Dandandan opened a new pull request #9271: URL: https://github.com/apache/arrow/pull/9271
Still WIP, but this shows the concept for improving the situation described in https://issues.apache.org/jira/browse/ARROW-11300. The current situation is that we The PR changes the algorithm to: * Create indices offsets of all keys * `take` the arrays based on indices in one go (so it only requires one big allocation * Use `slice` to look into the arrays There still ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: [email protected]
