Jefffrey commented on PR #20469: URL: https://github.com/apache/datafusion/pull/20469#issuecomment-3984103917
> > This seems to suggest return type should be list of nulls instead of just null > > Yes, latest fix aims to address this by returning `NullArray` instead of Scalar `Null` value. Sorry I don't see how this relates? I mean it seems to suggest that a `DataType::Null` input has a `DataType::List(Null)` output, according to my PySpark test. But maybe the test was incorrect, since perhaps Spark introduces some casts? Could we confirm the behaviour if we want to align with Spark here? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
