[jira] [Comment Edited] (FLINK-20700) Default value type does not match the return type of method input()

["Timo Walther (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-20700?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17263188#comment-17263188 ] 

Timo Walther edited comment on FLINK-20700 at 1/12/21, 9:30 AM:
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As linked [here|https://stackoverflow.com/questions/49594988/array-elements-in-annotations-used-as-single-values], the curly braces can be omitted.

"If the element value is not an ElementValueArrayInitializer, then an array value whose sole element is the element value is associated with the element."

I will close this issue for now.


was (Author: twalthr):
As linked [here|https://stackoverflow.com/questions/49594988/array-elements-in-annotations-used-as-single-values], the `{` and `}` can be omitted.

"If the element value is not an ElementValueArrayInitializer, then an array value whose sole element is the element value is associated with the element."

I will close this issue for now.

> Default value type does not match the return type of method input()
> -------------------------------------------------------------------
>
>                 Key: FLINK-20700
>                 URL: https://issues.apache.org/jira/browse/FLINK-20700
>             Project: Flink
>          Issue Type: Bug
>          Components: Table SQL / API
>    Affects Versions: 1.12.0
>            Reporter: ZhangWei
>            Priority: Trivial
>
> In org.apache.flink.table.annotation.FunctionHint, the return type of input() is an 
> array of DataTypeHint, while the default value is @DataTypeHint() which is just an object.
> So the method defination should be as below, *{}*should be added.
> DataTypeHint[] input() default \{@DataTypeHint()};



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