Use string instead of string_view

Author: Hind-M

include/serialize_null_array.hpp

@@ -6,7 +6,6 @@
 #include <optional>
 #include <stdexcept>
 #include <string>
-#include <string_view>
 #include <vector>
 
 #include "sparrow.hpp"
@@ -177,10 +176,10 @@ namespace sparrow_ipc
              throw std::runtime_error("Expected Null type in schema.");
         }
 
-        std::optional<std::string_view> name;
+        std::optional<std::string> name;
         if (auto fb_name = field->name())
         {
-            name = std::string_view(fb_name->c_str(), fb_name->size());
+            name = std::string(fb_name->c_str(), fb_name->size());
         }
 
 //         std::optional<sparrow::key_value_metadata> metadata;