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81 lines
3.0 KiB
Python
81 lines
3.0 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 __future__ import annotations
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from superset.constants import TimeGrain
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from superset.db_engine_specs.base import BaseEngineSpec, DatabaseCategory
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class ArcEngineSpec(BaseEngineSpec):
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"""Engine spec for Arc data platform."""
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engine = "arc"
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engine_name = "Arc"
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default_driver = "arrow"
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_time_grain_expressions = {
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None: "{col}",
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TimeGrain.SECOND: "DATE_TRUNC('second', {col})",
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TimeGrain.MINUTE: "DATE_TRUNC('minute', {col})",
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TimeGrain.HOUR: "DATE_TRUNC('hour', {col})",
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TimeGrain.DAY: "DATE_TRUNC('day', {col})",
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TimeGrain.WEEK: "DATE_TRUNC('week', {col})",
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TimeGrain.MONTH: "DATE_TRUNC('month', {col})",
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TimeGrain.QUARTER: "DATE_TRUNC('quarter', {col})",
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TimeGrain.YEAR: "DATE_TRUNC('year', {col})",
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}
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metadata = {
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"description": "Arc is a data platform with multiple connection options.",
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"categories": [DatabaseCategory.OTHER, DatabaseCategory.PROPRIETARY],
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"pypi_packages": ["arc-superset-arrow"],
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"connection_string": ("arc+arrow://{api_key}@{hostname}:{port}/{database}"),
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"parameters": {
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"api_key": "Arc API key",
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"hostname": "Arc hostname",
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"port": "Arc port",
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"database": "Database name",
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},
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"drivers": [
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{
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"name": "Apache Arrow (Recommended)",
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"pypi_package": "arc-superset-arrow",
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"connection_string": (
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"arc+arrow://{api_key}@{hostname}:{port}/{database}"
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),
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"is_recommended": True,
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"notes": (
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"Recommended for production. "
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"Provides 3-5x better performance using Apache Arrow IPC."
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),
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},
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{
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"name": "JSON",
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"pypi_package": "arc-superset-dialect",
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"connection_string": (
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"arc+json://{api_key}@{hostname}:{port}/{database}"
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),
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"is_recommended": False,
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},
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],
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"notes": (
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"Arc supports multiple databases (schemas) within a single instance. "
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"Each Arc database appears as a schema in SQL Lab."
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),
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}
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