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https://issues.apache.org/jira/browse/HIVE-21547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16868855#comment-16868855
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Gopal V edited comment on HIVE-21547 at 6/20/19 7:04 PM:
---------------------------------------------------------

LGTM - +1

Add a CTAS temp-table with its own sizes would be useful (the stORC format does 
not write any ORC indexes, so the "explain analyze" should show PPD not working 
for a filter)


was (Author: gopalv):
LGTM - +1

> Temp Tables: Use stORC format for temporary tables
> --------------------------------------------------
>
>                 Key: HIVE-21547
>                 URL: https://issues.apache.org/jira/browse/HIVE-21547
>             Project: Hive
>          Issue Type: Improvement
>          Components: ORC
>    Affects Versions: 4.0.0
>            Reporter: Gopal V
>            Assignee: Krisztian Kasa
>            Priority: Major
>         Attachments: HIVE-21547.1.patch, HIVE-21547.2.patch, 
> HIVE-21547.3.patch
>
>
> Using st(reaming)ORC 
> (hive.exec.orc.delta.streaming.optimizations.enabled=true) format has massive 
> performance advantages when creating data-sets which will not be stored for 
> long-term.
> The format is compatible with ORC for vectorization and other features, while 
> being cheaper to write out to filesystem.



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