GitHub user henryr opened a pull request:
https://github.com/apache/spark/pull/20254
[SPARK-23062][SQL] Improve EXCEPT documentation
## What changes were proposed in this pull request?
Make the default behavior of EXCEPT (i.e. EXCEPT DISTINCT) more
explicit in the documentation, and call out the change in behavior
from 1.x.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/henryr/spark spark-23062
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/20254.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 #20254
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commit 9fe57074b496ad95411c4ce5a43b0c43dd6246af
Author: Henry Robinson <henry@...>
Date: 2018-01-13T00:17:00Z
[SPARK-23062][SQL] Improve EXCEPT documentation
## What changes were proposed in this pull request?
Make the default behavior of EXCEPT (i.e. EXCEPT DISTINCT) more
explicit in the documentation, and call out the change in behavior
from 1.x.
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