1 files changed, 4 insertions, 0 deletions
diff --git a/yql/essentials/sql/v1/node.cpp b/yql/essentials/sql/v1/node.cpp
index b8a892f9d11..ce843800e57 100644
--- a/yql/essentials/sql/v1/node.cpp
+++ b/yql/essentials/sql/v1/node.cpp
@@ -312,6 +312,10 @@ void INode::DisableSort() {
     DisableSort_ = true;
 }
 
+void INode::PreserveSort() {
+    PreserveSort_ = true;
+}
+
 bool INode::UsedSubquery() const {
     return false;
 }