[
https://issues.apache.org/jira/browse/HIVE-11291?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Ashutosh Chauhan updated HIVE-11291:
------------------------------------
Attachment: HIVE-11291.patch
In most cases, we are trying to do exact matches, regex matching is not
required.
[~hsubramaniyan] Can you take a look?
> Avoid allocation storm while doing rule matching on operator/expression trees
> -----------------------------------------------------------------------------
>
> Key: HIVE-11291
> URL: https://issues.apache.org/jira/browse/HIVE-11291
> Project: Hive
> Issue Type: Improvement
> Reporter: Ashutosh Chauhan
> Assignee: Ashutosh Chauhan
> Attachments: HIVE-11291.patch
>
>
> RuleRegExMatch repeatedly allocates string while trying to find a matching
> pattern. This results in huge GC churn for large trees.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
