waynexia commented on a change in pull request #788:
URL: https://github.com/apache/arrow-datafusion/pull/788#discussion_r678004757
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File path: datafusion/src/scalar.rs
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@@ -65,8 +65,9 @@ pub enum ScalarValue {
Binary(Option<Vec<u8>>),
/// large binary
LargeBinary(Option<Vec<u8>>),
- /// list of nested ScalarValue
- List(Option<Vec<ScalarValue>>, DataType),
+ /// list of nested ScalarValue (boxed to reduce size_of(ScalarValue))
+ #[allow(clippy::box_vec)]
+ List(Option<Box<Vec<ScalarValue>>>, Box<DataType>),
Review comment:
This is an interesting optimization 👍
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