GitHub user chenghao-intel opened a pull request:
https://github.com/apache/spark/pull/4619
[SQL] [Minor] Update the SpecificMutableRow.copy
When profiling the Join / Aggregate queries, I noticed lots of
`MutableValue` objects created via VisualVM, as the `SpecificMutableRow` are
mostly used in data source implementation, but the `copy` method could be
called multiple times in upper logic, duplicated instances created is not
necessary.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/chenghao-intel/spark specific_mutable_row
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/4619.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #4619
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commit 9300d2375ea10143448a6c78600ddc98aedf98e5
Author: Cheng Hao <[email protected]>
Date: 2015-02-16T05:28:43Z
update the SpecificMutableRow.copy
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