GitHub user cloud-fan opened a pull request:
https://github.com/apache/spark/pull/13846
[SPARK-16134][SQL] optimizer rules for typed filter
## What changes were proposed in this pull request?
This PR adds 3 optimizer rules for typed filter:
1. push typed filter down through `SerializeFromObject` and eliminate the
deserialization in filter condition.
2. pull typed filter up through `SerializeFromObject` and eliminate the
deserialization in filter condition.
3. combine adjacent typed filters and share the deserialized object among
all the condition expressions.
This PR also adds `TypedFilter` logical plan, to separate it from normal
filter, so that the concept is more clear and it's easier to write optimizer
rules.
## How was this patch tested?
`TypedFilterOptimizationSuite`
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/cloud-fan/spark filter
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/13846.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 #13846
----
commit c1dac587b6628acbbca0852d3d77870897f60884
Author: Wenchen Fan <[email protected]>
Date: 2016-06-22T14:15:54Z
optimizer rules for typed filter
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