diff --git a/flex/engines/graph_db/runtime/common/rt_any.cc b/flex/engines/graph_db/runtime/common/rt_any.cc
index 04745dde47ae..e3cf4a1d55d8 100644
--- a/flex/engines/graph_db/runtime/common/rt_any.cc
+++ b/flex/engines/graph_db/runtime/common/rt_any.cc
@@ -626,8 +626,7 @@ void RTAny::sink(const gs::ReadTransaction& txn, int id,
   } else if (type_ == RTAnyType::kStringSetValue) {
     auto collection = col->mutable_entry()->mutable_collection();
     for (auto& s : *value_.str_set) {
-      collection->add_collection()->mutable_object()->mutable_str()->assign(
-          s.data(), s.size());
+      collection->add_collection()->mutable_object()->set_str(s);
     }
   } else if (type_ == RTAnyType::kTuple) {
     auto collection = col->mutable_entry()->mutable_collection();
diff --git a/flex/engines/hqps_db/core/operator/sink.h b/flex/engines/hqps_db/core/operator/sink.h
index 5fdd8a0efd8d..9ff64bf309b2 100644
--- a/flex/engines/hqps_db/core/operator/sink.h
+++ b/flex/engines/hqps_db/core/operator/sink.h
@@ -130,13 +130,13 @@ template <typename T,
           typename std::enable_if<
               (std::is_same_v<T, std::string_view>)>::type* = nullptr>
 void template_set_value(common::Value* value, T v) {
-  value->set_str(v.data(), v.size());
+  value->mutable_str()->assign(v.data(), v.size());
 }
 
 template <typename T, typename std::enable_if<
                           (std::is_same_v<T, std::string>)>::type* = nullptr>
 void template_set_value(common::Value* value, T v) {
-  value->mutable_str()->assign(v.data(), v.size());
+  value->set_str(v.data(), v.size());
 }
 
 template <typename T,
@@ -233,7 +233,7 @@ void template_set_key_value(results::KeyValues* map,
                             const VariableKeyValue& key_value) {
   for (auto& kv : key_value) {
     auto cur_kv = map->add_key_values();
-    cur_kv->mutable_key()->set_name(kv.first);
+    cur_kv->mutable_key()->set_str(kv.first);
     auto value = cur_kv->mutable_value()->mutable_element();
     set_any_to_element(kv.second, value);
   }
diff --git a/flex/interactive/examples/modern_graph/graph.yaml b/flex/interactive/examples/modern_graph/graph.yaml
index e79acb51937c..6551adf93cc9 100644
--- a/flex/interactive/examples/modern_graph/graph.yaml
+++ b/flex/interactive/examples/modern_graph/graph.yaml
@@ -18,8 +18,7 @@ schema:
           property_name: name
           property_type:
             string:
-              var_char:
-                max_length: 128
+              long_text:
         - property_id: 2
           property_name: age
           property_type: