protected function createTablesForMaterializedViews()
{
$statement = new SimpleStatement("CREATE TABLE {$this->tableNamePrefix}_1 (key1 text, value1 int, PRIMARY KEY(key1))");
$this->session->execute($statement);
$statement = new SimpleStatement("CREATE TABLE {$this->tableNamePrefix}_2 (key1 text, key2 int, value1 int, PRIMARY KEY(key1, key2))");
$this->session->execute($statement);
}