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https://issues.apache.org/jira/browse/FLINK-7293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16106882#comment-16106882
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Dawid Wysakowicz edited comment on FLINK-7293 at 7/31/17 7:04 AM:
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I agree there is sort by time, but if the previous operator before CEP would
sort both by the time and custom order, the sorting in CEP would not have any
impact.
You could even reuse the code from DataStreamSort.
was (Author: dawidwys):
I agree there is sort by time, but if the previous operator before CEP would
sort both by the time and custom order, the sorting in CEP would not have any
impact.
> Support custom order by in PatternStream
> ----------------------------------------
>
> Key: FLINK-7293
> URL: https://issues.apache.org/jira/browse/FLINK-7293
> Project: Flink
> Issue Type: Sub-task
> Components: CEP
> Reporter: Dian Fu
> Assignee: Dian Fu
>
> Currently, when {{ProcessingTime}} is configured, the events are fed to NFA
> in the order of the arriving time and when {{EventTime}} is configured, the
> events are fed to NFA in the order of the event time. It should also allow
> custom {{order by}} to allow users to define the order of the events besides
> the above factors.
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