GitHub user godfreyhe opened a pull request:
https://github.com/apache/flink/pull/3101
[FLINK-5406] [table] add normalization phase for predicate logical plan
rewriting
Normalization phase is for predicate logical plan rewriting and is
independent of cost module. The rules in normalization phase do not need to
repeatedly applied to different logical plan which is different to volcano
optimization phase. And the benefit of normalization phase is to reduce the
running time of volcano planner.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/godfreyhe/flink master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/3101.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 #3101
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commit c9f11e7c38f921a403b56a5c124974eb66bddcac
Author: godfreyhe <[email protected]>
Date: 2017-01-12T10:42:49Z
add normalization phase for predicate logical plan rewriting
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