[
https://issues.apache.org/jira/browse/SPARK-16596?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sean Owen updated SPARK-16596:
------------------------------
Assignee: Eric Liang
> Refactor DataSourceScanExec to do partition discovery at execution instead of
> planning time
> -------------------------------------------------------------------------------------------
>
> Key: SPARK-16596
> URL: https://issues.apache.org/jira/browse/SPARK-16596
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Eric Liang
> Assignee: Eric Liang
> Priority: Minor
> Fix For: 2.1.0
>
>
> Partition discovery is rather expensive, so we should do it at execution time
> instead of during physical planning. Right now there is not much benefit
> since ListingFileCatalog will read scan for all partitions at planning time
> anyways, but this can be optimized in the future.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
