GitHub user jodersky opened a pull request:
https://github.com/apache/spark/pull/15284
[SPARK-17368] [SQL] Add support for value class serialization and
deserialization
## What changes were proposed in this pull request?
Value classes were unsupported because catalyst data types were
obtained through reflection on erased types, which would resolve to a
value class' wrapped type and hence lead to unavailable methods during
code generation.
This patch simply removes the erasure step when getting data types for
catalyst.
## How was this patch tested?
Additional tests in `ExpressionEncoderSuite`.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/jodersky/spark value-classes
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/15284.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 #15284
----
commit a3dce9f5f9ced492fa6f20b93497856fd51fc757
Author: Jakob Odersky <[email protected]>
Date: 2016-09-28T21:19:26Z
Add support for value class serialization and deserialization
Value classes were unsupported because catalyst data types were
obtained through reflection on erased types, which would resolve to a
value class' wrapped type and hence lead to unavailable methods during
code generation.
This patch simply removes the erasure step when getting data types for
catalyst.
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