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Posted to issues@spark.apache.org by "Josh Rosen (JIRA)" <ji...@apache.org> on 2016/08/31 21:16:20 UTC
[jira] [Updated] (SPARK-16633) lag/lead using constant input values
does not return the default value when the offset row does not exist
[ https://issues.apache.org/jira/browse/SPARK-16633?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Josh Rosen updated SPARK-16633:
-------------------------------
Labels: correctness (was: )
> lag/lead using constant input values does not return the default value when the offset row does not exist
> ---------------------------------------------------------------------------------------------------------
>
> Key: SPARK-16633
> URL: https://issues.apache.org/jira/browse/SPARK-16633
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.0.0
> Reporter: Yin Huai
> Assignee: Yin Huai
> Priority: Critical
> Labels: correctness
> Fix For: 2.0.1, 2.1.0
>
> Attachments: window_function_bug.html
>
>
> Please see the attached notebook. Seems lag/lead somehow fail to recognize that a offset row does not exist and generate wrong results.
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