GitHub user viirya opened a pull request:
https://github.com/apache/spark/pull/10009
[SPARK-12018][SQL] Refactor common subexpression elimination code
JIRA: https://issues.apache.org/jira/browse/SPARK-12018
The code of common subexpression elimination can be factored and
simplified. Some unnecessary variables can be removed.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/viirya/spark-1 refactor-subexpr-eliminate
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/10009.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 #10009
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commit 4876ce082b8d9a387b041f1a7e8d9060ecb4a777
Author: Liang-Chi Hsieh <[email protected]>
Date: 2015-11-26T22:39:14Z
Refactor common subexpression elimination.
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