mysqlpp and wchar_t problem

[gani b. c.]

hi..
i have a problem using Query class from mysqlpp with wchar_t. i hope
somebody can help me with this.
i want to insert unicode to table.

here is the sample code

	mysqlpp::Connection con( "test", "localhost",  "test", "" );
	mysqlpp::Query query = con.query();
	char *		test = "abcdefghij";
	wchar_t *	wtest = L"abcdefghij";

	query << "INSERT INTO tes VALUES( '" << test << "')";
	query.execute();

	query << "INSERT INTO tes VALUES( '" << wtest << "')";
	query.execute();



the char test will gave the right result, 'abcdefghij' inserted to db.
but the wchar_t wtest not give the right result, the record filled with
'004A00F4'.
it seems Query not welcome unicode.
so how can I insert unicode using mysqlpp??

thx.