andygrove opened a new pull request, #23852: URL: https://github.com/apache/datafusion/pull/23852
## Which issue does this PR close? Part of the datafusion-spark epic: https://github.com/apache/datafusion/issues/15914 ## Rationale for this change `date_from_unix_date` is a Spark built-in that creates a date from the number of days since the Unix epoch (1970-01-01). It is the inverse of the existing `unix_date` function and is not yet available in the `datafusion-spark` crate. ## What changes are included in this PR? - Adds `SparkDateFromUnixDate` under `datafusion/spark/src/function/datetime/`, registered in the datetime module. The implementation lowers to a single `Int32 -> Date32` cast in `simplify()`, mirroring the existing `unix_date` idiom, since both types represent days since epoch. - Adds sqllogictest coverage under `test_files/spark/datetime/date_from_unix_date.slt` for scalar, array, negative, and NULL inputs. ## Are these changes tested? Yes, via sqllogictest with scalar and array inputs (including negative and NULL cases). -- 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]
