diff --git a/src/duckdb/src/execution/physical_plan_generator.cpp b/src/duckdb/src/execution/physical_plan_generator.cpp
index 74b420a3..30a28ea7 100644
--- a/src/duckdb/src/execution/physical_plan_generator.cpp
+++ b/src/duckdb/src/execution/physical_plan_generator.cpp
@@ -185,4 +185,11 @@ PhysicalOperator &PhysicalPlanGenerator::CreatePlan(LogicalOperator &op) {
 	throw InternalException("Physical plan generator - no plan generated");
 }
 
+ArenaAllocator &PhysicalPlanGenerator::ArenaRef() {
+	if (!physical_plan) {
+		physical_plan = make_uniq<PhysicalPlan>(Allocator::Get(context));
+	}
+	return physical_plan->ArenaRef();
+}
+
 } // namespace duckdb
diff --git a/src/duckdb/src/function/table/version/pragma_version.cpp b/src/duckdb/src/function/table/version/pragma_version.cpp
index 5fa377ef..c537c62a 100644
--- a/src/duckdb/src/function/table/version/pragma_version.cpp
+++ b/src/duckdb/src/function/table/version/pragma_version.cpp
@@ -1,5 +1,5 @@
 #ifndef DUCKDB_PATCH_VERSION
-#define DUCKDB_PATCH_VERSION "0-dev5308"
+#define DUCKDB_PATCH_VERSION "0-dev5310"
 #endif
 #ifndef DUCKDB_MINOR_VERSION
 #define DUCKDB_MINOR_VERSION 5
@@ -8,10 +8,10 @@
 #define DUCKDB_MAJOR_VERSION 1
 #endif
 #ifndef DUCKDB_VERSION
-#define DUCKDB_VERSION "v1.5.0-dev5308"
+#define DUCKDB_VERSION "v1.5.0-dev5310"
 #endif
 #ifndef DUCKDB_SOURCE_ID
-#define DUCKDB_SOURCE_ID "48bdbbebe4"
+#define DUCKDB_SOURCE_ID "5438deaaac"
 #endif
 #include "duckdb/function/table/system_functions.hpp"
 #include "duckdb/main/database.hpp"
diff --git a/src/duckdb/src/include/duckdb/execution/physical_plan_generator.hpp b/src/duckdb/src/include/duckdb/execution/physical_plan_generator.hpp
index 1a1080e7..7de6cbb0 100644
--- a/src/duckdb/src/include/duckdb/execution/physical_plan_generator.hpp
+++ b/src/duckdb/src/include/duckdb/execution/physical_plan_generator.hpp
@@ -100,6 +100,10 @@ class PhysicalPlanGenerator {
 		return physical_plan->Make<T>(std::forward<ARGS>(args)...);
 	}
 
+	//! Get a reference to the ArenaAllocator of the underlying physical plan.
+	//! Creates a new (empty) physical plan if none exists yet.
+	ArenaAllocator &ArenaRef();
+
 public:
 	PhysicalOperator &ResolveDefaultsProjection(LogicalInsert &op, PhysicalOperator &child);