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Posted to issues@spark.apache.org by "Dongjoon Hyun (JIRA)" <ji...@apache.org> on 2019/06/17 15:51:00 UTC
[jira] [Resolved] (SPARK-28066) Optimize UTF8String.trim() for
common case of no whitespace
[ https://issues.apache.org/jira/browse/SPARK-28066?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dongjoon Hyun resolved SPARK-28066.
-----------------------------------
Resolution: Fixed
Fix Version/s: 3.0.0
This is resolved via https://github.com/apache/spark/pull/24884
> Optimize UTF8String.trim() for common case of no whitespace
> -----------------------------------------------------------
>
> Key: SPARK-28066
> URL: https://issues.apache.org/jira/browse/SPARK-28066
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 2.4.3
> Reporter: Sean Owen
> Assignee: Sean Owen
> Priority: Minor
> Fix For: 3.0.0
>
>
> {{UTF8String.trim()}} allocates a new object even if the string has no whitespace, when it can just return itself. A simple check for this case makes the method about 3x faster in the common case.
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