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https://issues.apache.org/jira/browse/SPARK-39585?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Boyang Jerry Peng updated SPARK-39585:
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Summary: Multiple Stateful Operators in Structured Streaming (was:
Multiple Stateful Operators)
> Multiple Stateful Operators in Structured Streaming
> ---------------------------------------------------
>
> Key: SPARK-39585
> URL: https://issues.apache.org/jira/browse/SPARK-39585
> Project: Spark
> Issue Type: Improvement
> Components: Structured Streaming
> Affects Versions: 3.3.0
> Reporter: Boyang Jerry Peng
> Priority: Major
>
> Currently, Structured Streaming only supports one stateful operator per
> pipeline. This constraint excludes Structured Streaming to be used for many
> use cases such ones involving chained time window aggregations, chained
> stream-stream outer equality join, stream-stream time interval join followed
> by time window aggregation. Enabling multiple stateful operators within a
> pipeline in Structured Streaming will open up many additional use cases for
> its usage as well as be on par with other stream processing engines.
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