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Posted to issues@spark.apache.org by "Reynold Xin (JIRA)" <ji...@apache.org> on 2016/01/20 20:21:39 UTC
[jira] [Resolved] (SPARK-12925) Improve HiveInspectors.unwrap for
StringObjectInspector.getPrimitiveWritableObject
[ https://issues.apache.org/jira/browse/SPARK-12925?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Reynold Xin resolved SPARK-12925.
---------------------------------
Resolution: Fixed
Assignee: Rajesh Balamohan
Fix Version/s: 2.0.0
> 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)
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