GitHub user ueshin opened a pull request:
https://github.com/apache/spark/pull/1266
[SPARK-2327] [SQL] Fix nullabilities of Join/Generate/Aggregate.
Fix nullabilities of `Join`/`Generate`/`Aggregate` because:
- Output attributes of opposite side of `OuterJoin` should be nullable.
- Output attributes of generater side of `Generate` should be nullable if
`join` is `true` and `outer` is `true`.
- `AttributeReference` of `computedAggregates` of `Aggregate` should be the
same as `aggregateExpression`'s.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ueshin/apache-spark issues/SPARK-2327
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/1266.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 #1266
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commit f20f196e33e4bd6ab4adeb9bb4afea9b9256d902
Author: Takuya UESHIN <ues...@happy-camper.st>
Date: 2014-06-30T08:43:37Z
Fix Join output nullabilities.
commit 09532ec6a67ba38b63deb6d0ea4607d7e8a07080
Author: Takuya UESHIN <ues...@happy-camper.st>
Date: 2014-06-30T08:45:10Z
Fix Generate output nullabilities.
commit 0e31e377b4a8ba8c4bf698c2afea6a604a6c25bd
Author: Takuya UESHIN <ues...@happy-camper.st>
Date: 2014-06-30T08:48:52Z
Fix Aggregate resultAttribute nullabilities.
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