GitHub user cloud-fan opened a pull request:
https://github.com/apache/spark/pull/9337
[SPARK-11379][SQL] ExpressionEncoder can't handle top level primitive type
correctly
For inner primitive type(e.g. inside `Product`), we use `schemaFor` to get
the catalyst type for it,
https://github.com/apache/spark/blob/master/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/ScalaReflection.scala#L403.
However, for top level primitive type, we use `dataTypeFor`, which is wrong.
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/9337.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 #9337
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commit 8b98d038ac2723deb4a261203bed01a614863d39
Author: Wenchen Fan <[email protected]>
Date: 2015-10-28T15:31:44Z
fix a bug of encoder
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