GitHub user rxin opened a pull request:
https://github.com/apache/spark/pull/1144
[SPARK-2210] boolean cast on boolean value should be removed.
```
explain select cast(cast(key=0 as boolean) as boolean) aaa from src
```
should be
```
[Physical execution plan:]
[Project [(key#10:0 = 0) AS aaa#7]]
[ HiveTableScan [key#10], (MetastoreRelation default, src, None), None]
```
However, it is currently
```
[Physical execution plan:]
[Project [NOT((key#10=0) = 0) AS aaa#7]]
[ HiveTableScan [key#10], (MetastoreRelation default, src, None), None]
```
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/rxin/spark booleancast
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/1144.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 #1144
----
commit c4e543d9802641e4f7ddb2cc2ae08c05962a5b44
Author: Reynold Xin <r...@apache.org>
Date: 2014-06-20T05:35:23Z
[SPARK-2210] boolean cast on boolean value should be removed.
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