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ASF GitHub Bot commented on FLINK-1776: --------------------------------------- Github user fhueske commented on the pull request: https://github.com/apache/flink/pull/532#issuecomment-89010020 Will rebase and merge this in about 24h unless somebody raises a flag. > APIs provide invalid Semantic Properties for Operators with SelectorFunction > keys > --------------------------------------------------------------------------------- > > Key: FLINK-1776 > URL: https://issues.apache.org/jira/browse/FLINK-1776 > Project: Flink > Issue Type: Bug > Components: Java API, Scala API > Affects Versions: 0.9 > Reporter: Fabian Hueske > Assignee: Fabian Hueske > Priority: Critical > Fix For: 0.9 > > > Semantic properties are defined by users and evaluated by the optimizer. > When semantic properties such as forwarded or read fields are bound to the > input type of a function. > In case of operators with selector function keys, a user function is wrapped > by a wrapping function that has a different input types than the original > user function. However, the user-defined semantic properties are verbatim > forwarded to the optimizer. > Since the properties refer to a specific type which is changed by the > wrapping function and the semantic properties are not adapted, the optimizer > uses wrong properties and might produce invalid plans -- This message was sent by Atlassian JIRA (v6.3.4#6332)