#17411 Relax constraint that file sort order must only reference individual columns

Author: pepijnve

datafusion/physical-expr/src/equivalence/class.rs

@@ -590,8 +590,8 @@ impl EquivalenceGroup {
         aug_mapping: &AugmentedMapping,
         expr: &Arc<dyn PhysicalExpr>,
     ) -> Option<Arc<dyn PhysicalExpr>> {
-        // Literals don't need to be mapped
-        if let Some(_) = expr.as_any().downcast_ref::<Literal>() {
+        // Literals don't need to be projected
+        if expr.as_any().downcast_ref::<Literal>().is_some() {
             return Some(Arc::clone(expr));
         }