GitHub user jerryshao opened a pull request:
https://github.com/apache/spark/pull/21017
[SPARK-23748][SS] Fix SS continuous process doesn't support SubqueryAlias
issue
## What changes were proposed in this pull request?
Current SS continuous doesn't support processing on temp table or
`df.as("xxx")`, SS will throw an exception as LogicalPlan not supported,
details described in [here](https://issues.apache.org/jira/browse/SPARK-23748).
So here propose to add this support.
## How was this patch tested?
new UT.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/jerryshao/apache-spark SPARK-23748
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/21017.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 #21017
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commit 03ca4ec3136253d7087bcaa67bdc1401a7de90fc
Author: jerryshao <sshao@...>
Date: 2018-04-10T01:47:05Z
Fix SS continuous process doesn't support SubqueryAlias issue
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