Github user StephanEwen commented on a diff in the pull request:
https://github.com/apache/flink/pull/311#discussion_r23135475
--- Diff:
flink-compiler/src/main/java/org/apache/flink/compiler/dag/AbstractPartialSolutionNode.java
---
@@ -86,8 +87,8 @@ public void
computeInterestingPropertiesForInputs(CostEstimator estimator) {
}
@Override
- public boolean isFieldConstant(int input, int fieldNumber) {
- return false;
+ public SemanticProperties getSemanticProperties() {
+ return null;
--- End diff --
Can we improve null pointer safety by returning a special constant
SemanticProperties object that marks all fields as changed?
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