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https://issues.apache.org/jira/browse/SPARK-15956?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-15956:
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Assignee: Apache Spark
> When unwrapping ORC avoid pattern matching at runtime
> -----------------------------------------------------
>
> Key: SPARK-15956
> URL: https://issues.apache.org/jira/browse/SPARK-15956
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Brian Cho
> Assignee: Apache Spark
> Priority: Minor
>
> When unwrapping ORC values, pattern matching for each data value at runtime
> hurts performance. This should be avoided.
> Instead, we can run pattern matching once and return a function that is
> subsequently used to unwrap each data value. This is already implemented for
> certain primitive types. We should implement for the remaining types,
> including complex types (e.g, list, map).
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