GitHub user tillrohrmann opened a pull request:
https://github.com/apache/flink/pull/1388
[FLINK-3052] [optimizer] Fix instantiation of bulk iteration candidates
When a candidate for a bulk iteration is instantiated, then the optimizer
creates candidates
for the step function. It is then checked that there exists a candidate
solution for the step
function whose properties met the properties of the input to the bulk
iteration. Sometimes
it is necessary to add a no-op plan node to the end of the step function to
generate the
correct properties. These new candidates have to be added to the final set
of the accepted
candidates.
This commit adds that these new candidates are properly added to the set of
accepted candidates.
Fix test and add new iteration tests
Add predecessor operator and dynamic path information to no op operator in
bulk iterations
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/tillrohrmann/flink fixBulkIteration
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/1388.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 #1388
----
commit 27e2085da7423bbb114ece8b9a0f19339c41a696
Author: Till Rohrmann <[email protected]>
Date: 2015-11-19T13:24:15Z
[FLINK-3052] [optimizer] Fix instantiation of bulk iteration candidates
When a candidate for a bulk iteration is instantiated, then the optimizer
creates candidates
for the step function. It is then checked that there exists a candidate
solution for the step
function whose properties met the properties of the input to the bulk
iteration. Sometimes
it is necessary to add a no-op plan node to the end of the step function to
generate the
correct properties. These new candidates have to be added to the final set
of the accepted
candidates.
This commit adds that these new candidates are properly added to the set of
accepted candidates.
Fix test and add new iteration tests
Add predecessor operator and dynamic path information to no op operator in
bulk iterations
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