wgtmac commented on issue #35304: URL: https://github.com/apache/arrow/issues/35304#issuecomment-1538516563
> In C++, there is a `ORCFileReader::ReadMetadata()`, which is exposed as the `metadata` property in the Python `ORCReader`. Does that already give the relevant information, or is this a different set of metadata? (I know that arrow and parquet also both have file-level metadata as field-level metadata, so the same might be the case here) > > I see that the ORC C++ `orc::Type` has a `getAttributeKeys`, and the proto spec has an `attributes` field for a Type (https://github.com/apache/orc/blob/cd79029e41e9cfe434529f820e73900e6a72797e/proto/orc_proto.proto#L226). Is this the information that you looking for? I think @Fokko is looking for a way to expose `attributes` from ORC. `attributes` store the information about column field-id defined by Apache Iceberg. -- 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]
