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https://issues.apache.org/jira/browse/SPARK-47272?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jungtaek Lim resolved SPARK-47272.
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Fix Version/s: 4.0.0
Resolution: Fixed
Issue resolved by pull request 45341
[https://github.com/apache/spark/pull/45341]
> MapState Implementation for State V2
> ------------------------------------
>
> Key: SPARK-47272
> URL: https://issues.apache.org/jira/browse/SPARK-47272
> Project: Spark
> Issue Type: Task
> Components: Structured Streaming
> Affects Versions: 4.0.0
> Reporter: Jing Zhan
> Assignee: Jing Zhan
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
>
> This task adds changes for MapState implementation in State Api v2. This
> implementation adds a new encoder/decoder to encode grouping key and user key
> into a composite key to be put into RocksDB so that we could retrieve
> key-value pair by user specified user key by one rocksdb get.
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