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https://issues.apache.org/jira/browse/CALCITE-2772?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16988259#comment-16988259
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Rui Wang commented on CALCITE-2772:
-----------------------------------
Hello, [~pzw2018], Calcite is releasing 1.22.0. As you have a pending PR
already, would you consider to improve it to make it possibly released in
1.22.0. varargs support in UDF is indeed useful.
> Support varargs for user-defined functions (UDFs)
> -------------------------------------------------
>
> Key: CALCITE-2772
> URL: https://issues.apache.org/jira/browse/CALCITE-2772
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: pengzhiwei
> Assignee: pengzhiwei
> Priority: Major
> Labels: pull-request-available
> Attachments: support_varargs_udf.patch
>
> Time Spent: 2h 40m
> Remaining Estimate: 0h
>
> Support varargs for user-defined functions as the case followed:
> {code:java}
> public class ConcatWs {
> public String eval(String sep, String... strs) {...}
> }{code}
>
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