Tiny optimization: use `System.arraycopy` when possible

h2/src/main/org/h2/expression/aggregate/Aggregate.java

@@ -336,9 +336,7 @@ public class Aggregate extends AbstractAggregate {
                     array[i + 1] = o.expression.getValue(session);
                 }
             } else {
-                for (int i = 1; i <= size; i++) {
-                    array[i] = remembered[i];
-                }
+                System.arraycopy(remembered, 1, array, 1, size);
             }
             v = ValueArray.get(array);
         }

h2/src/main/org/h2/index/FunctionCursorResultSet.java

@@ -30,9 +30,7 @@ public class FunctionCursorResultSet extends AbstractFunctionCursor {
             int columnCount = result.getVisibleColumnCount();
             Value[] currentRow = result.currentRow();
             values = new Value[columnCount];
-            for (int i = 0; i < columnCount; i++) {
-                values[i] = currentRow[i];
-            }
+            System.arraycopy(currentRow, 0, values, 0, columnCount);
         } else {
             values = null;
         }