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https://issues.apache.org/jira/browse/SPARK-18478?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15673017#comment-15673017
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Takeshi Yamamuro commented on SPARK-18478:
------------------------------------------
[~rxin] seems we have some performance gains;
https://github.com/apache/spark/compare/master...maropu:SupportHiveUdfCodegen#diff-f781931d35e340e5550357fbb28d14e8R37
{code}
/*
Java HotSpot(TM) 64-Bit Server VM 1.8.0_31-b13 on Mac OS X 10.10.2
Intel(R) Core(TM) i7-4578U CPU @ 3.00GHz
Call Hive UDF: Best/Avg Time(ms) Rate(M/s) Per
Row(ns) Relative
-------------------------------------------------------------------------------------------
Call Hive UDF wholestage off 3 / 4 40941.7
0.0 1.0X
Call Hive UDF wholestage on 1 / 2 96620.3
0.0 2.4X
*/
{code}
> Support codegen for Hive UDFs
> -----------------------------
>
> Key: SPARK-18478
> URL: https://issues.apache.org/jira/browse/SPARK-18478
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.0.2
> Reporter: Takeshi Yamamuro
>
> Spark currently does not codegen Hive UDFs in hiveUDFs.
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