Re: [I] [iceberg] SIGSEGV while testing Storage Partition Join [datafusion-comet]

["andygrove (via GitHub)" <gi...@apache.org>]

andygrove commented on issue #2121:
URL: https://github.com/apache/datafusion-comet/issues/2121#issuecomment-3180483815

   The root cause is that we have the wrong `CopyExec` mode in the following native plan, leading to memory corruption due to reuse of mutable buffers.
   
   ```
   SortExec: expr=[col_0@0 ASC, col_2@2 ASC], preserve_partitioning=[false]
     CopyExec [UnpackOrClone]
       FilterExec: col_0@0 IS NOT NULL
         ScanExec: source=[CometBatchScan testhadoop.default.table (unknown)], schema=[col_0: Int64, col_1: Int32, col_2: Timestamp(Microsecond, Some("UTC"))]
   ```


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