GitHub user viirya opened a pull request:
https://github.com/apache/spark/pull/11466
[SPARK-13616][SQL] Let SQLBuilder convert logical plan without a project on
top of it
JIRA: https://issues.apache.org/jira/browse/SPARK-13616
## What changes were proposed in this pull request?
It is possibly that a logical plan has been removed `Project` from the top
of it. Or the plan doesn't has a top `Project` from the beginning because it is
not necessary. Currently the `SQLBuilder` can't convert such plans back to SQL.
This change is to add this feature.
## How was this patch tested?
A test is added to `LogicalPlanToSQLSuite`.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/viirya/spark-1 sqlbuilder-notopselect
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/11466.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 #11466
----
commit 3b9a3d0b950b7c99b412821e072478b4a4676fc8
Author: Liang-Chi Hsieh <[email protected]>
Date: 2016-03-02T09:10:22Z
Let SQLBuilder convert logical plan without a project on top of it.
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