alamb commented on issue #5547: URL: https://github.com/apache/arrow-datafusion/issues/5547#issuecomment-1463750877
One suggestion from @jhorstmann : Rough outline how deduplication could work using existing arrow kernels: sort the array (this would be the expensive part) compare array with a slice of itself starting at offset 1 resulting bitmap indicates duplicates negate the bitmap filter the array using that bitmap -- 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]
