jorisvandenbossche commented on PR #37274: URL: https://github.com/apache/arrow/pull/37274#issuecomment-1697372851
AFAIK all of the `FileReader::ReadTable`, `ReadRowGroup`, etc methods can read columns in parallel depending on a setting on the reader object (`FileReader::set_use_threads`, which in pyarrow is exposed as a `use_threads` keyword in the single file Parquet reader). This for the plain Parquet reader, not the Parquet scanning through dataset, which I think has its own logic of threading. -- 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]
