[
https://issues.apache.org/jira/browse/HIVE-8219?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Xuefu Zhang updated HIVE-8219:
------------------------------
Issue Type: Improvement (was: Bug)
> Multi-Insert optimization, don't sink the source into a file [Spark Branch]
> ---------------------------------------------------------------------------
>
> Key: HIVE-8219
> URL: https://issues.apache.org/jira/browse/HIVE-8219
> Project: Hive
> Issue Type: Improvement
> Components: Spark
> Reporter: Xuefu Zhang
> Labels: Spark-M1
>
> Current implementation split the operator plan at the lowest common ancester
> by inserting one FileSinkOperator and a list of TableScanOperators. Writing
> to a file (by the FS) is expensive. We should be able to insert a
> ReduceSinkOperator instead. The result RDD from the first job can be cached
> and refereed in subsequent Spark jobs.
> This is a followup for HIVE-7503.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
