alamb commented on PR #23128: URL: https://github.com/apache/datafusion/pull/23128#issuecomment-4936912381
> @alamb in this context do nested types encompass dictionary arrays? Yes probably -- though I think a case can be made that explicitly dictionary support might be valuable The thing with Dictionaries is that the dictionary indices for hte same logical value can vary from batch to batch, so we can't just do the grouping based on the dictionary indices We could potentially have an optimized dictionary group values that somehow wraps another group values and does the dictionary translation 🤔 -- 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]
