diff --git a/src/context/Iterator.h b/src/context/Iterator.h
index 4ea0a1cf727fae43f563958f0233abfd6fa6d788..f316d371d9bc017cd4ccdf97f6bfd54bddc0ada7 100644
--- a/src/context/Iterator.h
+++ b/src/context/Iterator.h
@@ -179,10 +179,12 @@ public:
     }
 
     const Value& getColumn(const std::string& /* col */) const override {
+        DLOG(FATAL) << "This method should not be invoked";
         return Value::kEmpty;
     }
 
     const LogicalRow* row() const override {
+        DLOG(FATAL) << "This method should not be invoked";
         return nullptr;
     }