GitHub user stanzhai opened a pull request:
https://github.com/apache/spark/pull/16617
[SPARK-19261][SQL]Support `ALTER TABLE table_name ADD COLUMNS(..)`
statement
## What changes were proposed in this pull request?
We should support `ALTER TABLE table_name ADD COLUMNS(..)` statement, which
already be supported in version < 2.x.
This is very useful for those who want to upgrade there Spark version to
2.x.
## How was this patch tested?
Add some test cases in `DDLCommandSuite`, and test with Hive in my
environment.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/stanzhai/spark master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/16617.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 #16617
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commit 69729ef083f152eb91a80e1ea7f1481234766c7c
Author: zhaishidan <zhaishi...@haizhi.com>
Date: 2015-07-14T07:47:36Z
fix document error about spark.kryoserializer.buffer.max.mb
commit f7f5c77194492c41eaa63efc1516e1cb73603c3f
Author: zhaishidan <zhaishi...@haizhi.com>
Date: 2016-03-17T10:00:02Z
Merge branch 'master' of https://github.com/apache/spark
commit e0b6a807a6374553a81a8a07d37fdd643e9fcbc0
Author: StanZhai <stan@stanzhaidemac-mini.local>
Date: 2016-10-08T15:22:46Z
Merge branch 'master' of https://github.com/apache/spark
commit f50377b9e4d5c3ae1a7b232fffe96015319a32af
Author: Stan Zhai <zhaishi...@haizhi.com>
Date: 2017-01-16T07:45:34Z
Merge branch 'master' of https://github.com/apache/spark into stan-master
commit 2e1e53a2bd28decef6dbef3af16b10512b26a664
Author: Stan Zhai <zhaishi...@haizhi.com>
Date: 2017-01-16T08:43:46Z
support `alter table add columns`
commit e55350a1876e4b46584476795cfce6184248d66d
Author: Stan Zhai <zhaishi...@haizhi.com>
Date: 2017-01-17T10:16:22Z
Merge branch 'master' of https://github.com/apache/spark into stan-master
commit ba7373256a9deeefcb22a7facf006ec85403afb9
Author: Stan Zhai <zhaishi...@haizhi.com>
Date: 2017-01-17T12:09:42Z
update test
commit 3cafe2c0d54b0bb2a9d9ff8814e5183571deff26
Author: Stan Zhai <zhaishi...@haizhi.com>
Date: 2017-01-17T13:09:58Z
revert pom.xml
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