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Posted to issues@orc.apache.org by "Satish Bhor (JIRA)" <ji...@apache.org> on 2017/07/25 12:47:00 UTC

[jira] [Commented] (ORC-45) Support ZSTD Dictionary Compression

    [ https://issues.apache.org/jira/browse/ORC-45?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16099977#comment-16099977 ] 

Satish Bhor commented on ORC-45:
--------------------------------

[~Downchuck] I am interested in contributing this feature. If possible could you please assign this enhancement to me ?

> Support ZSTD Dictionary Compression 
> ------------------------------------
>
>                 Key: ORC-45
>                 URL: https://issues.apache.org/jira/browse/ORC-45
>             Project: ORC
>          Issue Type: Wish
>            Reporter: Charles Pritchard
>
> ZSTD provides superior processing performance in comparison to deflate/gzip. Dictionary compression provides yet another opportunity for improvement, when applied to columns.
> Implementing dictionary compression per-column may enable other code to be written, such as per-column encryption, which while mentioned in ORC-14, would be taking a different form.



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