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https://issues.apache.org/jira/browse/SPARK-5680?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Armbrust resolved SPARK-5680.
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Resolution: Fixed
Fix Version/s: 1.4.0
1.3.1
Issue resolved by pull request 4466
[https://github.com/apache/spark/pull/4466]
> Sum function on all null values, should return zero
> ---------------------------------------------------
>
> Key: SPARK-5680
> URL: https://issues.apache.org/jira/browse/SPARK-5680
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Venkata Ramana G
> Priority: Minor
> Fix For: 1.3.1, 1.4.0
>
>
> SELECT sum('a'), avg('a'), variance('a'), std('a') FROM src;
> Current output:
> NULL NULL NULL NULL
> Expected output:
> 0.0 NULL NULL NULL
> This fixes hive udaf_number_format.q
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