GitHub user davies opened a pull request:
https://github.com/apache/spark/pull/11403
[SPARK-13523] [SQL] WIP: reuse exchanges in a query
## What changes were proposed in this pull request?
(Please fill in changes proposed in this fix)
## How was this patch tested?
(Please explain how this patch was tested. E.g. unit tests, integration
tests, manual tests)
(If this patch involves UI changes, please attach a screenshot; otherwise,
remove this)
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/davies/spark dedup
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/11403.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 #11403
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commit 0830cc73012fa0de04a82428942a0266c7b6e385
Author: Davies Liu <[email protected]>
Date: 2016-02-26T21:36:31Z
WIP: reuse exchanges in a query
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