Github user twalthr commented on a diff in the pull request:
https://github.com/apache/flink/pull/729#discussion_r31597259
--- Diff:
flink-java/src/main/java/org/apache/flink/api/java/operators/SingleInputUdfOperator.java
---
@@ -54,8 +54,11 @@
private Map<String, DataSet<?>> broadcastVariables;
+ // NOTE: only set this variable via setSemanticProperties()
--- End diff --
Manual annotations should always trump optimizer annotations. The analyzer
can not determine all semantic properties. E.g. when using KeySelectors. The
user should still have the possibility to override semantic properties to add
more properties.
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