GitHub user viirya opened a pull request:
https://github.com/apache/spark/pull/18761
[SPARK-21555][SQL] GROUP BY should work with expressions with Nvl
## What changes were proposed in this pull request?
This patch overrides `canonicalized` of `RuntimeReplaceable` and makes the
failed query work.
## How was this patch tested?
Added test.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/viirya/spark-1 SPARK-21555
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/18761.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 #18761
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commit d0d5804eb37707f6939882df7b4bba635b5b65ac
Author: Liang-Chi Hsieh <[email protected]>
Date: 2017-07-28T14:29:58Z
GROUP BY should work with expressions with Nvl.
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