GitHub user joseph-torres reopened a pull request:
https://github.com/apache/spark/pull/18790
[SPARK-21587][SS] Added pushdown through watermarks.
## What changes were proposed in this pull request?
* Filter predicates can be pushed through EventTimeWatermark if they're
deterministic and do not reference the watermarked attribute.
* Projects can be pushed through EventTimeWatermark if they include the
watermarked attribute.
* Limits can be pushed through EventTimeWatermark.
## How was this patch tested?
unit tests
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/joseph-torres/spark SPARK-21587
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/18790.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 #18790
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commit 9cc8da5dbc5be9b7b663e002097214e3c0720801
Author: Jose Torres <joseph-tor...@databricks.com>
Date: 2017-07-31T22:58:03Z
Added pushdown below watermarks.
commit 154d34820be73f7d20bf1119fb385940d0ce6455
Author: Jose Torres <joseph-tor...@databricks.com>
Date: 2017-08-01T16:47:32Z
Push Project, Limit, and Filter through watermark when appropriate.
commit 84575b60609a3efc9824eba96541011a99313a63
Author: Jose Torres <joseph-tor...@databricks.com>
Date: 2017-08-07T20:50:29Z
Remove pushdown limit through watermark.
commit 4cae8973f52078afae2a9d92d59c91edaab0ba88
Author: Jose Torres <joseph-tor...@databricks.com>
Date: 2017-08-09T01:56:46Z
remove leaked import
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