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https://issues.apache.org/jira/browse/FLINK-2210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14585201#comment-14585201
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ASF GitHub Bot commented on FLINK-2210:
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GitHub user Shiti opened a pull request:
https://github.com/apache/flink/pull/834
[FLINK-2210] Table API support for aggregation on columns with null
When a value is null, the AggregationFunction's aggregate method is not
called.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/Shiti/flink FLINK-2210
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/834.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 #834
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commit f37d4c04ee585c91e6f865eb58b893c863cf4df9
Author: Shiti <ssaxena....@gmail.com>
Date: 2015-06-14T18:59:02Z
[FLINK-2210] Table API support for aggregation on columns with null values
----
> Table API aggregate by ignoring null values
> -------------------------------------------
>
> Key: FLINK-2210
> URL: https://issues.apache.org/jira/browse/FLINK-2210
> Project: Flink
> Issue Type: Bug
> Reporter: Shiti Saxena
> Assignee: Shiti Saxena
> Priority: Minor
>
> Attempting to aggregate on columns which may have null values results in
> NullPointerException.
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