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https://issues.apache.org/jira/browse/SPARK-1379?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Armbrust resolved SPARK-1379.
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Resolution: Fixed
> Calling .cache() on a SchemaRDD should do something more efficient than
> caching the individual row objects.
> -----------------------------------------------------------------------------------------------------------
>
> Key: SPARK-1379
> URL: https://issues.apache.org/jira/browse/SPARK-1379
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Michael Armbrust
> Assignee: Michael Armbrust
>
> Since rows aren't black boxes we could use InMemoryColumnarTableScan. This
> would significantly reduce GC pressure on the workers.
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