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Posted to issues@hive.apache.org by "Rajesh Balamohan (JIRA)" <ji...@apache.org> on 2016/12/19 03:06:59 UTC
[jira] [Updated] (HIVE-15300) Reuse table information in
SemanticAnalyzer::getMetaData to reduce compilation time
[ https://issues.apache.org/jira/browse/HIVE-15300?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Rajesh Balamohan updated HIVE-15300:
------------------------------------
Attachment: HIVE-15300.3.patch
Incorporated [~pxiong]'s comments.
My last run was on old code accidentally which caused the issue. Resubmitting the patch for jenkins.
> Reuse table information in SemanticAnalyzer::getMetaData to reduce compilation time
> -----------------------------------------------------------------------------------
>
> Key: HIVE-15300
> URL: https://issues.apache.org/jira/browse/HIVE-15300
> Project: Hive
> Issue Type: Improvement
> Components: Parser
> Reporter: Rajesh Balamohan
> Assignee: Rajesh Balamohan
> Priority: Minor
> Attachments: HIVE-15300.1.patch, HIVE-15300.2.patch, HIVE-15300.3.patch
>
>
> E.g Q88 in tpc-ds takes lots of time to compile and it ends up getting the table details for the same table repeatedly. It took 20+seconds to compile the query.
> It would be good to reuse the table information in SemanticAnalyzer::getMetadata.
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