diff --git a/internal/stackql/parserutil/parser_util.go b/internal/stackql/parserutil/parser_util.go
index 0ddf2f86..aac48f8a 100644
--- a/internal/stackql/parserutil/parser_util.go
+++ b/internal/stackql/parserutil/parser_util.go
@@ -638,6 +638,11 @@ func inferColNameFromExpr(
 			retVal.IsAggregateExpr = true
 			retVal.Type = aggCol.getReturnType()
 		}
+		// Window functions (with OVER clause) are computed expressions
+		// that don't need to be resolved from underlying tables/CTEs
+		if expr.Over != nil {
+			retVal.IsAggregateExpr = true
+		}
 		if len(funcNameLowered) >= 4 && funcNameLowered[0:4] == "json" {
 			decoratedColumn := strings.ReplaceAll(retVal.Name, `\"`, `"`)
 			retVal.DecoratedColumn = getDecoratedColRendition(decoratedColumn, alias)