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https://issues.apache.org/jira/browse/CALCITE-4891?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17445428#comment-17445428
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Julian Hyde commented on CALCITE-4891:
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Do we have any tests for UUID fields? If not, this is basically a feature
request, "Support UUID fields". I haven't checked the spec, but it seems
reasonable to retrieve UUID fields (i.e. fields whose declared SQL type is
UUID) as java.lang.String, java.util.UUID and byte[]. Any others?
> Avatica can't handle uuid fields saying 'Cannot handle class java.util.UUID
> as bytes'
> -------------------------------------------------------------------------------------
>
> Key: CALCITE-4891
> URL: https://issues.apache.org/jira/browse/CALCITE-4891
> Project: Calcite
> Issue Type: Bug
> Components: avatica
> Affects Versions: avatica-1.19.0
> Reporter: Jamie Taylor
> Priority: Major
>
> When I try and fetch a value of type UUID through an avatica proxy I get an
> error saying 'Cannot handle class java.util.UUID as bytes'
> If I change the serilisation from json to protobuf I still get the exact same
> error.
> Other types that aren't supported such as blob give messages saying they
> aren't supported, which makes this look like a bug.
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