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https://issues.apache.org/jira/browse/ARROW-5649?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ben Kietzman reopened ARROW-5649:
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Assignee: Ben Kietzman
In addition to preserving custom metadata, checking for extension type
propagation will require extending the test runners for each language: they
must register an extension type (I arbitrarily nominate uuid from the C++ unit
tests for extension types) which will be serialized to its storage type and the
reserved metadata fields. This must round trip to ensure that those fields are
correctly emplaced and intercepted by each implementation.
> [Integration][C++][Java] Create round trip integration test for extension
> types
> -------------------------------------------------------------------------------
>
> Key: ARROW-5649
> URL: https://issues.apache.org/jira/browse/ARROW-5649
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++, Integration, Java
> Affects Versions: 0.16.0
> Reporter: Micah Kornfield
> Assignee: Ben Kietzman
> Priority: Major
> Fix For: 1.0.0
>
>
> With Java and C++ code merged we should verify round-trip of the type.
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