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Posted to issues@spark.apache.org by "Cheng Lian (JIRA)" <ji...@apache.org> on 2016/07/20 00:14:20 UTC

[jira] [Updated] (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 ]

Cheng Lian updated SPARK-16633:
-------------------------------
    Attachment: window_function_bug.html

JIRA went down right before [~yhuai] tried to upload the notebook mentioned in the description. Here it is.

> 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
>            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.



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