[jira] [Commented] (FLINK-15343) Add Watermarks options for TwoInputStreamOperator

["Aljoscha Krettek (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-15343?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17008685#comment-17008685 ] 

Aljoscha Krettek commented on FLINK-15343:
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One alternative to this is that users can just override {{processWatermark1/2()}} and implement their own logic. I'm skeptical about adding additional checks and a new option in there if there is an easy workaround.

> Add Watermarks options for TwoInputStreamOperator
> -------------------------------------------------
>
>                 Key: FLINK-15343
>                 URL: https://issues.apache.org/jira/browse/FLINK-15343
>             Project: Flink
>          Issue Type: Improvement
>            Reporter: jocean.shi
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
>   Currently, The "TwoInputStreamOperator" such as "CoBroadcastWithKeyedOperator" "KeyedCoProcessOperator" and the
>  (Co)stream such as "ConnectedStreams" "BroadcastConnectedStream" only support compute watermark by two stream.
>  but user just need one stream to compute watermark in some case.
>       For example: one stream is only rule data or control command, it
>  don't hava event time.
>  I think user has right to choose which stream to compute watermark.



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