presto-kudu/src/main/java/io/prestosql/plugin/kudu/KuduPageSink.java/KuduPageSink/KuduPageSink
class KuduPageSink:    private KuduPageSink(
            ConnectorSession connectorSession,
            KuduClientSession clientSession,
            KuduTable table,
            KuduTableMapping mapping)
    {
        requireNonNull(clientSession, "clientSession is null");
        this.connectorSession = connectorSession;
        this.columnTypes = mapping.getColumnTypes();
        this.originalColumnTypes = mapping.getOriginalColumnTypes();
        this.generateUUID = mapping.isGenerateUUID();

        this.table = table;
        this.session = clientSession.newSession();
        this.session.setFlushMode(SessionConfiguration.FlushMode.AUTO_FLUSH_BACKGROUND);
        uuid = UUID.randomUUID().toString();
    }