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https://issues.apache.org/jira/browse/FLINK-15487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17025887#comment-17025887
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Timo Walther commented on FLINK-15487:
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Fixed in 1.11:
[FLINK-15487][table] Allow registering FLIP-65 functions in TableEnvironment
fe284c8d95e0b0cd50789cfb1ee7529b4605a5f9
> Expose the new type inference for scalar functions
> --------------------------------------------------
>
> Key: FLINK-15487
> URL: https://issues.apache.org/jira/browse/FLINK-15487
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / API, Table SQL / Planner
> Reporter: Timo Walther
> Assignee: Timo Walther
> Priority: Major
> Labels: pull-request-available
> Time Spent: 40m
> Remaining Estimate: 0h
>
> After FLINK-15281 is merged, we are able to introduce functions with the new
> type inference. We start by enabling scalar functions through the stack.
> This includes the following changes:
> - Introduce a {{UserDefinedFunction.getTypeInference}} method
> - Expose {{TableEnvironment.createTemporarySystemFunction}} and
> {{TableEnvironment.createTemporaryFunction}}
> - Update FunctionCatalog
> - Update the code generation
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