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https://issues.apache.org/jira/browse/FLINK-28010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17563546#comment-17563546
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Yun Tang commented on FLINK-28010:
----------------------------------

[~Ming Li] Since we do not have a special separator between the primary key and 
user key, we need to use the next byte array to represent the prefix bytes. If 
so, I think we can make this.

> Use deleteRange to optimize the clear operation of RocksDBMapState.
> -------------------------------------------------------------------
>
>                 Key: FLINK-28010
>                 URL: https://issues.apache.org/jira/browse/FLINK-28010
>             Project: Flink
>          Issue Type: Improvement
>          Components: Runtime / State Backends
>            Reporter: ming li
>            Priority: Major
>
> [FLINK-21321|https://issues.apache.org/jira/browse/FLINK-21321] has 
> introduced {{deleteRange}} for fast clipping of Incremental checkpoint, so 
> can the {{clear}} method in {{RocksDBMapState}} be replaced with 
> {{{}deleteRange{}}}?



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