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https://issues.apache.org/jira/browse/FLINK-4781?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15564217#comment-15564217
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sunjincheng commented on FLINK-4781:
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Thanks for taking time to check this, Fabian.
when we try to create PR yesterday, we noticed "ScalarFunction" and
"UserDefinedFunction". And yes, it seems that ScalarFunction has achieved the
same goal as our design. In fact, we have implemented three different user
defined functions: UDF, UDT(table)F and UDA(Aggregate)F, let me close this
ticket and open/work on another ticket for UDTF and UDAF.
> Add User Defined Function(UDF) API for Table API
> ------------------------------------------------
>
> Key: FLINK-4781
> URL: https://issues.apache.org/jira/browse/FLINK-4781
> Project: Flink
> Issue Type: New Feature
> Components: Table API & SQL
> Reporter: Shaoxuan Wang
> Assignee: sunjincheng
>
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