Minor: Interval singleton (#15859)

* interval singleron

* fmt

* impl from

Author: jayzhan211

datafusion/expr-common/src/interval_arithmetic.rs

@@ -949,6 +949,18 @@ impl Display for Interval {
     }
 }
 
+impl From<ScalarValue> for Interval {
+    fn from(value: ScalarValue) -> Self {
+        Self::new(value.clone(), value)
+    }
+}
+
+impl From<&ScalarValue> for Interval {
+    fn from(value: &ScalarValue) -> Self {
+        Self::new(value.to_owned(), value.to_owned())
+    }
+}
+
 /// Applies the given binary operator the `lhs` and `rhs` arguments.
 pub fn apply_operator(op: &Operator, lhs: &Interval, rhs: &Interval) -> Result<Interval> {
     match *op {

datafusion/physical-expr/src/equivalence/properties/mod.rs

@@ -1600,7 +1600,7 @@ fn get_expr_properties(
     } else if let Some(literal) = expr.as_any().downcast_ref::<Literal>() {
         Ok(ExprProperties {
             sort_properties: SortProperties::Singleton,
-            range: Interval::try_new(literal.value().clone(), literal.value().clone())?,
+            range: literal.value().into(),
             preserves_lex_ordering: true,
         })
     } else {