ def test_select_using(self):
             group_by=[Constant(1)],
             using={
                 'p1': 1,
-                'p2': '2'
+                'p2': '2',
+                'p3': Identifier('column')
             }
         )