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a6f258747b
* Athena.py: cretaed variable for too long line, removed disabled pylint rule. * Enabled `line-too-long` in `drill.py`. Added variable for too long string. * Reformatted hana.py: - changed return statement into two lines to keep line lenght limit * Enabling pylint rule in hive.py: - `no-name-in-module` for pyhive in several places - `line-too-long` and adding new lines - `unused-import` is not invalid anymore * Enabled `line-too-long` in `kylin.py`. Added variable for too long string. * Enabled `unused_import` in `base.py` from db_engine_specs module. * Enabled `unused_import` in `bigquery.py` from db_engine_specs module. * Enabled `unused_import` in `druid.py` from db_engine_specs module. * fix: athena datetime string converting
70 lines
2.6 KiB
Python
70 lines
2.6 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 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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_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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"PT0.5H": "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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"P0.25Y": "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(cls, target_type: str, dttm: datetime) -> 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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