Jimexist commented on code in PR #4041:
URL: https://github.com/apache/arrow-datafusion/pull/4041#discussion_r1011139989
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datafusion/expr/src/function.rs:
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@@ -157,6 +157,7 @@ pub fn return_type(
utf8_to_int_type(&input_expr_types[0], "octet_length")
}
BuiltinScalarFunction::Random => Ok(DataType::Float64),
+ BuiltinScalarFunction::Uuid => Ok(DataType::Utf8),
Review Comment:
do you think binary is a better type than string? in this case the `-`
delimited hex is a standardized form however using binary people might confuse
with 16 byte array...?
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