GitHub user davies opened a pull request:
https://github.com/apache/spark/pull/4359
[SQL] support select/filter by SQL expression
```
df.select('a + 1', 'abs(age)')
df.filter('age > 3')
df[ df.age > 3 ]
df[ ['age', 'name'] ]
```
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/davies/spark select_expr
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/4359.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 #4359
----
commit d99856b4f58a61035ae1dba74b9780c4ec47a09b
Author: Davies Liu <[email protected]>
Date: 2015-02-04T08:23:15Z
support select/filter by SQL expression
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