From 2dbf45bc103db8dc780b2e3441c74f51f40e6555 Mon Sep 17 00:00:00 2001
From: Alan Cai <caialan@amazon.com>
Date: Fri, 13 Dec 2024 15:07:39 -0800
Subject: [PATCH] Add comment to ExprWindow.Over

---
 partiql-ast/src/main/java/org/partiql/ast/expr/ExprWindow.java | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/partiql-ast/src/main/java/org/partiql/ast/expr/ExprWindow.java b/partiql-ast/src/main/java/org/partiql/ast/expr/ExprWindow.java
index a39f11c2d..f84067077 100644
--- a/partiql-ast/src/main/java/org/partiql/ast/expr/ExprWindow.java
+++ b/partiql-ast/src/main/java/org/partiql/ast/expr/ExprWindow.java
@@ -66,9 +66,11 @@ public <R, C> R accept(@NotNull AstVisitor<R, C> visitor, C ctx) {
     @lombok.Builder(builderClassName = "Builder")
     @EqualsAndHashCode(callSuper = false)
     public static class Over extends AstNode {
+        // Empty list represents no `PARTITION BY` specifications
         @NotNull
         public final List<Expr> partitions;
 
+        // Empty list represents no `ORDER BY` specifications
         @NotNull
         public final List<Sort> sorts;