| # 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 datetime import datetime |
| from typing import Any, Optional, TYPE_CHECKING |
| |
| from sqlalchemy import types |
| |
| from superset.constants import TimeGrain |
| from superset.db_engine_specs.base import BaseEngineSpec |
| |
| if TYPE_CHECKING: |
| from superset.connectors.sqla.models import TableColumn |
| |
| |
| class RocksetEngineSpec(BaseEngineSpec): |
| engine = "rockset" |
| engine_name = "Rockset" |
| |
| _time_grain_expressions = { |
| None: "{col}", |
| TimeGrain.SECOND: "DATE_TRUNC('second', {col})", |
| TimeGrain.MINUTE: "DATE_TRUNC('minute', {col})", |
| TimeGrain.HOUR: "DATE_TRUNC('hour', {col})", |
| TimeGrain.DAY: "DATE_TRUNC('day', {col})", |
| TimeGrain.WEEK: "DATE_TRUNC('week', {col})", |
| TimeGrain.MONTH: "DATE_TRUNC('month', {col})", |
| TimeGrain.QUARTER: "DATE_TRUNC('quarter', {col})", |
| TimeGrain.YEAR: "DATE_TRUNC('year', {col})", |
| } |
| |
| @classmethod |
| def epoch_to_dttm(cls) -> str: |
| return "{col} * 1000" |
| |
| @classmethod |
| def epoch_ms_to_dttm(cls) -> str: |
| return "{col}" |
| |
| @classmethod |
| def convert_dttm( |
| cls, target_type: str, dttm: datetime, db_extra: Optional[dict[str, Any]] = None |
| ) -> Optional[str]: |
| sqla_type = cls.get_sqla_column_type(target_type) |
| |
| if isinstance(sqla_type, types.Date): |
| return f"DATE '{dttm.date().isoformat()}'" |
| if isinstance(sqla_type, types.TIMESTAMP): |
| dttm_formatted = dttm.isoformat(timespec="microseconds") |
| return f"""TIMESTAMP '{dttm_formatted}'""" |
| if isinstance(sqla_type, types.DateTime): |
| dttm_formatted = dttm.isoformat(sep=" ", timespec="microseconds") |
| return f"""DATETIME '{dttm_formatted}'""" |
| return None |
| |
| @classmethod |
| def alter_new_orm_column(cls, orm_col: "TableColumn") -> None: |
| if orm_col.type == "TIMESTAMP": |
| orm_col.python_date_format = "epoch_ms" |