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https://issues.apache.org/jira/browse/HIVE-4961?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13770251#comment-13770251
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Eric Hanson commented on HIVE-4961:
-----------------------------------
See the design specification attached to HIVE-4160 for a design description of
this patch.
> Create bridge for custom UDFs to operate in vectorized mode
> -----------------------------------------------------------
>
> Key: HIVE-4961
> URL: https://issues.apache.org/jira/browse/HIVE-4961
> Project: Hive
> Issue Type: Sub-task
> Affects Versions: vectorization-branch
> Reporter: Eric Hanson
> Assignee: Eric Hanson
> Fix For: vectorization-branch
>
> Attachments: HIVE-4961.1-vectorization.patch,
> HIVE-4961.2-vectorization.patch, HIVE-4961.3-vectorization.patch,
> HIVE-4961.4-vectorization.patch, vectorUDF.4.patch, vectorUDF.5.patch,
> vectorUDF.8.patch, vectorUDF.9.patch
>
>
> Suppose you have a custom UDF myUDF() that you've created to extend hive. The
> goal of this JIRA is to create a facility where if you run a query that uses
> myUDF() in an expression, the query will run in vectorized mode.
> This would be a general-purpose bridge for custom UDFs that users add to
> Hive. It would work with existing UDFs.
> I'm considering a separate JIRA for a new kind of custom UDF implementation
> that is vectorized from the beginning, to optimize performance. That is not
> covered by this JIRA.
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