GitHub user zsxwing opened a pull request:
https://github.com/apache/spark/pull/12049
[SPARK-14257][SQL]Allow multiple continuous queries to be started from the
same DataFrame
## What changes were proposed in this pull request?
Make StreamingRelation store the closure to create the source in
StreamExecution so that we can start multiple continuous queries from the same
DataFrame.
## How was this patch tested?
`test("DataFrame reuse")`
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zsxwing/spark df-reuse
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/12049.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 #12049
----
commit 50c39b83e9d0f0a3ebe8cf5cb2675662b320a6e9
Author: Shixiong Zhu <[email protected]>
Date: 2016-03-29T00:09:28Z
Allow multiple continuous queries to be started from the same DataFrame
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