GitHub user juliuszsompolski opened a pull request:
https://github.com/apache/spark/pull/20152
[SPARK-22957] ApproxQuantile breaks if the number of rows exceeds MaxInt
## What changes were proposed in this pull request?
32bit Int was used for row rank.
That overflowed in a dataframe with more than 2B rows.
## How was this patch tested?
Added test, but ignored, as it takes 4 minutes.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/juliuszsompolski/apache-spark SPARK-22957
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/20152.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 #20152
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commit 324218b6065f1ad57479d5ee582694826c1309f9
Author: Juliusz Sompolski <julek@...>
Date: 2018-01-04T13:22:49Z
SPARK-22957
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