timsaucer commented on code in PR #16170:
URL: https://github.com/apache/datafusion/pull/16170#discussion_r2127334822
##########
datafusion/expr/src/expr_schema.rs:
##########
@@ -420,11 +420,18 @@ impl ExprSchemable for Expr {
Expr::ScalarVariable(ty, _) => {
Ok(Arc::new(Field::new(&schema_name, ty.clone(), true)))
}
- Expr::Literal(l) => Ok(Arc::new(Field::new(
- &schema_name,
- l.data_type(),
- l.is_null(),
- ))),
+ Expr::Literal(l, metadata) => {
+ let mut field = Field::new(&schema_name, l.data_type(),
l.is_null());
+ if let Some(metadata) = metadata {
+ field = field.with_metadata(
+ metadata
+ .iter()
+ .map(|(k, v)| (k.clone(), v.clone()))
+ .collect(),
Review Comment:
Described in below comment
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