GitHub user davies opened a pull request:
https://github.com/apache/spark/pull/11619
test Window 1.6
This PR is used to test
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/davies/spark window_1.6
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/11619.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 #11619
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commit ef2f6d22df844da70911ad7bd6b5bd4d4834ed89
Author: Herman van Hovell <[email protected]>
Date: 2015-12-17T23:16:35Z
[SPARK-8641][SQL] Native Spark Window functions
This PR removes Hive windows functions from Spark and replaces them with
(native) Spark ones. The PR is on par with Hive in terms of features.
This has the following advantages:
* Better memory management.
* The ability to use spark UDAFs in Window functions.
cc rxin / yhuai
Author: Herman van Hovell <[email protected]>
Closes #9819 from hvanhovell/SPARK-8641-2.
commit 20d8659b7c03a8a873b4a868f719bbb68825ce14
Author: Davies Liu <[email protected]>
Date: 2016-01-07T07:21:52Z
[SPARK-12295] [SQL] external spilling for window functions
This PR manage the memory used by window functions (buffered rows), also
enable external spilling.
After this PR, we can run window functions on a partition with hundreds of
millions of rows with only 1G.
Author: Davies Liu <[email protected]>
Closes #10605 from davies/unsafe_window.
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