sunchao commented on issue #4973: URL: https://github.com/apache/arrow-datafusion/issues/4973#issuecomment-1461017703
I don't think DF format considers dictionary 😂 . In the POC for group-by columns we basically "unpack" the dictionary arrays into plain rows while doing the columnar to row conversion. For aggregate columns, we initialize the buffer (using DF format) based on the schema of the aggregates. If dictionary type shows up in any of the aggregates, we'll remove it and replace it with its value type. -- 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]
