GitHub user viirya opened a pull request:
https://github.com/apache/spark/pull/14682
[SPARK-17104][SQL] LogicalRelation.newInstance should follow the semantics
of MultiInstanceRelation
## What changes were proposed in this pull request?
Currently `LogicalRelation.newInstance()` simply creates another
`LogicalRelation` object with the same parameters. However, the `newInstance()`
method inherited from `MultiInstanceRelation` should return a copy of unique
expression ids. Current `LogicalRelation.newInstance()` causes failure when
doing self-join.
## How was this patch tested?
Jenkins tests.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/viirya/spark-1 fix-localrelation
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/14682.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 #14682
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commit f9a8c763a8b45e467566a973b7894aaecb9248d4
Author: Liang-Chi Hsieh <sim...@tw.ibm.com>
Date: 2016-08-17T08:49:07Z
Fix LogicalRelation.newInstance.
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