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From "Eric Hanson (JIRA)" <>
Subject [jira] [Updated] (HIVE-4961) Create bridge for custom UDFs to operate in vectorized mode
Date Thu, 12 Sep 2013 23:52:52 GMT


Eric Hanson updated HIVE-4961:

    Attachment: HIVE-4961.1-vectorization.patch
> Create bridge for custom UDFs to operate in vectorized mode
> -----------------------------------------------------------
>                 Key: HIVE-4961
>                 URL:
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Eric Hanson
>            Assignee: Eric Hanson
>         Attachments: HIVE-4961.1-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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