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https://issues.apache.org/jira/browse/FLINK-7142?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17328747#comment-17328747
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Flink Jira Bot commented on FLINK-7142:
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This major issue is unassigned and itself and all of its Sub-Tasks have not
been updated for 30 days. So, it has been labeled "stale-major". If this ticket
is indeed "major", please either assign yourself or give an update. Afterwards,
please remove the label. In 7 days the issue will be deprioritized.
> Scala DataSet API ignores ResultTypeQueryable interface
> -------------------------------------------------------
>
> Key: FLINK-7142
> URL: https://issues.apache.org/jira/browse/FLINK-7142
> Project: Flink
> Issue Type: Bug
> Components: API / DataSet, API / Scala
> Affects Versions: 1.3.1, 1.4.0
> Reporter: Fabian Hueske
> Priority: Major
> Labels: stale-major
>
> The {{ResultTypeQueryable}} is used to specify the return type of
> user-defined functions. The Scala DataSet API ignores this interface. The
> only way to override the inferred type information is to use implicit values.
> However, the {{ResultTypeQueryable}} interface has the nice property that the
> return type is defined in the actual function, whereas implicit types are
> defined in the program, i.e., outside of the function.
> IMO, the Scala DataSet API should also support the {{ResultTypeQueryable}}
> interface.
> What do you think [~aljoscha], [~till.rohrmann]?
> Was it a conscious decision to only support implicit type definitions?
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