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https://issues.apache.org/jira/browse/DRILL-3596?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Khurram Faraaz updated DRILL-3596:
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Assignee: Deneche A. Hakim (was: Chris Westin)
> Allow only (<expression>,default offset) in LEAD and LAG window functions as
> input parameters
> ---------------------------------------------------------------------------------------------
>
> Key: DRILL-3596
> URL: https://issues.apache.org/jira/browse/DRILL-3596
> Project: Apache Drill
> Issue Type: Bug
> Components: Execution - Relational Operators
> Affects Versions: 1.2.0
> Reporter: Khurram Faraaz
> Assignee: Deneche A. Hakim
>
> We need to disable the third input parameter in LEAD and LAG window
> functions. We should support this syntax.
> LEAD(<expression>,1)
> LAG(<expression>,1)
> In both the functions above, the second parameter is the default offset
> value, use of any other value must he handled and reported to user as error.
> Use of a third input parameter to both the functions must be disallowed.
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