diff --git a/minisql/src/schema.rs b/minisql/src/schema.rs
index 570d81d..10e542f 100644
--- a/minisql/src/schema.rs
+++ b/minisql/src/schema.rs
@@ -59,10 +59,16 @@ impl TableSchema {
     }
 
     pub fn get_columns(&self) -> Vec<&ColumnName> {
-        self.column_name_position_mapping
+        let mut columns_in_random_order: Vec<_> = self.column_name_position_mapping
             .iter()
-            .map(|(name, _)| name)
-            .collect()
+            .collect();
+        columns_in_random_order.sort_by(|&(_, column0), &(_, column1)| column0.cmp(column1));
+        
+        let columns: Vec<_> = columns_in_random_order
+            .iter()
+            .map(|(name, _)| *name)
+            .collect();
+        columns
     }
 
     pub fn does_column_exist(&self, column_name: &ColumnName) -> bool {