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https://issues.apache.org/jira/browse/HIVE-7333?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14209321#comment-14209321
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Xuefu Zhang commented on HIVE-7333:
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Hi [~rxin], thanks for your input. This is rather interesting. Recently we run
some performance testing on ORC file. It actcually performs worse when
vectorization is on. I guess this stands to reason because rows are still read
one at a time.
We would like to make Spark RDD work with vectorization, though I don't have a
concrete idea of how. It seems likely that work is needed on both Spark and
Hive. Any further input would be grateful. Thanks!
> Create RDD translator, translating Hive Tables into Spark RDDs [Spark Branch]
> -----------------------------------------------------------------------------
>
> Key: HIVE-7333
> URL: https://issues.apache.org/jira/browse/HIVE-7333
> Project: Hive
> Issue Type: Sub-task
> Components: Spark
> Reporter: Xuefu Zhang
> Assignee: Rui Li
> Labels: Spark-M1
>
> Please refer to the design specification.
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