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Posted to issues@spark.apache.org by "Yin Huai (JIRA)" <ji...@apache.org> on 2016/07/20 07:02:20 UTC
[jira] [Assigned] (SPARK-16633) lag/lead 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 ]
Yin Huai reassigned SPARK-16633:
--------------------------------
Assignee: Yin Huai
> lag/lead 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
> 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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