Fabian Hueske created FLINK-4047:
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Summary: Fix documentation about determinism of KeySelectors
Key: FLINK-4047
URL: https://issues.apache.org/jira/browse/FLINK-4047
Project: Flink
Issue Type: Bug
Components: Documentation
Affects Versions: 1.1.0, 1.0.3
Reporter: Fabian Hueske
Fix For: 1.1.0, 1.0.3
KeySelectors must return deterministic keys, i.e., if invoked multiple times on
the same object, the returned key must be the same.
The documentation about this aspect is broken ("The key can be of any type and
be derived from arbitrary computations.").
We need to fix the JavaDocs of the {{KeySelector}} interface and the web
documentation
(https://ci.apache.org/projects/flink/flink-docs-master/apis/common/index.html#specifying-keys).
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