[I] Support per-batch custom_metadata on DictionaryBatch (IPC Message field) [arrow-java]

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

ennuite opened a new issue, #1043:
URL: https://github.com/apache/arrow-java/issues/1043

   ### Describe the enhancement requested
   
   Analogous to https://github.com/apache/arrow-java/issues/1035 but for DictionaryBatch. 
   
   The Arrow IPC format supports Message level `custom_metadata`, see https://arrow.apache.org/docs/format/Columnar.html#custom-application-metadata and https://github.com/apache/arrow/blob/main/format/Message.fbs#L154
   
   The DictionaryBatch in this implementation currently has no support for this field.


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Re: [I] Support per-batch custom_metadata on DictionaryBatch (IPC Message field) [arrow-java]

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

ennuite commented on issue #1043:
URL: https://github.com/apache/arrow-java/issues/1043#issuecomment-3970243662

   I created this issue because we noticed during the last Arrow meeting that DictionaryBatch should also have the field.
   As of right now I don't see much interest in having it so I won't be working on it. If anyone is interested please let me know and I'll try to provide an implementation.


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