GitHub user marmbrus opened a pull request:
https://github.com/apache/spark/pull/9870
[SPARK-11889] [SQL] Fix type inference for GroupedDataset.agg in REPL
In this PR I delete a method that breaks type inference for aggregators
(only in the REPL)
The error when this method is present is:
```
<console>:38: error: missing parameter type for expanded function ((x$2) =>
x$2._2)
ds.groupBy(_._1).agg(sum(_._2), sum(_._3)).collect()
```
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/marmbrus/spark dataset-repl-agg
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/9870.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 #9870
----
commit d7367da4ca031548d843aed3ef9f14be9f46aecf
Author: Michael Armbrust <[email protected]>
Date: 2015-11-20T21:15:12Z
[SPARK-11889] [SQL] Fix type inference for GroupedDataset.agg in REPL
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