[I] [Go][Parquet] Reslicing for nullable dictionary in chunked writer is bugged [arrow]

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

elliotmr opened a new issue, #39925:
URL: https://github.com/apache/arrow/issues/39925

   ### Describe the bug, including details regarding any error messages, version, and platform.
   
   If you create a dictionary array that is marked as nullable but doesn't have any null values in it, the code executes some re-clinging logic that is faulty on line:
   
   https://github.com/apache/arrow/blob/main/go/parquet/file/column_writer.go#L662C84-L662C99
   
   There are 2 problems:
   
   1. It assumes that the underlying value array is Int32, this is not a requirement.
   2. The end of the slice needs to have the start of the slice added onto it or you will have a negative array length.
   
   
   ### Component(s)
   
   Go


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Re: [I] [Go][Parquet] Reslicing for nullable dictionary in chunked writer is bugged [arrow]

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

zeroshade closed issue #39925: [Go][Parquet] Reslicing for nullable dictionary in chunked writer is bugged
URL: https://github.com/apache/arrow/issues/39925


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