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https://issues.apache.org/jira/browse/HIVE-2627?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ashutosh Chauhan resolved HIVE-2627.
------------------------------------
Resolution: Fixed
Fix Version/s: 0.13.0
Fixed in 0.13 by HIVE-6670
> NPE on MAP-JOIN with a UDF in an external JAR
> ---------------------------------------------
>
> Key: HIVE-2627
> URL: https://issues.apache.org/jira/browse/HIVE-2627
> Project: Hive
> Issue Type: Bug
> Affects Versions: 0.12.0
> Reporter: Jonathan Chang
> Fix For: 0.13.0
>
>
> When a query is converted into a map join, and it depends on some UDF (ADD
> JAR...; CREATE TEMPORARY FUNCTION...), then an NPE may happen. Here is an
> example.
> SELECT
> some_udf(dummy1) as dummies
> FROM (
> SELECT
> a.dummy as dummy1,
> b.dummy as dummy2
> FROM
> test a
> LEFT OUTER JOIN
> test b
> ON
> a.dummy = b.dummy
> ) c;
> My guess is that the JAR classes are not getting propagated to the
> hashmapjoin operator.
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