jayzhan211 commented on code in PR #14409:
URL: https://github.com/apache/datafusion/pull/14409#discussion_r1938599855
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datafusion/expr-common/src/type_coercion/binary.rs:
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@@ -614,7 +614,11 @@ pub fn try_type_union_resolution_with_struct(
let mut keys_string: Option<String> = None;
for data_type in data_types {
if let DataType::Struct(fields) = data_type {
- let keys = fields.iter().map(|f| f.name().to_owned()).join(",");
+ let keys = fields
+ .iter()
+ .map(|f| f.name().to_owned())
+ .sorted()
Review Comment:
I think the order matters, reorder doesn't seem correct
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