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https://issues.apache.org/jira/browse/SPARK-37377?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chao Sun updated SPARK-37377:
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Summary: Initial implementation of Storage-Partitioned Join (was: Refactor
V2 Partitioning interface and remove deprecated usage of Distribution)
> Initial implementation of Storage-Partitioned Join
> --------------------------------------------------
>
> Key: SPARK-37377
> URL: https://issues.apache.org/jira/browse/SPARK-37377
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.3.0
> Reporter: Chao Sun
> Assignee: Chao Sun
> Priority: Major
> Fix For: 3.4.0
>
>
> Currently {{Partitioning}} is defined as follow:
> {code:scala}
> @Evolving
> public interface Partitioning {
> int numPartitions();
> boolean satisfy(Distribution distribution);
> }
> {code}
> There are two issues with the interface: 1) it uses a deprecated
> {{Distribution}} interface, and should switch to
> {{org.apache.spark.sql.connector.distributions.Distribution}}. 2) currently
> there is no way to use this in join where we want to compare reported
> partitionings from both sides and decide whether they are "compatible" (and
> thus allows Spark to eliminate shuffle).
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