mirror of
https://github.com/apache/superset.git
synced 2026-04-10 11:55:24 +00:00
ec86d9de17
* Enable lint checking for files in db_engine_spec that have few to no lint issues * Enable lint and fix issue in db_engine_spec/mysql.py * Enable pylint and fix lint for db_engine_spec/pinot.py * Enable lint and fix issues for db_engine_specs/hive.py * Enable lint and fix for db_engine_spec/presto.py * Re-enable lint on base.py, fix/disable specific failures, including one bad method signature * Make flake8 happy after a number of pylint fixes * Update db_engine_spec_test test cases related to Presto to support different method naming * automated reformatting * One more pylint disable for druid.py * Find the magic invocation that makes all the lint tools happy
60 lines
2.0 KiB
Python
60 lines
2.0 KiB
Python
# 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 List
|
|
|
|
from sqlalchemy.engine.reflection import Inspector
|
|
|
|
from superset.db_engine_specs.base import BaseEngineSpec
|
|
|
|
|
|
class ImpalaEngineSpec(BaseEngineSpec):
|
|
"""Engine spec for Cloudera's Impala"""
|
|
|
|
engine = "impala"
|
|
|
|
_time_grain_functions = {
|
|
None: "{col}",
|
|
"PT1M": "TRUNC({col}, 'MI')",
|
|
"PT1H": "TRUNC({col}, 'HH')",
|
|
"P1D": "TRUNC({col}, 'DD')",
|
|
"P1W": "TRUNC({col}, 'WW')",
|
|
"P1M": "TRUNC({col}, 'MONTH')",
|
|
"P0.25Y": "TRUNC({col}, 'Q')",
|
|
"P1Y": "TRUNC({col}, 'YYYY')",
|
|
}
|
|
|
|
@classmethod
|
|
def epoch_to_dttm(cls) -> str:
|
|
return "from_unixtime({col})"
|
|
|
|
@classmethod
|
|
def convert_dttm(cls, target_type: str, dttm: datetime) -> str:
|
|
tt = target_type.upper()
|
|
if tt == "DATE":
|
|
return "'{}'".format(dttm.strftime("%Y-%m-%d"))
|
|
return "'{}'".format(dttm.strftime("%Y-%m-%d %H:%M:%S"))
|
|
|
|
@classmethod
|
|
def get_schema_names(cls, inspector: Inspector) -> List[str]:
|
|
schemas = [
|
|
row[0]
|
|
for row in inspector.engine.execute("SHOW SCHEMAS")
|
|
if not row[0].startswith("_")
|
|
]
|
|
return schemas
|