[jira] [Assigned] (FLINK-36575) ExecutionVertexInputInfo supports consuming subpartition groups

["Junrui Lee (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-36575?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Junrui Lee reassigned FLINK-36575:
----------------------------------

    Assignee: Lei Yang

> ExecutionVertexInputInfo supports consuming subpartition groups
> ---------------------------------------------------------------
>
>                 Key: FLINK-36575
>                 URL: https://issues.apache.org/jira/browse/FLINK-36575
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Runtime / Coordination
>            Reporter: Lei Yang
>            Assignee: Lei Yang
>            Priority: Major
>              Labels: pull-request-available
>
> Currently, the ExecutionVertexInputInfo describes the task's input through a combination of a PartitionRange and a SubpartitionRange. However, in the case of skewed join optimization, we need to split a group of data corresponding to the specific key, which may result in a downstream task subscribing to multiple combinations of PartitionRanges and SubpartitionRanges. 
> Therefore, we need to modify the ExecutionVertexInputInfo to describe the input data as multiple combinations of PartitionRanges and SubpartitionRanges to meet the requirements of the aforementioned scenario and improve Flink's flexibility in describing the task's inputs.



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