paleolimbot commented on code in PR #16170:
URL: https://github.com/apache/datafusion/pull/16170#discussion_r2132357484
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datafusion/expr/src/expr.rs:
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@@ -274,16 +275,16 @@ use sqlparser::ast::{
/// assert!(rewritten.transformed);
/// // to 42 = 5 AND b = 6
/// assert_eq!(rewritten.data, lit(42).eq(lit(5)).and(col("b").eq(lit(6))));
-#[derive(Clone, PartialEq, Eq, PartialOrd, Hash, Debug)]
+#[derive(Clone, PartialEq, PartialOrd, Eq, Debug, Hash)]
pub enum Expr {
/// An expression with a specific name.
Alias(Alias),
/// A named reference to a qualified field in a schema.
Column(Column),
/// A named reference to a variable in a registry.
ScalarVariable(DataType, Vec<String>),
- /// A constant value.
- Literal(ScalarValue),
+ /// A constant value along with associated metadata
+ Literal(ScalarValue, Option<BTreeMap<String, String>>),
Review Comment:
Ah I see...if you make this a HashMap the `#[derive(Debug)]` on the enum no
longer works out of the box. I don't have a strong opinion about this one!
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