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| author | Eyal Farago <eyal@nrgene.com> | 2017-02-07 10:54:55 +0100 |
|---|---|---|
| committer | Herman van Hovell <hvanhovell@databricks.com> | 2017-02-07 10:54:55 +0100 |
| commit | a97edc2cf43bba5f94b213c824131f1c2dccecd6 (patch) | |
| tree | fc2aae401ac727c95bea24179b78b7d6e0260564 /examples | |
| parent | d9043092caf71d5fa6be18ae8c51a0158bc2218e (diff) | |
| download | spark-a97edc2cf43bba5f94b213c824131f1c2dccecd6.tar.gz spark-a97edc2cf43bba5f94b213c824131f1c2dccecd6.tar.bz2 spark-a97edc2cf43bba5f94b213c824131f1c2dccecd6.zip | |
[SPARK-18601][SQL] Simplify Create/Get complex expression pairs in optimizer
## What changes were proposed in this pull request?
It often happens that a complex object (struct/map/array) is created only to get elements from it in an subsequent expression. We can add an optimizer rule for this.
## How was this patch tested?
unit-tests
Please review http://spark.apache.org/contributing.html before opening a pull request.
Author: Eyal Farago <eyal@nrgene.com>
Author: eyal farago <eyal.farago@gmail.com>
Closes #16043 from eyalfa/SPARK-18601.
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