[jira] [Commented] (FLINK-4047) Fix documentation about determinism of KeySelectors

["Neelesh Srinivas Salian (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-4047?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15391342#comment-15391342 ] 

Neelesh Srinivas Salian commented on FLINK-4047:
------------------------------------------------

Hi [~fhueske], could I work on this JIRA?

> 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
>              Labels: starter
>             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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