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| author | Herman van Hovell <hvanhovell@questtec.nl> | 2015-07-31 12:07:18 -0700 |
|---|---|---|
| committer | Yin Huai <yhuai@databricks.com> | 2015-07-31 12:08:25 -0700 |
| commit | 39ab199a3f735b7658ab3331d3e2fb03441aec13 (patch) | |
| tree | ff72a5998e11b325e7e447535f60fd9774547819 /dev/run-tests.py | |
| parent | 0a1d2ca42c8b31d6b0e70163795f0185d4622f87 (diff) | |
| download | spark-39ab199a3f735b7658ab3331d3e2fb03441aec13.tar.gz spark-39ab199a3f735b7658ab3331d3e2fb03441aec13.tar.bz2 spark-39ab199a3f735b7658ab3331d3e2fb03441aec13.zip | |
[SPARK-8640] [SQL] Enable Processing of Multiple Window Frames in a Single Window Operator
This PR enables the processing of multiple window frames in a single window operator. This should improve the performance of processing multiple window expressions wich share partition by/order by clauses, because it will be more efficient with respect to memory use and group processing.
Author: Herman van Hovell <hvanhovell@questtec.nl>
Closes #7515 from hvanhovell/SPARK-8640 and squashes the following commits:
f0e1c21 [Herman van Hovell] Changed Window Logical/Physical plans to use partition by/order by specs directly instead of using WindowSpec.
e1711c2 [Herman van Hovell] Enabled the processing of multiple window frames in a single Window operator.
Diffstat (limited to 'dev/run-tests.py')
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