GitHub user felixcheung opened a pull request:
https://github.com/apache/spark/pull/16510
[SPARK-19130][SPARKR] Support setting literal value as column implicitly
## What changes were proposed in this pull request?
```
df$foo <- 1
```
instead of
```
df$foo <- lit(1)
```
## How was this patch tested?
unit tests
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/felixcheung/spark rlitcol
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/16510.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 #16510
----
commit f90a8414bfc71f69b5785e689e719b6d45c45024
Author: Felix Cheung <[email protected]>
Date: 2017-01-09T04:22:15Z
setting literal value
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