[
https://issues.apache.org/jira/browse/SPARK-12925?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15176734#comment-15176734
]
Rajesh Balamohan commented on SPARK-12925:
------------------------------------------
Earlier fix had a problem when Text was reused. Posting a revised patch for
review which fixes the issue when Text is reused.
> Improve HiveInspectors.unwrap for
> StringObjectInspector.getPrimitiveWritableObject
> ----------------------------------------------------------------------------------
>
> Key: SPARK-12925
> URL: https://issues.apache.org/jira/browse/SPARK-12925
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Rajesh Balamohan
> Assignee: Rajesh Balamohan
> Fix For: 2.0.0
>
> Attachments: SPARK-12925_profiler_cpu_samples.png
>
>
> Text is in UTF-8 and converting it via "UTF8String.fromString" incurs
> decoding and encoding, which turns out to be expensive. (to be specific:
> https://github.com/apache/spark/blob/0d543b98f3e3da5053f0476f4647a765460861f3/sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveInspectors.scala#L323)
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
