GitHub user gatorsmile opened a pull request:
https://github.com/apache/spark/pull/14186
[SPARK-16530] [SQL] [TRIVIAL] Wrong Parser Keyword in ALTER TABLE CHANGE
COLUMN
#### What changes were proposed in this pull request?
Based on the [Hive SQL
syntax](https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL#LanguageManualDDL-ChangeColumnName/Type/Position/Comment),
the command to change column name/type/position/comment is `ALTER TABLE CHANGE
COLUMN`. However, in our .g4 file, it is `ALTER TABLE CHANGE COLUMNS`. Because
it is the last optional keyword, it does not take any effect. Thus, I put the
issue as a Trivial level.
cc @hvanhovell
#### How was this patch tested?
Existing test cases
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/gatorsmile/spark changeColumns
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/14186.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 #14186
----
commit 89a4eed6f7557bb7264edc067f1406f1904a21b1
Author: gatorsmile <gatorsm...@gmail.com>
Date: 2016-07-13T19:18:10Z
fix
----
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
