DuanKuanJun commented on code in PR #32041:
URL: https://github.com/apache/superset/pull/32041#discussion_r1940408846
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superset/db_engine_specs/TDengine.py:
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@@ -0,0 +1,36 @@
+# TDengine driver for Apache SuperSet
+from superset.db_engine_specs.base import BaseEngineSpec
+from urllib import parse
+from typing import Any
+from sqlalchemy import types
+from sqlalchemy.engine.url import make_url, URL # noqa: F401
+
+class TDengineEngineSpec(BaseEngineSpec):
+ engine = "taosws"
+ engine_name = "TDengine"
+ max_column_name_length = 64
+ default_driver = "taosws"
+ sqlalchemy_uri_placeholder =
("taosws://user:******@host:port/dbname[?key=value&key=value...]")
+
+ # time grain
+ _time_grain_expressions = {
+ None: "{col}",
+ "PT1S": "TIMETRUNCATE({col}, 1s, 0)",
+ "PT1M": "TIMETRUNCATE({col}, 1m, 0)",
+ "PT1H": "TIMETRUNCATE({col}, 1h, 0)",
+ "P1D": "TIMETRUNCATE({col}, 1d, 0)",
+ "P1W": "TIMETRUNCATE({col}, 1w, 0)",
+ }
+
+ @classmethod
+ def get_schema_from_engine_params(
+ cls,
+ sqlalchemy_uri: URL,
+ connect_args: dict[str, Any],
+ ) -> Optional[str]:
Review Comment:
> Again, I would prefer not using `Optional`, and use the more modern `|
None` syntax that can be used if you add `from __future__ import annotations`.
resolve , done
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