GitHub user hvanhovell opened a pull request:
https://github.com/apache/spark/pull/12011
[SPARK-14086][SQL] Add DDL commands to ANTLR4 parser
#### What changes were proposed in this pull request?
This PR adds all the current Spark SQL DDL commands to the new ANTLR 4
based SQL parser.
I have found a few inconsistencies in the current commands:
- Function has an alias field. This is actually the class name of the
function.
- Partition specifications should contain nulls in some commands, and
contain `None`s in others.
- `AlterTableSkewedLocation`: Should defines which columns have skewed
values, and should allow us to define storage for each skewed combination of
values. We currently only allow one value per field.
- `AlterTableSetFileFormat`: Should only have one file format, it currently
supports both.
I have implemented all these comments like they were, and I propose to
improve them in follow-up PRs.
#### How was this patch tested?
The existing DDLCommandSuite.
cc @rxin @andrewor14 @yhuai
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/hvanhovell/spark SPARK-14086
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/12011.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 #12011
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commit f7c8eb5bca073d521d0f306e740cbc872cbc657e
Author: Herman van Hovell <[email protected]>
Date: 2016-03-28T19:57:20Z
Add DDL commands to SparkSqlParser.
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