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Posted to issues@flink.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2020/05/11 10:00:11 UTC

[jira] [Updated] (FLINK-17610) Align the behavior of result of internal map state to return empty iterator

     [ https://issues.apache.org/jira/browse/FLINK-17610?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated FLINK-17610:
-----------------------------------
    Labels: pull-request-available  (was: )

> Align the behavior of result of internal map state to return empty iterator
> ---------------------------------------------------------------------------
>
>                 Key: FLINK-17610
>                 URL: https://issues.apache.org/jira/browse/FLINK-17610
>             Project: Flink
>          Issue Type: Improvement
>          Components: Runtime / State Backends
>    Affects Versions: 1.11.0
>            Reporter: Nicholas Jiang
>            Priority: Minor
>              Labels: pull-request-available
>
> There are different behaviors of result of internal map state. For HeapMapState, #entries(), #keys(), #values(), and #iterator() would all return null. However, for RocksDBMapState, #entries() would return null, while #keys(), #values(), #iterator() would return empty iterator. UserFacingMapState would align these behaviors to empty iterator for users, therefore this should better align these internal behavior to return empty iterator instead of null.



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