diff --git a/dbms/include/DB/IO/BufferWithOwnMemory.h b/dbms/include/DB/IO/BufferWithOwnMemory.h
index 32cc2e05498..0c044ddfb4c 100644
--- a/dbms/include/DB/IO/BufferWithOwnMemory.h
+++ b/dbms/include/DB/IO/BufferWithOwnMemory.h
@@ -20,12 +20,12 @@ namespace DB
   */
 struct Memory : boost::noncopyable
 {
-	size_t m_capacity;
-	size_t m_size;
-	char * m_data;
-	size_t alignment;
+	size_t m_capacity = 0;
+	size_t m_size = 0;
+	char * m_data = nullptr;
+	size_t alignment = 0;
 
-	Memory() : m_capacity(0), m_size(0), m_data(NULL), alignment(0) {}
+    Memory() {}
 
 	/// Если alignment != 0, то будет выделяться память, выровненная на alignment.
 	Memory(size_t size_, size_t alignment_ = 0) : m_capacity(size_), m_size(m_capacity), alignment(alignment_)
@@ -38,6 +38,21 @@ struct Memory : boost::noncopyable
 		dealloc();
 	}
 
+	Memory(Memory && rhs)
+	{
+		*this = std::move(rhs);
+	}
+
+	Memory & operator=(Memory && rhs)
+	{
+		std::swap(m_capacity, rhs.m_capacity);
+		std::swap(m_size, rhs.m_size);
+		std::swap(m_data, rhs.m_data);
+		std::swap(alignment, rhs.alignment);
+
+		return *this;
+	}
+
 	size_t size() const { return m_size; }
 	const char & operator[](size_t i) const { return m_data[i]; }
 	char & operator[](size_t i) { return m_data[i]; }