friendlymatthew commented on issue #9739: URL: https://github.com/apache/arrow-rs/issues/9739#issuecomment-4260009541
I've run into this well. At work, we sample the first row group and apply some simple heuristics (like distinct counts, total value offset size) to decide on encodings, then pass those into `WriterPropertiesBuilder`. That lets us avoid dictionary rollback when we're reasonably confident it won't help I don't think there's anything custom about what we're doing that couldn't be supported upstream -- 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]
