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| author | Takuya UESHIN <ueshin@happy-camper.st> | 2014-06-11 17:58:35 -0700 |
|---|---|---|
| committer | Michael Armbrust <michael@databricks.com> | 2014-06-11 17:58:35 -0700 |
| commit | 9a2448daf984d5bb550dfe0d9e28cbb80ef5cb51 (patch) | |
| tree | e66fb94427356b1e1bcd3d53f74557da8bdd2218 /examples/src | |
| parent | d45e0c6b986b54129313fc4a44c741ab4b04462d (diff) | |
| download | spark-9a2448daf984d5bb550dfe0d9e28cbb80ef5cb51.tar.gz spark-9a2448daf984d5bb550dfe0d9e28cbb80ef5cb51.tar.bz2 spark-9a2448daf984d5bb550dfe0d9e28cbb80ef5cb51.zip | |
[SPARK-2052] [SQL] Add optimization for CaseConversionExpression's.
Add optimization for `CaseConversionExpression`'s.
Author: Takuya UESHIN <ueshin@happy-camper.st>
Closes #990 from ueshin/issues/SPARK-2052 and squashes the following commits:
2568666 [Takuya UESHIN] Move some rules back.
dde7ede [Takuya UESHIN] Add tests to check if ConstantFolding can handle null literals and remove the unneeded rules from NullPropagation.
c4eea67 [Takuya UESHIN] Fix toString methods.
23e2363 [Takuya UESHIN] Make CaseConversionExpressions foldable if the child is foldable.
0ff7568 [Takuya UESHIN] Add tests for collapsing case statements.
3977d80 [Takuya UESHIN] Add optimization for CaseConversionExpression's.
Diffstat (limited to 'examples/src')
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