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https://issues.apache.org/jira/browse/FLINK-7358?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16131268#comment-16131268
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ASF GitHub Bot commented on FLINK-7358:
---------------------------------------
Github user fhueske commented on the issue:
https://github.com/apache/flink/pull/4534
Hi @sunjincheng121, can you please update the PR description and fill out
the PR template?
The community decided to extend the PR template and to be more strict about
the PR submission process a few weeks ago.
Thank you.
> Add implicitly converts support for User-defined function
> ----------------------------------------------------------
>
> Key: FLINK-7358
> URL: https://issues.apache.org/jira/browse/FLINK-7358
> Project: Flink
> Issue Type: Improvement
> Components: Table API & SQL
> Reporter: sunjincheng
> Assignee: sunjincheng
>
> Currently if user defined a UDF as follows:
> {code}
> object Func extends ScalarFunction {
> def eval(a: Int, b: Long): String = {
> ...
> }
> }
> {code}
> And if the table schema is (a: Int, b: int, c: String), then we can not call
> the UDF `Func('a, 'b)`. So
> I want add implicitly converts when we call UDF. The implicitly convert rule
> is:
> BYTE_TYPE_INFO -> SHORT_TYPE_INFO -> INT_TYPE_INFO -> LONG_TYPE_INFO ->
> FLOAT_TYPE_INFO -> DOUBLE_TYPE_INFO
> *Note:
> In this JIRA. only for TableAPI, And SQL will be fixed in
> https://issues.apache.org/jira/browse/CALCITE-1908.*
> What do you think? [~fhueske]
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