Github user aljoscha commented on the pull request:
https://github.com/apache/flink/commit/da53953e5366185567515d209fcc85d4006f7e8a#commitcomment-19948322
In
flink-core/src/main/java/org/apache/flink/api/common/state/FoldingStateDescriptor.java:
In
flink-core/src/main/java/org/apache/flink/api/common/state/FoldingStateDescriptor.java
on line 40:
I think this won't work because now we don't have all the special
serialisation logic that `SimpleStateDescriptor` has. What you could do is
override `getDefaultValue()` and return `null` there. Then, in
`getInitialValue()` you return the default value and you don't need the extra
field.
What do you think?
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