GitHub user cloud-fan opened a pull request:
https://github.com/apache/spark/pull/11816
[SPARK-14000][SQL] case class with a tuple field can't work in Dataset
## What changes were proposed in this pull request?
When we validate an encoder, we may call `dataType` on unresolved
expressions. This PR fix the validation so that we will resolve attributes
first.
## How was this patch tested?
a new test in `DatasetSuite`
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/cloud-fan/spark encoder
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/11816.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 #11816
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commit 9dc7a7e7ce582a63946abe27df0f2d6dcec296df
Author: Wenchen Fan <[email protected]>
Date: 2016-03-18T07:46:37Z
case class with tuple type field
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