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Posted to dev@parquet.apache.org by "Ryan Blue (JIRA)" <ji...@apache.org> on 2017/10/10 19:54:00 UTC

[jira] [Assigned] (PARQUET-1125) Add UUID logical type

     [ https://issues.apache.org/jira/browse/PARQUET-1125?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ryan Blue reassigned PARQUET-1125:
----------------------------------

    Assignee: Ryan Blue

> Add UUID logical type
> ---------------------
>
>                 Key: PARQUET-1125
>                 URL: https://issues.apache.org/jira/browse/PARQUET-1125
>             Project: Parquet
>          Issue Type: Task
>          Components: parquet-format
>            Reporter: Ryan Blue
>            Assignee: Ryan Blue
>
> I think we should add a UUID logical type that is stored in a 16-byte fixed. The common string representation is 36 bytes instead of the 16 required. UUIDs are commonly used as unique identifiers, so it makes sense to have a good support. A binary representation will reduce memory when writing or building bloom filters and will reduce cycles needed to compare values.



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