GitHub user wzhfy opened a pull request:
https://github.com/apache/spark/pull/19213
[SPARK-17642] [SQL] [FOLLOWUP] improve comments
## What changes were proposed in this pull request?
Improve comments for some RunnableCommands for table.
## How was this patch tested?
Only comments. Not related to tests.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/wzhfy/spark useless_comment
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/19213.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 #19213
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commit 0afc9f704100b7dda94de7eb50569248a9444b55
Author: Zhenhua Wang <wangzhen...@huawei.com>
Date: 2017-09-13T01:25:52Z
improve comments
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