andygrove commented on PR #3466:
URL: 
https://github.com/apache/datafusion-comet/pull/3466#issuecomment-3898339698

   Test failure example:
   
   ```
   2026-02-13T16:58:50.3294698Z - hash functions *** FAILED *** (392 
milliseconds)
   2026-02-13T16:58:50.3299944Z   org.apache.spark.SparkException: Job aborted 
due to stage failure: Task 4 in stage 3753.0 failed 1 times, most recent 
failure: Lost task 4.0 in stage 3753.0 (TID 12908) (localhost executor driver): 
org.apache.comet.CometNativeException: could not cast array of type Binary to 
arrow_array::array::byte_array::GenericByteArray<arrow_array::types::GenericStringType<i32>>.
   2026-02-13T16:58:50.3302951Z This issue was likely caused by a bug in 
DataFusion's code. Please help us to resolve this by filing a bug report in our 
issue tracker: https://github.com/apache/datafusion/issues
   ```


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