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>

setup.py

@@ -140,6 +140,7 @@ setup(
         "pinot": ["pinotdb>=0.3.3, <0.4"],
         "postgres": ["psycopg2-binary==2.8.5"],
         "presto": ["pyhive[presto]>=0.4.0"],
+        "trino": ["sqlalchemy-trino>=0.2"],
         "prophet": ["fbprophet>=0.6, <0.7"],
         "redshift": ["sqlalchemy-redshift>=0.8.1, < 0.9"],
         "snowflake": ["snowflake-sqlalchemy>=1.2.3, <1.3"],

superset/db_engine_specs/trino.py

@@ -0,0 +1,58 @@
+# 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 Optional
+
+from superset.db_engine_specs import BaseEngineSpec
+from superset.utils import core as utils
+
+
+class TrinoEngineSpec(BaseEngineSpec):
+    engine = "trino"
+    engine_name = "Trino"
+
+    # pylint: disable=line-too-long
+    _time_grain_expressions = {
+        None: "{col}",
+        "PT1S": "date_trunc('second', CAST({col} AS TIMESTAMP))",
+        "PT1M": "date_trunc('minute', CAST({col} AS TIMESTAMP))",
+        "PT1H": "date_trunc('hour', CAST({col} AS TIMESTAMP))",
+        "P1D": "date_trunc('day', CAST({col} AS TIMESTAMP))",
+        "P1W": "date_trunc('week', CAST({col} AS TIMESTAMP))",
+        "P1M": "date_trunc('month', CAST({col} AS TIMESTAMP))",
+        "P0.25Y": "date_trunc('quarter', CAST({col} AS TIMESTAMP))",
+        "P1Y": "date_trunc('year', CAST({col} AS TIMESTAMP))",
+        # "1969-12-28T00:00:00Z/P1W",  # Week starting Sunday
+        # "1969-12-29T00:00:00Z/P1W",  # Week starting Monday
+        # "P1W/1970-01-03T00:00:00Z",  # Week ending Saturday
+        # "P1W/1970-01-04T00:00:00Z",  # Week ending Sunday
+    }
+
+    @classmethod
+    def convert_dttm(cls, target_type: str, dttm: datetime) -> Optional[str]:
+        tt = target_type.upper()
+        if tt == utils.TemporalType.DATE:
+            value = dttm.date().isoformat()
+            return f"from_iso8601_date('{value}')"
+        if tt == utils.TemporalType.TIMESTAMP:
+            value = dttm.isoformat(timespec="microseconds")
+            return f"from_iso8601_timestamp('{value}')"
+        return None
+
+    @classmethod
+    def epoch_to_dttm(cls) -> str:
+        return "from_unixtime({col})"

tests/db_engine_specs/trino_tests.py

@@ -0,0 +1,34 @@
+# 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 superset.db_engine_specs.trino import TrinoEngineSpec
+from tests.db_engine_specs.base_tests import TestDbEngineSpec
+
+
+class TestPrestoDbEngineSpec(TestDbEngineSpec):
+    def test_convert_dttm(self):
+        dttm = self.get_dttm()
+
+        self.assertEqual(
+            TrinoEngineSpec.convert_dttm("DATE", dttm),
+            "from_iso8601_date('2019-01-02')",
+        )
+
+        self.assertEqual(
+            TrinoEngineSpec.convert_dttm("TIMESTAMP", dttm),
+            "from_iso8601_timestamp('2019-01-02T03:04:05.678900')",
+        )