GitHub user AlexanderShoshin opened a pull request:
https://github.com/apache/flink/pull/3009
[FLINK-5255] Improve single row check in DataSetSingleRowJoinRule
DataSetSingleRowJoinRule now supports not only `LogicalAggregate` as single
row input, but also `LogicalCalc`, `LogicalProject` and `LogicalFilter`
followed by `LogicalAggregate`.
If `LogicalFilter` returns empty set `DataSetSingleRowJoin` will also
return empty set.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/AlexanderShoshin/flink FLINK-5255
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/3009.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 #3009
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commit f822d7c0320860a632ff6879f16ffec2c9f14350
Author: Alexander Shoshin <[email protected]>
Date: 2016-12-14T10:59:08Z
added tests for LogicalCalc support in DataSetSingleRowJoinRule
commit d954455c86532c4362c88d578f26e8bbe8ffb060
Author: Alexander Shoshin <[email protected]>
Date: 2016-12-14T11:04:49Z
[FLINK-5255] Enable single row LogicalCalc as input in
DataSetSingleRowJoinRule
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