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https://issues.apache.org/jira/browse/SPARK-13353?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15176598#comment-15176598
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Davies Liu commented on SPARK-13353:
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[~rxin] Any idea on this one? One workaround could be packing rows as batches
before collect a DataFrame, then deserialize them in collect() on driver.
> Use UnsafeRowSerializer to collect DataFrame
> --------------------------------------------
>
> Key: SPARK-13353
> URL: https://issues.apache.org/jira/browse/SPARK-13353
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Davies Liu
>
> UnsafeRowSerializer should be more efficient than JavaSerializer or
> KyroSerializer for DataFrame.
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