GitHub user gatorsmile opened a pull request:
https://github.com/apache/spark/pull/13926
[SPARK-16229] [SQL] Drop Empty Table After CREATE TABLE AS SELECT fails
#### What changes were proposed in this pull request?
In `CREATE TABLE AS SELECT`, if the `SELECT` query failed, the table should
not exist. For example,
```SQL
CREATE TABLE tab
STORED AS TEXTFILE
SELECT 1 AS a, (SELECT a FROM (SELECT 1 AS a UNION ALL SELECT 2 AS a) t) AS
b
```
The above query failed as expected but an empty table `t` is created.
This PR is to drop the created table when hitting any non-fatal exception.
#### How was this patch tested?
Added a test case to verify the behavior
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/gatorsmile/spark dropTableAfterException
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/13926.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 #13926
----
commit c0f08a518332deac260bc69c787cba06ddf9cf98
Author: gatorsmile <[email protected]>
Date: 2016-06-27T18:22:49Z
fix
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