andygrove commented on code in PR #2389:
URL: https://github.com/apache/arrow-datafusion/pull/2389#discussion_r862485635
##########
datafusion/expr/src/function.rs:
##########
@@ -222,6 +222,14 @@ pub fn return_type(
_ => Ok(DataType::Float64),
},
+ BuiltinScalarFunction::Struct => {
+ let fields = input_expr_types
+ .iter()
+ .map(|x| Field::new("item", x.clone(), true))
Review Comment:
This looks like it is generating a struct where all of the fields have the
same name. I would expect that to cause an error.
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