feat: method for dynamic allows_alias_in_select#25882
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| raise NotImplementedError() | ||
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| @property | ||
| def database(self) -> builtins.type["Database"]: |
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SUMMARY
DB engine specs have an attribute called
allows_alias_in_select, indicating if they support aliases inSELECTstatements. For Dremio, this attribute is version dependent — see the fix in their release notes.Because of that, we've been ping-ponging on the attribute. First I disabled it in #23872, and later it was re-enabled in #25657 when the fix came out. Since we have Superset users running older versions, I added a new class method
get_allows_alias_in_select, that uses theversionfield in the database extra configuration.Note that this requires users running Dremio < 24.1.0 to explicitly add the
versionfield when configuring their databases. I'm not sure if we could determine the version at runtime, but even if we could it would require us to run a pre-query every time, which is needlessly expensive.Also note that the
versionfield is already used in Presto for version-dependent features.BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF
N/A
TESTING INSTRUCTIONS
ADDITIONAL INFORMATION