You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@arrow.apache.org by "pribor (via GitHub)" <gi...@apache.org> on 2024/11/26 19:22:36 UTC

[I] [java] cannot read datasets with many columns [arrow-java]

pribor opened a new issue, #199:
URL: https://github.com/apache/arrow-java/issues/199

   ### Describe the bug, including details regarding any error messages, version, and platform.
   
   Dataset API gets stuck if one tries to read many columns (100k+) from a parquet or arrow file.  The API works if the amount of columns is narrowed via projection.
   
   **Reproduction:**
   
   Use the code from the [example](https://arrow.apache.org/cookbook/java/dataset.html#constructing-datasets) and try to read a file with 100k columns. No batch will be loaded even if the batch size is 1. 
   
   version: arrow-dataset 11.0
   
   
   
   ### Component(s)
   
   Java


-- 
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: issues-unsubscribe@arrow.apache.org.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org