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feat: first step native support Trino (#13105)
* feat: add TrinoEngineSpec Signed-off-by: Đặng Minh Dũng <dungdm93@live.com> * feat: add trino into extras_require Signed-off-by: Đặng Minh Dũng <dungdm93@live.com> * test: add trino_tests.py Signed-off-by: Đặng Minh Dũng <dungdm93@live.com>
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setup.py
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setup.py
@ -140,6 +140,7 @@ setup(
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"pinot": ["pinotdb>=0.3.3, <0.4"],
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"pinot": ["pinotdb>=0.3.3, <0.4"],
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"postgres": ["psycopg2-binary==2.8.5"],
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"postgres": ["psycopg2-binary==2.8.5"],
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"presto": ["pyhive[presto]>=0.4.0"],
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"presto": ["pyhive[presto]>=0.4.0"],
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"trino": ["sqlalchemy-trino>=0.2"],
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"prophet": ["fbprophet>=0.6, <0.7"],
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"prophet": ["fbprophet>=0.6, <0.7"],
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"redshift": ["sqlalchemy-redshift>=0.8.1, < 0.9"],
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"redshift": ["sqlalchemy-redshift>=0.8.1, < 0.9"],
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"snowflake": ["snowflake-sqlalchemy>=1.2.3, <1.3"],
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"snowflake": ["snowflake-sqlalchemy>=1.2.3, <1.3"],
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58
superset/db_engine_specs/trino.py
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superset/db_engine_specs/trino.py
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@ -0,0 +1,58 @@
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# 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 superset.db_engine_specs import BaseEngineSpec
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from superset.utils import core as utils
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class TrinoEngineSpec(BaseEngineSpec):
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engine = "trino"
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engine_name = "Trino"
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# pylint: disable=line-too-long
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_time_grain_expressions = {
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None: "{col}",
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"PT1S": "date_trunc('second', CAST({col} AS TIMESTAMP))",
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"PT1M": "date_trunc('minute', CAST({col} AS TIMESTAMP))",
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"PT1H": "date_trunc('hour', CAST({col} AS TIMESTAMP))",
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"P1D": "date_trunc('day', CAST({col} AS TIMESTAMP))",
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"P1W": "date_trunc('week', CAST({col} AS TIMESTAMP))",
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"P1M": "date_trunc('month', CAST({col} AS TIMESTAMP))",
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"P0.25Y": "date_trunc('quarter', CAST({col} AS TIMESTAMP))",
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"P1Y": "date_trunc('year', CAST({col} AS TIMESTAMP))",
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# "1969-12-28T00:00:00Z/P1W", # Week starting Sunday
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# "1969-12-29T00:00:00Z/P1W", # Week starting Monday
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# "P1W/1970-01-03T00:00:00Z", # Week ending Saturday
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# "P1W/1970-01-04T00:00:00Z", # Week ending Sunday
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}
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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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value = dttm.date().isoformat()
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return f"from_iso8601_date('{value}')"
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if tt == utils.TemporalType.TIMESTAMP:
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value = dttm.isoformat(timespec="microseconds")
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return f"from_iso8601_timestamp('{value}')"
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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 "from_unixtime({col})"
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34
tests/db_engine_specs/trino_tests.py
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tests/db_engine_specs/trino_tests.py
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@ -0,0 +1,34 @@
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# 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 superset.db_engine_specs.trino import TrinoEngineSpec
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from tests.db_engine_specs.base_tests import TestDbEngineSpec
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class TestPrestoDbEngineSpec(TestDbEngineSpec):
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def test_convert_dttm(self):
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dttm = self.get_dttm()
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self.assertEqual(
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TrinoEngineSpec.convert_dttm("DATE", dttm),
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"from_iso8601_date('2019-01-02')",
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)
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self.assertEqual(
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TrinoEngineSpec.convert_dttm("TIMESTAMP", dttm),
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"from_iso8601_timestamp('2019-01-02T03:04:05.678900')",
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)
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