| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, |
| # software distributed under the License is distributed on an |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| from typing import Any, Dict, List, Optional, Type |
| |
| from sqlalchemy.sql.sqltypes import Integer |
| from sqlalchemy.sql.type_api import TypeEngine |
| from sqlalchemy.sql.visitors import Visitable |
| |
| # _compiler_dispatch is defined to help with type compilation |
| |
| |
| class TinyInteger(Integer): |
| """ |
| A type for tiny ``int`` integers. |
| """ |
| |
| @property |
| def python_type(self) -> Type[int]: |
| return int |
| |
| @classmethod |
| def _compiler_dispatch(cls, _visitor: Visitable, **_kw: Any) -> str: |
| return "TINYINT" |
| |
| |
| class Interval(TypeEngine): |
| """ |
| A type for intervals. |
| """ |
| |
| @property |
| def python_type(self) -> Optional[Type[Any]]: |
| return None |
| |
| @classmethod |
| def _compiler_dispatch(cls, _visitor: Visitable, **_kw: Any) -> str: |
| return "INTERVAL" |
| |
| |
| class Array(TypeEngine): |
| """ |
| A type for arrays. |
| """ |
| |
| @property |
| def python_type(self) -> Optional[Type[List[Any]]]: |
| return list |
| |
| @classmethod |
| def _compiler_dispatch(cls, _visitor: Visitable, **_kw: Any) -> str: |
| return "ARRAY" |
| |
| |
| class Map(TypeEngine): |
| """ |
| A type for maps. |
| """ |
| |
| @property |
| def python_type(self) -> Optional[Type[Dict[Any, Any]]]: |
| return dict |
| |
| @classmethod |
| def _compiler_dispatch(cls, _visitor: Visitable, **_kw: Any) -> str: |
| return "MAP" |
| |
| |
| class Row(TypeEngine): |
| """ |
| A type for rows. |
| """ |
| |
| @property |
| def python_type(self) -> Optional[Type[Any]]: |
| return None |
| |
| @classmethod |
| def _compiler_dispatch(cls, _visitor: Visitable, **_kw: Any) -> str: |
| return "ROW" |