GitHub user cloud-fan opened a pull request:
https://github.com/apache/spark/pull/11410
[SPARK-13456][SQL] fix creating encoders for case classes defined in Spark
shell
## What changes were proposed in this pull request?
case classes defined in REPL are wrapped by line classes, and we have a
trick for scala 2.10 REPL to automatically register the wrapper classes to
`OuterScope` so that we can use when create encoders.
However, this trick doesn't work right after we upgrade to scala 2.11, and
unfortunately the tests are only in scala 2.10, which makes this bug hidden
until now.
This PR moves the encoder tests to scala 2.11 `ReplSuite`, and fixes this
bug by another approach(the previous trick can't port to scala 2.11 REPL): make
`OuterScope` smarter that can detect classes defined in REPL and load line
wrapper classes automatically.
## How was this patch tested?
the migrated encoder tests in `ReplSuite`
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/cloud-fan/spark repl
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/11410.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 #11410
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commit a2c461746b10fab4acac5e206a759a9bebbc7c29
Author: Wenchen Fan <[email protected]>
Date: 2016-02-26T13:09:34Z
fix creating encoders for case classes defined in Spark shell
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