GitHub user lianhuiwang opened a pull request:
https://github.com/apache/spark/pull/13706
[SPARK-15988] [SQL] Implement DDL commands: CREATE/DROP TEMPORARY MACRO
## What changes were proposed in this pull request?
In https://issues.apache.org/jira/browse/HIVE-2655, Hive have implemented
CREATE/DROP TEMPORARY MACRO. So This PR adds the support of native DDL commands
to create and drop temporary macro for SparkSQL.
temporary macro can be considered as a special temporary function that has
a FunctionBuilder that transform macro function into expression that can be
directly calculated.
## How was this patch tested?
add unit tests
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/lianhuiwang/spark macro
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/13706.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 #13706
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commit f2433c2b6769bb7fcaf40b6e74a1eac3589aae82
Author: Lianhui Wang <[email protected]>
Date: 2016-06-16T15:08:14Z
init commit
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