ldacey commented on issue #36765: URL: https://github.com/apache/arrow/issues/36765#issuecomment-1732705541
I was not aware of this toggle before, but I had massive performance improvements when I turned on pre_buffer From 249 seconds to 2.9 seconds for 1.8 GB of data (2mil+ rows) querying for one month of data. Data is partitioned monthly and goes back to 2018. This was with adlfs filesystem querying for files on Azure Blob. -- 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]
