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[SPARK-9298][SQL] Add pearson correlation aggregation function #8587

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viirya wants to merge 14 commits into from
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[SPARK-9298][SQL] Add pearson correlation aggregation function #8587

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cb34a95
Add corr aggregate function.
viirya Sep 3, 2015
0dd6320
Merge remote-tracking branch 'upstream/master' into corr_aggregation
viirya Sep 6, 2015
1505cd2
Merge remote-tracking branch 'upstream/master' into corr_aggregation
viirya Oct 21, 2015
d3e4414
Fix merging error.
viirya Oct 22, 2015
d10afbe
Don't modify WindowSpec.
viirya Oct 22, 2015
cc1657b
Fix scala style.
viirya Oct 22, 2015
e1fb438
Merge remote-tracking branch 'upstream/master' into corr_aggregation
viirya Oct 27, 2015
02562f3
Add document. Return NaN when count is zero.
viirya Oct 27, 2015
5fbcf91
For comments.
viirya Oct 29, 2015
2f7b864
Merge remote-tracking branch 'upstream/master' into corr_aggregation
viirya Oct 29, 2015
3b731e2
Make Corr extends AggregateExpression1.
viirya Oct 29, 2015
4f8c381
Fix null case.
viirya Oct 30, 2015
7dcf689
Fix udaf_corr test.
viirya Oct 30, 2015
2de76b4
Due to numerical errors, put udaf_corr in HiveCompatibilitySuite to b…
viirya Oct 30, 2015
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Merge remote-tracking branch 'upstream/master' into corr_aggregation
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@viirya
viirya committed Oct 21, 2015
commit 1505cd23a8e0cbd1b26da499f53fd6416ac96ca8
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