some work for SELECT statement

git-svn-id: svn://ttmath.org/publicrep/morm/trunk@1077 e52654a7-88a9-db11-a3e9-0013d4bc506e

src/baseexpression.cpp

@@ -140,6 +140,27 @@ void BaseExpression::after_field_value(const std::string &)
 }
 
 
+void BaseExpression::before_field_value(const wchar_t *)
+{
+}
+
+
+void BaseExpression::after_field_value(const wchar_t *)
+{
+}
+
+
+void BaseExpression::before_field_value(const char *)
+{
+}
+
+
+void BaseExpression::after_field_value(const char *)
+{
+}
+
+
+
 void BaseExpression::put_name_value_separator()
 {
 	(*out_stream) << ',';