small fixes and renames

source/orm/query/intermediates/executable_query.cpp

@@ -22,9 +22,8 @@ sql::query_context executable_query::compile(const sql::dialect& d) const {
   return compiler.build(*context_, d, std::nullopt);
 }
 
-std::string executable_query::str(const sql::executor &exec) const {
-  query_builder compiler;
-  return exec.str(compiler.build(*context_, exec.dialect(), std::nullopt));
+std::string executable_query::str(const sql::dialect& d) const {
+  return compile(d).sql;
 }
 
 }

source/orm/query/intermediates/fetchable_query.cpp

@@ -55,9 +55,6 @@ utils::result<std::optional<sql::record>, utils::error> fetchable_query::fetch_o
   return utils::ok(std::optional{first.release()});
 }
 
-std::string fetchable_query::str(const sql::executor &exec) const {
-  return str(exec.dialect());
-}
 std::string fetchable_query::str(const sql::dialect &d) const {
   return compile(d).sql;
 }