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https://issues.apache.org/jira/browse/ARROW-2152?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16415197#comment-16415197
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Omer Katz commented on ARROW-2152:
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Possible duplicate of https://issues.apache.org/jira/browse/ARROW-2051
> [Format] UUID type
> ------------------
>
> Key: ARROW-2152
> URL: https://issues.apache.org/jira/browse/ARROW-2152
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Format
> Reporter: Uwe L. Korn
> Priority: Major
>
> Add a UUID type that is physically represented as an 128bit fixed sized
> binary. The addition of the type should add the annotation that a value in
> this column is a UUID. The important benefit would be that in the native
> language object models we could return the respective UUID class, e.g.
> {{java.util.UUID}} in Java and {{uuid.UUID}} in Python. For reference,
> Postgres and Parquet both have a UUID type as well do other data system have
> this small specialization.
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