[GitHub] [arrow] zagto opened a new issue, #33830: Clarify handing of Null values in REE encoding

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

zagto opened a new issue, #33830:
URL: https://github.com/apache/arrow/issues/33830

   ### Describe the bug, including details regarding any error messages, version, and platform.
   
   In the Columnar format, the handling of null values in the REE type is not described properly.
   
   - The null count of the parent array should be 0, since the parent has no validity bitmap (and there is a general assumption in arrow code that a non-zero null count means the standard validity bitmap is present)
   - The document only indirectly describes how Null values are encoded
   
   Thanks @tustvold for catching this!
   
   [1] [https://github.com/apache/arrow/pull/13333#discussion_r1083470362](https://github.com/apache/arrow/pull/13333#discussion_r1083470362)
   
   ### Component(s)
   
   Documentation, Format


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[GitHub] [arrow] zeroshade closed issue #33830: Clarify handling of Null values in REE encoding

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

zeroshade closed issue #33830: Clarify handling of Null values in REE encoding
URL: https://github.com/apache/arrow/issues/33830


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