GitHub user rxin opened a pull request:
https://github.com/apache/spark/pull/16140
[SPARK-18714][SQL] Add a simple time function to SparkSession
## What changes were proposed in this pull request?
Many Spark developers often want to test the runtime of some function in
interactive debugging and testing. This patch adds a simple time function to
SparkSession:
```
scala> spark.time { spark.range(1000).count() }
Time taken: 77 ms
res1: Long = 1000
```
## How was this patch tested?
I tested this interactively in spark-shell.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/rxin/spark SPARK-18714
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/16140.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 #16140
----
commit 76d2f5319e5ec65bdbeb3ba0467b60f3e2733f76
Author: Reynold Xin <[email protected]>
Date: 2016-12-05T06:10:51Z
[SPARK-18714][SQL] Add a simple time function to SparkSession
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