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https://issues.apache.org/jira/browse/SPARK-47363?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jungtaek Lim resolved SPARK-47363.
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Fix Version/s: 4.0.0
Resolution: Fixed
Issue resolved by pull request 45467
[https://github.com/apache/spark/pull/45467]
> Initial State without state reader implementation for State API v2.
> -------------------------------------------------------------------
>
> Key: SPARK-47363
> URL: https://issues.apache.org/jira/browse/SPARK-47363
> 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 PR adds support for users to provide a Dataframe that can be used to
> instantiate state for the query in the first batch for arbitrary state API v2.
> Note that populating the initial state will only happen for the first batch
> of the new streaming query. Trying to re-initialize state for the same
> grouping key will result in an error.
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