Add test case with inner aggregate function

h2/src/docsrc/html/changelog.html

@@ -21,6 +21,8 @@ Change Log
 
 <h2>Next Version (unreleased)</h2>
 <ul>
+<li>PR #1664: Allow any expressions in window frames
+</li>
 <li>Issue #1576: H2 Console should not display precision and scale for data types that don't have them
 </li>
 <li>PR #1662: Fix Alter Table Drop Column In View when table name is wrapped by Double Quotes

h2/src/test/org/h2/test/scripts/functions/window/nth_value.sql

@@ -252,3 +252,13 @@ SELECT I, X, LAST_VALUE(I) OVER (ORDER BY X) L FROM VALUES (1, 1), (2, 1), (3, 2
 > 4 2 4
 > 5 3 5
 > rows: 5
+
+SELECT A, MAX(B) M, FIRST_VALUE(A) OVER (ORDER BY A ROWS BETWEEN MAX(B) - 1 FOLLOWING AND UNBOUNDED FOLLOWING) F
+    FROM VALUES (1, 1), (1, 1), (2, 1), (2, 2), (3, 1) V(A, B)
+    GROUP BY A;
+> A M F
+> - - -
+> 1 1 1
+> 2 2 3
+> 3 1 3
+> rows: 3