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https://issues.apache.org/jira/browse/TAJO-2089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15182618#comment-15182618
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ASF GitHub Bot commented on TAJO-2089:
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GitHub user jinossy opened a pull request:
https://github.com/apache/tajo/pull/972
TAJO-2089: Improve null handling in UDF.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/jinossy/tajo TAJO-2089
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/tajo/pull/972.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #972
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commit 07b64dec0f904e2a9d0453e46340d4ca6efed318
Author: Jinho Kim <[email protected]>
Date: 2016-03-07T05:45:47Z
TAJO-2089: Improve null handling in UDF.
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> Improve null handling in UDF
> ----------------------------
>
> Key: TAJO-2089
> URL: https://issues.apache.org/jira/browse/TAJO-2089
> Project: Tajo
> Issue Type: Improvement
> Components: Function/UDF
> Reporter: Jinho Kim
> Assignee: Jinho Kim
> Priority: Minor
>
> A null value should convert to NullDatum in UDF. if not, it throw a
> TajoInternalError. Many people mistake the null handling.
> So we add null handling, it would be better
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