GitHub user sameeragarwal opened a pull request:
https://github.com/apache/spark/pull/12523
[SPARK-14748][SQL] BoundReference should not set ExprCode.code to empty
string
## What changes were proposed in this pull request?
While generating code for `BoundReference`, for variables that have already
been evaluated we should not set `ExprCode.code` to empty string and should
just return the original `ExprCode`.
## How was this patch tested?
Existing test should catch any issues. In particular, we should fix the
generated code for any operator should it now start failing.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/sameeragarwal/spark exprcode
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/12523.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 #12523
----
commit cb2889708f85d839e687ff6562409f34fd00baef
Author: Sameer Agarwal <[email protected]>
Date: 2016-04-20T08:03:56Z
BoundReference should not set ExprCode.code to empty string
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