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Posted to github@arrow.apache.org by "tustvold (via GitHub)" <gi...@apache.org> on 2023/05/15 14:09:29 UTC

[GitHub] [arrow-rs] tustvold commented on issue #4218: Provide "optimal" encoding

tustvold commented on issue #4218:
URL: https://github.com/apache/arrow-rs/issues/4218#issuecomment-1547933827

   > the default encoding is plain
   
   This isn't quite correct, for a V1 writer the default encoding is RLE_DICTIONARY falling back to PLAIN on exceeding the dictionary page size. There are no other non-deprecated encodings supported by the V1 spec. For a V2 writer, the defaults are similar but falling back to DELTA_BYTE_ARRAY for byte array types instead of PLAIN


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