GitHub user davies opened a pull request:
https://github.com/apache/spark/pull/10353
[SPARK-12395] [SQL] fix resulting columns of outer join
For API DataFrame.join(right, usingColumns, joinType), if the joinType is
right_outer or full_outer, the resulting join columns could be wrong (will be
null).
The order of columns had been changed to match that with MySQL and
PostgreSQL [1].
This PR also fix the nullability of output for outer join.
[1] http://www.postgresql.org/docs/9.2/static/queries-table-expressions.html
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/davies/spark fix_join
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/10353.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 #10353
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commit f5ab9cbd6af264a03c00ca93d4d58c94a46bf468
Author: Davies Liu <[email protected]>
Date: 2015-12-17T08:11:38Z
fix resulting columns of outer join
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