alamb commented on issue #7715: URL: https://github.com/apache/arrow-rs/issues/7715#issuecomment-3062701191
> > > > I also agree with this [@scovich](https://github.com/scovich) -- however, I am not quite sure what the API would look like yet so I am not sure yet what ticket to file > > The public API seems simple enough? A shredded variant column would (physically) be a `StructArray` with `typed_value` alongside its `metadata` and `value` fields. I would expect an `unshred_variant` kernel to take such an input, and produce an output that does _not_ have a `typed_value` column any more. The [shredding spec](https://github.com/apache/parquet-format/blob/master/VariantShredding.md#variant-metadata) requires that the `metadata` column already contain every needed variant path name, so it's really just a matter of rewriting the `value` column under the hood. This makes sense to me. After some sleep and coding, I think it would be a natural follow on when we have `VariantArray` that encapsulates the shredding - https://github.com/apache/arrow-rs/pull/7905 Basically a kernel like ```rust /// Unshreds Variant fn unshred_variant(input: VariantArray) -> VariantArray { ... } ``` -- 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: github-unsubscr...@arrow.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
