GitHub user liancheng opened a pull request:
https://github.com/apache/spark/pull/1294
Don't throw TreeNodeException in `execution.ExplainCommand`
This is a fix for the problem revealed by PR #1265.
Currently `HiveComparisonSuite` ignores output of `ExplainCommand` since
Catalyst query plan is quite different from Hive query plan. But exceptions
throw from `CheckResolution` still breaks test cases. This PR catches any
`TreeNodeException` and reports it as part of the query explanation.
After merging this PR, PR #1265 can also be merged safely.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/liancheng/spark safe-explain
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/1294.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 #1294
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commit 4318911f878987eae062e19f97f63a6fd52fa35f
Author: Cheng Lian <lian.cs....@gmail.com>
Date: 2014-07-03T20:42:54Z
Don't throw TreeNodeException in `execution.ExplainCommand`
This is a fix for the problem revealed by [PR
#1265](https://github.com/apache/spark/pull/1265)
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