GitHub user zsxwing opened a pull request:
https://github.com/apache/spark/pull/15934
[SPARK-18497][SS]Make ForeachSink support watermark
## What changes were proposed in this pull request?
The issue in ForeachSink is the new created DataSet still uses the old
QueryExecution. When `foreachPartition` is called, `QueryExecution.toString`
will be called and then fail because it doesn't know how to plan
EventTimeWatermark.
This PR just replaces the QueryExecution with IncrementalExecution to fix
the issue.
## How was this patch tested?
`test("foreach with watermark")`.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zsxwing/spark SPARK-18497
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/15934.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 #15934
commit 0f3e4af26054c4bf5877d671e9df5301ef48d3fd
Author: Shixiong Zhu
Date: 2016-11-18T22:07:10Z
Make ForeachSink support watermark
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