jayzhan211 commented on code in PR #13717:
URL: https://github.com/apache/datafusion/pull/13717#discussion_r1889979703
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datafusion/core/src/catalog_common/information_schema.rs:
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@@ -406,6 +406,7 @@ fn get_udf_args_and_return_types(
.into_iter()
.map(|arg_types| {
// only handle the function which implemented
[`ScalarUDFImpl::return_type`] method
+ #[allow(deprecated)]
Review Comment:
The optionality is the same as the current status where you can use
`return_type` for simple case or `return_type_from_exprs` for advanced case. 😕
> eg udf could tell us what a set of possible return types is
Interesting, without input's information?
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