viirya commented on code in PR #9238:
URL: https://github.com/apache/arrow-datafusion/pull/9238#discussion_r1491326276
##########
datafusion/common/src/scalar/struct_builder.rs:
##########
@@ -39,8 +39,40 @@ impl ScalarStructBuilder {
Self::default()
}
- /// Return a new [`ScalarValue::Struct`] with the specified fields and a
- /// single null value
+ /// Return a new [`ScalarValue::Struct`] with a single `null` value.
+ ///
+ /// Note this is different from a struct where each of the specified fields
+ /// are null (e.g. `{a: NULL}`)
+ ///
Review Comment:
👍
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