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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
78 lines
2.9 KiB
Python
78 lines
2.9 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, List, Optional, Tuple
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from superset.db_engine_specs.base import BaseEngineSpec, LimitMethod
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from superset.utils import core as utils
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class OracleEngineSpec(BaseEngineSpec):
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engine = "oracle"
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engine_name = "Oracle"
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limit_method = LimitMethod.WRAP_SQL
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force_column_alias_quotes = True
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max_column_name_length = 30
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_time_grain_expressions = {
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None: "{col}",
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"PT1S": "CAST({col} as DATE)",
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"PT1M": "TRUNC(CAST({col} as DATE), 'MI')",
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"PT1H": "TRUNC(CAST({col} as DATE), 'HH')",
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"P1D": "TRUNC(CAST({col} as DATE), 'DDD')",
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"P1W": "TRUNC(CAST({col} as DATE), 'WW')",
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"P1M": "TRUNC(CAST({col} as DATE), 'MONTH')",
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"P3M": "TRUNC(CAST({col} as DATE), 'Q')",
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"P1Y": "TRUNC(CAST({col} as DATE), 'YEAR')",
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}
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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.DATETIME:
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datetime_formatted = dttm.isoformat(timespec="seconds")
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return f"""TO_DATE('{datetime_formatted}', 'YYYY-MM-DD"T"HH24:MI:SS')"""
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if tt == utils.TemporalType.TIMESTAMP:
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return f"""TO_TIMESTAMP('{dttm
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.isoformat(timespec="microseconds")}', 'YYYY-MM-DD"T"HH24:MI:SS.ff6')"""
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return None
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@classmethod
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def epoch_to_dttm(cls) -> str:
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return "TO_DATE('1970-01-01','YYYY-MM-DD')+(1/24/60/60)*{col}"
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@classmethod
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def epoch_ms_to_dttm(cls) -> str:
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return "TO_DATE('1970-01-01','YYYY-MM-DD')+(1/24/60/60/1000)*{col}"
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@classmethod
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def fetch_data(
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cls, cursor: Any, limit: Optional[int] = None
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) -> List[Tuple[Any, ...]]:
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"""
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:param cursor: Cursor instance
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:param limit: Maximum number of rows to be returned by the cursor
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:return: Result of query
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"""
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if not cursor.description:
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return []
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return super().fetch_data(cursor, limit)
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