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https://issues.apache.org/jira/browse/SPARK-27322?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-27322:
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Assignee: (was: Apache Spark)
> DataSourceV2: Select from multiple catalogs
> -------------------------------------------
>
> Key: SPARK-27322
> URL: https://issues.apache.org/jira/browse/SPARK-27322
> Project: Spark
> Issue Type: New Feature
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: John Zhuge
> Priority: Major
>
> Support multi-catalog in the following SELECT code paths:
> * SELECT * FROM catalog.db.tbl
> * TABLE catalog.db.tbl
> * JOIN or UNION tables from different catalogs
> * SparkSession.table("catalog.db.tbl")
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