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https://issues.apache.org/jira/browse/IMPALA-10619?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on IMPALA-10619 started by Aman Sinha.
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> Enable external FE to leverage standardization of first_value/last_value
> functions
> ----------------------------------------------------------------------------------
>
> Key: IMPALA-10619
> URL: https://issues.apache.org/jira/browse/IMPALA-10619
> Project: IMPALA
> Issue Type: Sub-task
> Components: Frontend
> Reporter: Aman Sinha
> Assignee: Aman Sinha
> Priority: Major
>
> The FIRST_VALUE, LAST _VALUE functions go through standardization process in
> AnalyticExpr where they may be rewritten with different number of parameters
> or with different window frame. In order for an external FE to leverage this
> standardization, some minor changes are needed to allow overriding of
> creation of a FunctionCallExpr.
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