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https://issues.apache.org/jira/browse/FLINK-15861?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17028865#comment-17028865
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Timo Walther commented on FLINK-15861:
--------------------------------------

Table and aggregate functions will be in {{TableEnvironment}} in Flink 1.11. 
However, we haven't thought about how to support FLIP-65 in Python. Maybe those 
function will just use explicit types (without overloading), thus, a heavily 
simplified type inference?

> Change TableEnvironmentImpl to StreamTableaEnvironmentImpl in python blink 
> batch mode 
> --------------------------------------------------------------------------------------
>
>                 Key: FLINK-15861
>                 URL: https://issues.apache.org/jira/browse/FLINK-15861
>             Project: Flink
>          Issue Type: Improvement
>          Components: API / Python
>            Reporter: Huang Xingbo
>            Priority: Major
>             Fix For: 1.10.0, 1.9.3
>
>
> We need to change TableEnvironmentImpl to StreamTableaEnvironmentImpl in 
> python blink batch mode otherwise we can't register TableFunction and 
> AggregateFunction in the mode.



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