presto-hive/src/main/java/io/prestosql/plugin/hive/metastore/thrift/ThriftHiveMetastoreClient.java/ThriftHiveMetastoreClient/dropDatabase
class ThriftHiveMetastoreClient:    @Override
    public void dropDatabase(String databaseName, boolean deleteData, boolean cascade)
            throws TException
    {
        client.drop_database(databaseName, deleteData, cascade);
    }