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Posted to issues@orc.apache.org by "guiyanakuang (via GitHub)" <gi...@apache.org> on 2023/02/17 08:33:39 UTC

[GitHub] [orc] guiyanakuang commented on pull request #1413: Improve Specification documents

guiyanakuang commented on PR #1413:
URL: https://github.com/apache/orc/pull/1413#issuecomment-1434297093

   https://github.com/apache/orc/blob/d403e11b7eab126259fb0683c0eb5c6131fd347b/java/core/src/java/org/apache/orc/impl/StreamName.java#L62-L78
   
   https://github.com/apache/orc/blob/d403e11b7eab126259fb0683c0eb5c6131fd347b/proto/orc_proto.proto#L124-L129
   
   > The order of the data dictionary and length streams in dictionary columns is backwards compared to what all current writers emit;
   
   @deshanxiao ,  I think @HuwCampbell  is right in that the order in which the streams are flushed to the file is actually based on this `compareTo ` method. `LENGTH` is written before `DICTIONARY_DATA` if it is in the same column.


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