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https://issues.apache.org/jira/browse/CALCITE-2173?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16836434#comment-16836434
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Lai Zhou commented on CALCITE-2173:
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[~masayuki038] ,are you still work on this?
What's your recent plan? I'm glad to take some time on this issue with you,
If we have the arrow adapter, we can support vectorized udf execution ,I'd like
to see the performance improvement.
> Sample implementation of ArrowAdapter
> -------------------------------------
>
> Key: CALCITE-2173
> URL: https://issues.apache.org/jira/browse/CALCITE-2173
> Project: Calcite
> Issue Type: Improvement
> Reporter: Masayuki Takahashi
> Priority: Minor
>
> I try to implement Apache Arrow adaper.
> [https://github.com/masayuki038/calcite/tree/arrow2/arrow/src/main/java/org/apache/calcite/adapter/arrow]
> Issues:
> * Add ArrowJoin, ArrowUnion, etc..
> * This Arrow Adapter use org.apache.calcite.adapter.enumerable.PhysTypeImpl.
> So I have added 'of' method on PhysType to create PhysTypeImpl instance since
> it can't access from arrow package.
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