GitHub user viirya opened a pull request:
https://github.com/apache/spark/pull/5369
[SPARK-6715][SQL] Eliminate duplicate filters from pushdown predicates
Now in `DataSourceStrategy`, the pushdown predicates are duplicate of
original `Filter` conditions. Thus, some predicates are performed both by data
source relation and `Filter` plan. I think it is a duplicate loading. Once the
predicates are pushed down and performed by a data source relation, it
can be eliminated from outside `Filter` plan's condition.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/viirya/spark-1 de_dup_filter
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/5369.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 #5369
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commit 86162521d71462559cbd5886de491b57020b1518
Author: Liang-Chi Hsieh <[email protected]>
Date: 2015-04-05T13:45:22Z
Eliminate duplicate filters from pushdown predicates.
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