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https://issues.apache.org/jira/browse/FLINK-7014?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16064983#comment-16064983
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ASF GitHub Bot commented on FLINK-7014:
---------------------------------------
GitHub user Xpray opened a pull request:
https://github.com/apache/flink/pull/4200
[FLINK-7014] Expose isDeterministic interface to ScalarFunction and T…
…ableFunction
Thanks for contributing to Apache Flink. Before you open your pull request,
please take the following check list into consideration.
If your changes take all of the items into account, feel free to open your
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title text")
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- [ ] Documentation
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You can merge this pull request into a Git repository by running:
$ git pull https://github.com/Xpray/flink FLINK-7014
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/4200.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #4200
----
commit d60574380414c1862022bb25b12005d907b6d931
Author: Xpray <[email protected]>
Date: 2017-06-27T14:10:06Z
[FLINK-7014] Expose isDeterministic interface to ScalarFunction and
TableFunction
----
> Expose isDeterministic interface to ScalarFunction and TableFunction
> --------------------------------------------------------------------
>
> Key: FLINK-7014
> URL: https://issues.apache.org/jira/browse/FLINK-7014
> Project: Flink
> Issue Type: Improvement
> Components: Table API & SQL
> Reporter: Ruidong Li
>
> Currently, the `isDeterministic` method of implementations of `SqlFuntion`
> are always returning true, which cause inappropriate optimization in Calcite,
> such as taking user's stateful UDF as a pure functional procedure.
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