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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2016/06/24 09:39:16 UTC
[jira] [Assigned] (SPARK-16189) Add ExistingRDD logical plan for
input with RDD to have a chance to eliminate serialize/deserialize.
[ https://issues.apache.org/jira/browse/SPARK-16189?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-16189:
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Assignee: Apache Spark
> Add ExistingRDD logical plan for input with RDD to have a chance to eliminate serialize/deserialize.
> ----------------------------------------------------------------------------------------------------
>
> Key: SPARK-16189
> URL: https://issues.apache.org/jira/browse/SPARK-16189
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Takuya Ueshin
> Assignee: Apache Spark
>
> Currently the input {{RDD}} of {{Dataset}} is always serialized to {{RDD\[InternalRow\]}} prior to being as {{Dataset}}, but there is a case that we use {{map}} or {{mapPartitions}} just after converted to {{Dataset}}.
> In this case, serialize and then deserialize happens but it would not be needed.
> This patch adds {{ExistingRDD}} logical plan for input with {{RDD}} to have a chance to eliminate serialize/deserialize.
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