Sorry for the noise, I completely missed this part of the documentation 
describing exactly how to do this: 
https://nightlies.apache.org/flink/flink-docs-release-1.14/docs/dev/table/data_stream_api/

________________________________
From: John Tipper <john_tip...@hotmail.com>
Sent: 23 June 2022 21:35
To: user@flink.apache.org <user@flink.apache.org>
Subject: Is it possible to use DataStream API keyBy followed by Table API SQL 
in PyFlink?

Hi all,

In PyFlink, is it possible to use the DataStream API to create a DataStream by 
means of StreamExecutionEnvironment's addSource(...), then perform 
transformations on this data stream using the DataStream API and then convert 
that stream into a form where SQL statements can be executed on it using the 
TableApi?

It's not clear to me whether it's possible to mix and match the APIs, or under 
what circumstances you can (or should/should not) move between the 2.

Many thanks,

John

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