alamb commented on a change in pull request #1449:
URL: https://github.com/apache/arrow-datafusion/pull/1449#discussion_r769108105



##########
File path: datafusion/src/sql/planner.rs
##########
@@ -1062,8 +1062,7 @@ impl<'a, S: ContextProvider> SqlToRel<'a, S> {
                 }
 
                 let field = schema.field(field_index - 1);
-                let col_ident = 
SQLExpr::Identifier(Ident::new(field.qualified_name()));
-                self.sql_expr_to_logical_expr(&col_ident, schema)?
+                Expr::Column(field.qualified_column())

Review comment:
       This change avoids trying to reparse the string as a column name, and 
instead just creates the `Column` reference directly




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