GitHub user cloud-fan opened a pull request:
https://github.com/apache/spark/pull/12359
[SPARK-13363][SQL] support Aggregator in DataFrame
## What changes were proposed in this pull request?
set the input encoder for `TypedColumn` in `RelationalGroupedDataset.agg`.
## How was this patch tested?
new tests in `DatasetAggregatorSuite`
close https://github.com/apache/spark/pull/11269
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/cloud-fan/spark agg
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/12359.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 #12359
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commit f4ec1ef138dba21640485d1d8acd1114156671ab
Author: Wenchen Fan <[email protected]>
Date: 2016-04-13T12:47:07Z
support Aggregator in DataFrame
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