GitHub user joseph-torres opened a pull request:
https://github.com/apache/spark/pull/18840
[SPARK-21565] Propagate metadata in attribute replacement.
## What changes were proposed in this pull request?
Propagate metadata in attribute replacement during streaming execution.
This is necessary for EventTimeWatermarks consuming replaced attributes.
## How was this patch tested?
new unit test, which was verified to fail before the fix
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/joseph-torres/spark SPARK-21565
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/18840.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 #18840
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commit e54d81200569c2260f0995b2f91aa9829dc10ad7
Author: Jose Torres <joseph-tor...@databricks.com>
Date: 2017-08-04T03:52:57Z
Propagate metadata in attribute replacement.
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