[jira] [Assigned] (FLINK-20517) Support mixed keyed/non-keyed operations in BATCH execution mode

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

     [ https://issues.apache.org/jira/browse/FLINK-20517?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aljoscha Krettek reassigned FLINK-20517:
----------------------------------------

    Assignee: Aljoscha Krettek  (was: Dawid Wysakowicz)

> Support mixed keyed/non-keyed operations in BATCH execution mode
> ----------------------------------------------------------------
>
>                 Key: FLINK-20517
>                 URL: https://issues.apache.org/jira/browse/FLINK-20517
>             Project: Flink
>          Issue Type: Improvement
>          Components: API / DataStream
>    Affects Versions: 1.12.0
>            Reporter: Dawid Wysakowicz
>            Assignee: Aljoscha Krettek
>            Priority: Critical
>              Labels: pull-request-available
>             Fix For: 1.12.1
>
>
> Using the batch state backend requires that the inputs are sorted by a key. Right now when sorting, we sort either all of the inputs or none. It is because we expect that the same key is consumed from all inputs at the same time.
> In the process of implementing FLINK-20491 we can also add support for mixed non-keyed/keyed operators.



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