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5a1c68177e
* fix(elasticsearch): cast does not take effect for time zone settings * test(elasticsearch): add test * fix(test): fix typo * docs(elasticsearch): add annotation * docs(elasticsearch): add time_zone desc * docs(elasticsearch): fix typo * refactor(db_engine): change convert_dttm signature * fix(test): fix test * fix(es): add try catch * fix(test): fix caplog * fix(test): fix typo
91 lines
3.4 KiB
Python
91 lines
3.4 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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from datetime import datetime
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from typing import Any, Dict, Optional
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from urllib import parse
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from sqlalchemy.engine.url import URL
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from superset.db_engine_specs.base import BaseEngineSpec
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from superset.utils import core as utils
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class DrillEngineSpec(BaseEngineSpec):
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"""Engine spec for Apache Drill"""
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engine = "drill"
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engine_name = "Apache Drill"
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default_driver = "sadrill"
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_time_grain_expressions = {
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None: "{col}",
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"PT1S": "NEARESTDATE({col}, 'SECOND')",
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"PT1M": "NEARESTDATE({col}, 'MINUTE')",
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"PT15M": "NEARESTDATE({col}, 'QUARTER_HOUR')",
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"PT30M": "NEARESTDATE({col}, 'HALF_HOUR')",
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"PT1H": "NEARESTDATE({col}, 'HOUR')",
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"P1D": "NEARESTDATE({col}, 'DAY')",
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"P1W": "NEARESTDATE({col}, 'WEEK_SUNDAY')",
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"P1M": "NEARESTDATE({col}, 'MONTH')",
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"P3M": "NEARESTDATE({col}, 'QUARTER')",
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"P1Y": "NEARESTDATE({col}, 'YEAR')",
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}
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# Returns a function to convert a Unix timestamp in milliseconds to a date
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@classmethod
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def epoch_to_dttm(cls) -> str:
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return cls.epoch_ms_to_dttm().replace("{col}", "({col}*1000)")
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@classmethod
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def epoch_ms_to_dttm(cls) -> str:
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return "TO_DATE({col})"
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@classmethod
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def convert_dttm(
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cls, target_type: str, dttm: datetime, db_extra: Optional[Dict[str, Any]] = None
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) -> Optional[str]:
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tt = target_type.upper()
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if tt == utils.TemporalType.DATE:
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return f"TO_DATE('{dttm.date().isoformat()}', 'yyyy-MM-dd')"
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if tt == utils.TemporalType.TIMESTAMP:
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datetime_formatted = dttm.isoformat(sep=" ", timespec="seconds")
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return f"""TO_TIMESTAMP('{datetime_formatted}', 'yyyy-MM-dd HH:mm:ss')"""
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return None
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@classmethod
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def adjust_database_uri(cls, uri: URL, selected_schema: Optional[str]) -> None:
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if selected_schema:
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uri.database = parse.quote(selected_schema, safe="")
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@classmethod
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def modify_url_for_impersonation(
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cls, url: URL, impersonate_user: bool, username: Optional[str]
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) -> None:
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"""
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Modify the SQL Alchemy URL object with the user to impersonate if applicable.
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:param url: SQLAlchemy URL object
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:param impersonate_user: Flag indicating if impersonation is enabled
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:param username: Effective username
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"""
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if impersonate_user and username is not None:
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if url.drivername == "drill+odbc":
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url.query["DelegationUID"] = username
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elif url.drivername == "drill+jdbc":
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url.query["impersonation_target"] = username
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else:
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url.username = username
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