Stephan Ewen created FLINK-1290:
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Summary: Optimizer prunes all candidates when unable to reuse sort
properties
Key: FLINK-1290
URL: https://issues.apache.org/jira/browse/FLINK-1290
Project: Flink
Issue Type: Bug
Components: Optimizer
Affects Versions: 0.8-incubating
Reporter: Stephan Ewen
Assignee: Stephan Ewen
Fix For: 0.8-incubating
Programs fail with an exception that no plan could be created.
The bug can be reproduced by the following code:
{code}
val data : DataSet[(Long, Long)] = ...
data.distinct(0, 1).groupBy(0).reduceGroup(...)
{code}
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