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| author | zzcclp <xm_zzc@sina.com> | 2015-03-25 19:11:04 +0800 |
|---|---|---|
| committer | Cheng Lian <lian@databricks.com> | 2015-03-25 19:11:04 +0800 |
| commit | 64262ed99912e780b51f240a14dc98fc3cdf916d (patch) | |
| tree | 3d4851ce225809751b24da9e069161149d3927d9 /mllib/src | |
| parent | c5cc41468e8709d09c09289bb55bc8edc99404b1 (diff) | |
| download | spark-64262ed99912e780b51f240a14dc98fc3cdf916d.tar.gz spark-64262ed99912e780b51f240a14dc98fc3cdf916d.tar.bz2 spark-64262ed99912e780b51f240a14dc98fc3cdf916d.zip | |
[SPARK-6483][SQL]Improve ScalaUdf called performance.
As issue [SPARK-6483](https://issues.apache.org/jira/browse/SPARK-6483) description, ScalaUdf is low performance because of calling *asInstanceOf* to convert per record.
With this, the performance of ScalaUdf is the same as other case.
thank lianhuiwang for telling me how to resolve this problem.
Author: zzcclp <xm_zzc@sina.com>
Closes #5154 from zzcclp/SPARK-6483 and squashes the following commits:
5ac6e09 [zzcclp] Add a newline at the end of source file
cc6868e [zzcclp] Fix for fail on unit test.
0a8cdc3 [zzcclp] indention issue
b73836a [zzcclp] Access Seq[Expression] element by :: operator, and update the code gen script.
7763848 [zzcclp] rebase from master
Diffstat (limited to 'mllib/src')
0 files changed, 0 insertions, 0 deletions