String PostgreSQLConnection::ErrorMessage()
{
	// no code page conversion, leave it to postgres
	return AsString(PQerrorMessage(conn));
}

String PostgreSQLSession::ErrorMessage()
{
	// no code page conversion, leave it to postgres
	return AsString(PQerrorMessage(conn));
}

bool PostgreSQLSession::Open(const char *connect)
{
	Close();
	conn = PQconnectdb(connect);
	if(PQstatus(conn) != CONNECTION_OK)
	{
		SetError(ErrorMessage(), "Opening database");
		Close();
		return false;
	}
	level = 0;
	
	// set client's code page
	int stat = PQsetClientEncoding(conn, CharsetName(GetDefaultCharset()));
	ASSERT(stat == 0);
	LOG( String("Postgresql client encoding: ") + pg_encoding_to_char( PQclientEncoding(conn) ) );
	
	return true;
}

bool PostgreSQLSession::ReOpen()
{
	PQreset(conn);
	if(PQstatus(conn) != CONNECTION_OK)
	{
		SetError(ErrorMessage(), "Opening database");
		return false;
	}
	level = 0;
	
	return true;	
}