diff --git a/bin/main.cpp b/bin/main.cpp
index 014d295..52bd8ac 100644
--- a/bin/main.cpp
+++ b/bin/main.cpp
@@ -288,6 +288,9 @@ int main(int argc, char *argv[])
     }
   }
 
+  hack::log()("============================================================");
+  hack::log()("utils::make_query");
+
   {// ex: query function
     auto query = hack::utils::make_query("super_function", "1", "two");
     hack::log()("query", query);
@@ -298,8 +301,14 @@ int main(int argc, char *argv[])
     hack::utils::json js { "test", "data" };
     query = hack::utils::make_query("super_function", 1, 123.3f, js);
     hack::log()("query", query);
+
+    query = hack::utils::make_query("super_function");
+    hack::log()("query", query);
   }
 
+  hack::log()("============================================================");
+  hack::log()("utils::is_link");
+
   {// ex: is link
     std::string link { "https://google.com" };
     if (hack::security::is_link(link))
diff --git a/src/utils/func_query.hpp b/src/utils/func_query.hpp
index 3892b34..75177e0 100644
--- a/src/utils/func_query.hpp
+++ b/src/utils/func_query.hpp
@@ -42,7 +42,6 @@ namespace hack::utils
   inline std::string make_one(json f)
   {
     std::string f_str = nlohmann::to_string(f);
-    // f_str.erase(std::remove(f_str.begin(), f_str.end(), '\''), f_str.end());
     f_str = std::regex_replace(f_str, std::regex("'"), "[quote]");
 
     return hack::string::str_concat + "'" + f_str + "'::jsonb,";
@@ -70,4 +69,9 @@ namespace hack::utils
     return query;
   }  
 
+  std::string make_query(const std::string func)
+  {
+    std::string query = "SELECT s_func." + func + "();";
+    return query;
+  }  
 }