GitHub user gatorsmile opened a pull request:
https://github.com/apache/spark/pull/16055
[SPARK-17897] [SQL] Attribute is not NullIntolerant
### What changes were proposed in this pull request?
`Attribute` is not `NullIntolerant`. This PR is to fix it.
Without the fix, the following test case will return empty.
```Scala
val data = Seq[java.lang.Integer](1, null).toDF("key")
data.filter("not key is not null").show()
```
### How was this patch tested?
Added a test
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/gatorsmile/spark isNotNull
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/16055.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 #16055
commit 33c10a0994c9802df901f211e1f28c52e34df27f
Author: gatorsmile
Date: 2016-11-29T08:00:55Z
fix.
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