[jira] [Resolved] (SPARK-47363) Initial State without state reader implementation for State API v2.

["Jungtaek Lim (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-47363?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jungtaek Lim resolved SPARK-47363.
----------------------------------
    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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