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https://issues.apache.org/jira/browse/TAJO-775?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyunsik Choi deleted TAJO-775:
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> Implement the physical executor for window aggregation
> ------------------------------------------------------
>
> Key: TAJO-775
> URL: https://issues.apache.org/jira/browse/TAJO-775
> Project: Tajo
> Issue Type: Sub-task
> Reporter: Hyunsik Choi
>
> See the title. The objective of this issue is to create the window
> aggregation operator. I have a plan to implement the sort-based window
> aggregation operator.
> This operator will support multiple analytic functions with the same
> partition keys and same/different order-by keys in one query. But, it will
> not support the use of multiple analytic functions with different
> partitioning keys in the
> same query.
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