alamb commented on PR #8715: URL: https://github.com/apache/arrow-rs/pull/8715#issuecomment-3527530671
> How is this going to integrate into DataFusion? I feel like `FileScanConfig` will have to lie and say it has this column, etc. I don't have any real plan for the DataFusion integration. FWIW the first usecase of these numbers I think will be various iceberg / other table format integrations to support delete vectors In order to support "virtual columns" in DataFusion, I suspect we will need to update ListingTable to have some notion of virtual columns (in addition to partition columns). Other virtual columns people have talked about are file names, for example, which wouldn't come from the parquet reader but instead would come from the file opening machinery -- 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]
