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https://issues.apache.org/jira/browse/HIVE-2561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13154702#comment-13154702
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Phabricator commented on HIVE-2561:
-----------------------------------
jsichi has commented on the revision "HIVE-2561 [jira] Add an annotation to
UDFs to allow them to specify additional FILE/JAR resources necessary for
execution".
INLINE COMMENTS
ql/src/java/org/apache/hadoop/hive/ql/exec/FunctionRegistry.java:1091 The
stateful annotation is intended for stuff like running sum, where the state
seen so far affects the results of future evaluations.
The presence of internal state (e.g. file handle) is unrelated to stateful
behavior.
ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDFInFile.java:41
Unit tests run in something like local mode, so for stuff like this, it's
usually a good idea to test on a real cluster too. It's fine to either test
now, or wait until after it gets committed and then test later and open up a
new JIRA issue if there's a problem.
REVISION DETAIL
https://reviews.facebook.net/D507
> Allow UDFs to specify additional FILE/JAR resources necessary for execution
> ---------------------------------------------------------------------------
>
> Key: HIVE-2561
> URL: https://issues.apache.org/jira/browse/HIVE-2561
> Project: Hive
> Issue Type: New Feature
> Reporter: Jonathan Chang
> Assignee: Jonathan Chang
> Attachments: HIVE-2561.D507.1.patch
>
>
> Often times UDFs will have dependencies to external JARs/FILEs. It makes
> sense for these to be encoded by the UDF (rather than having the caller
> remember the set of files that need to be ADDed). Let's add an annotation to
> UDFs which will cause these resources to be auto-added.
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