GitHub user chenghao-intel opened a pull request:
https://github.com/apache/spark/pull/1015
[SPARK-2076][SQL] Pushdown the join filter & predication for outer join
As the rule described in
https://cwiki.apache.org/confluence/display/Hive/OuterJoinBehavior, we can
optimize the SQL Join by pushing down the Join predicate and Where predicate.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/chenghao-intel/spark join_predicate_push_down
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/1015.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 #1015
----
commit dd9e22ba32b885683edf21ce98cfaaa9d36033ff
Author: Cheng Hao <[email protected]>
Date: 2014-06-09T05:09:10Z
Pushdown the join filter & predicate for outer join
----
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
