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Posted to dev@parquet.apache.org by "Xinli Shang (Jira)" <ji...@apache.org> on 2021/04/02 02:31:00 UTC

[jira] [Commented] (PARQUET-1827) UUID type currently not supported by parquet-mr

    [ https://issues.apache.org/jira/browse/PARQUET-1827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17313524#comment-17313524 ] 

Xinli Shang commented on PARQUET-1827:
--------------------------------------

It seems the storage size is reduced by ~8%  for the UUID column. 

> UUID type currently not supported by parquet-mr
> -----------------------------------------------
>
>                 Key: PARQUET-1827
>                 URL: https://issues.apache.org/jira/browse/PARQUET-1827
>             Project: Parquet
>          Issue Type: Improvement
>          Components: parquet-mr
>    Affects Versions: 1.11.0
>            Reporter: Brad Smith
>            Assignee: Gabor Szadovszky
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.12.0
>
>
> The parquet-format project introduced a new UUID logical type in version 2.4:
> [https://github.com/apache/parquet-format/blob/master/CHANGES.md]
> This would be a useful type to have available in some circumstances, but it currently isn't supported in the parquet-mr library. Hopefully this feature can be implemented at some point.



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