dharanad commented on code in PR #11614:
URL: https://github.com/apache/datafusion/pull/11614#discussion_r1687937536
##########
datafusion/functions/src/core/named_struct.rs:
##########
@@ -57,6 +57,15 @@ fn named_struct_expr(args: &[ColumnarValue]) ->
Result<ColumnarValue> {
.into_iter()
.unzip();
+ // Check to enforce the uniqueness of struct field name
+ let unique_field_names_set = names.iter().collect::<HashSet<_>>();
+
+ if unique_field_names_set.len() != names.len() {
+ return exec_err!("named_struct requires unique field names");
+ }
+
+ drop(unique_field_names_set);
Review Comment:
`hashbrown::HashSet` holds the string references so dropping the set here.
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