GitHub user setjet opened a pull request:
https://github.com/apache/spark/pull/18097
[Spark-20873][SQL] Improve the error message for unsupported Column Type
## What changes were proposed in this pull request?
Upon encountering an invalid columntype, the column type object is printed,
rather than the type.
This change improves this by outputting its name.
## How was this patch tested?
Added a simple unit test to verify the contents of the raised exception
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/setjet/spark spark-20873
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/18097.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 #18097
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commit 69369fb876cd32e07e00b889ba9af46a831d48ec
Author: setjet <[email protected]>
Date: 2017-05-24T20:10:35Z
added typename and corresponding unit test
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