added: QueryResult stack to PostgreSQLConnector

this allowes us to call query() recursively (from after_select() callback)



git-svn-id: svn://ttmath.org/publicrep/morm/trunk@1085 e52654a7-88a9-db11-a3e9-0013d4bc506e

src/dbconnector.cpp

@@ -60,6 +60,10 @@ DbConnector::~DbConnector()
 }
 
 
+void DbConnector::clear_last_query_result()
+{
+}
+
 
 bool DbConnector::query(const PT::TextStream & stream)
 {
@@ -229,6 +233,11 @@ void DbConnector::allocate_default_expression_if_needed()
 	}
 }
 
+const char * DbConnector::get_field_string_value(const char * field_name)
+{
+	return nullptr;
+}
+
 const char * DbConnector::get_field_string_value(const wchar_t * field_name)
 {
 	return nullptr;