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Posted to github@arrow.apache.org by "WaterKnight1998 (via GitHub)" <gi...@apache.org> on 2023/02/22 09:43:39 UTC

[GitHub] [arrow-rs] WaterKnight1998 opened a new issue, #3745: SerializedFileReader panicked on next of RowIter

WaterKnight1998 opened a new issue, #3745:
URL: https://github.com/apache/arrow-rs/issues/3745

   **Describe the bug**
   
   I am iterating the RowIter of a `SerializedFileReader`, when I call iter.next() I get the following error:
   
   ```
   thread 'main' panicked at 'called `Option::unwrap()` on a `None` value',
   ```
   
   **To Reproduce**
   ```rust
       let mut file = File::open("test.parquet").unwrap();
       let reader = SerializedFileReader::new(file).unwrap();
       println!("Number of rows: {}", reader.metadata().num_row_groups());
   
       let mut iter = reader.get_row_iter(None).unwrap();
       let element = iter.next();
   ```
   
   **Expected behavior**
   It should return the row
   
   **Additional context**
   Parquet package version 33.0


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[GitHub] [arrow-rs] tustvold commented on issue #3745: SerializedFileReader panicked on next of RowIter

Posted by "tustvold (via GitHub)" <gi...@apache.org>.
tustvold commented on issue #3745:
URL: https://github.com/apache/arrow-rs/issues/3745#issuecomment-1439940763

   I suspect this is a duplicate of https://github.com/apache/arrow-rs/issues/2394 but without a reproducer I cannot debug this


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[GitHub] [arrow-rs] Dandandan commented on issue #3745: SerializedFileReader panicked on next of RowIter

Posted by "Dandandan (via GitHub)" <gi...@apache.org>.
Dandandan commented on issue #3745:
URL: https://github.com/apache/arrow-rs/issues/3745#issuecomment-1439923726

   Looking at your panic, it doesn't error on `.next()` but on `unwrap`


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[GitHub] [arrow-rs] tustvold closed issue #3745: SerializedFileReader panicked on next of RowIter

Posted by "tustvold (via GitHub)" <gi...@apache.org>.
tustvold closed issue #3745: SerializedFileReader panicked on next of RowIter
URL: https://github.com/apache/arrow-rs/issues/3745


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