suremarc commented on issue #10316: URL: https://github.com/apache/datafusion/issues/10316#issuecomment-2087191235
@alamb Just to be absolutely clear, if the plan consists entirely of Parquet files from a single table, then the `SortPreservingMerge` will be eliminated. As you can see in [this sqllogictest](https://github.com/apache/datafusion/blob/aa8943323618e5761cd0cd361839c007a4572a81/datafusion/sqllogictest/test_files/parquet_sorted_statistics.slt#L96-L108), a single file group is produced if none of the files overlap, and DataFusion correctly understands a `SortPreservingMergeExec` is not required. In particular, after #9593, #6672 should be fixed. That said, it's worth pointing out that `ProgressiveEval` is more general (it can work for arbitrary plans e.g. heterogeneous unions). -- 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]
