abellgithub commented on issue #447: URL: https://github.com/apache/parquet-format/issues/447#issuecomment-3411800898
> > You could create a data dictionary of predefined keys that readers/writers can create/access if they choose. The file format can remain as it is. > > Yes, one downside is this gets a little awkward because key value metadata for columns today is at a row-group level. which means for file level metadata one would need to define a serialization format for mapping column to description. Could you add optional Key/Value Metadata to `SchemaElement`? This is more general than a `description` field. It might also to eliminate the need for some extension type handling. -- 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]
