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From "Gabor Gevay (JIRA)" <j...@apache.org>
Subject [jira] [Reopened] (FLINK-2144) Incremental count, average, and variance for windows
Date Mon, 03 Apr 2017 13:00:43 GMT

     [ https://issues.apache.org/jira/browse/FLINK-2144?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gabor Gevay reopened FLINK-2144:
--------------------------------

Reopening to change it back to "Won't fix", instead of "Fixed"

> Incremental count, average, and variance for windows
> ----------------------------------------------------
>
>                 Key: FLINK-2144
>                 URL: https://issues.apache.org/jira/browse/FLINK-2144
>             Project: Flink
>          Issue Type: New Feature
>          Components: DataStream API
>            Reporter: Gabor Gevay
>            Priority: Minor
>              Labels: statistics
>
> By count I mean the number of elements in the window.
> These can be implemented very efficiently building on FLINK-2143:
> Store: O(1)
> Evict: O(1)
> emitWindow: O(1)



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