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https://issues.apache.org/jira/browse/FLINK-15972?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hequn Cheng reassigned FLINK-15972:
-----------------------------------

    Assignee: Huang Xingbo

> Add Python building blocks to make sure the basic functionality of Python 
> TableFunction could work
> --------------------------------------------------------------------------------------------------
>
>                 Key: FLINK-15972
>                 URL: https://issues.apache.org/jira/browse/FLINK-15972
>             Project: Flink
>          Issue Type: Sub-task
>          Components: API / Python
>            Reporter: Huang Xingbo
>            Assignee: Huang Xingbo
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.11.0
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> We need to add a few Python building blocks such as TableFunctionOperation, 
> TableFunctionRowCoder, etc for Python TableFunction execution. 
> TableFunctionOperation is subclass of Operation in Beam and 
> TableFunctionRowCoder, etc are subclasses of Coder in Beam. These classes 
> will be registered into the Beam’s portability framework to make sure they 
> take effects.
> This PR makes sure that a basic end to end Python UDTF could be executed.



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