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From "yinhua.dai" <yinhua.2...@outlook.com>
Subject Re: Always trigger calculation of a tumble window in Flink SQL
Date Wed, 07 Nov 2018 01:55:47 GMT
Hi Piotr,

Can you elaborate more on the solution with the custom operator?
I don't think there will be any records from the SQL query if no input data
in coming in within the time window even if we convert the result to a

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