presto-main/src/main/java/io/prestosql/connector/informationschema/InformationSchemaSplitManager.java/InformationSchemaSplitManager/getSplits
class InformationSchemaSplitManager:    @Override
    public ConnectorSplitSource getSplits(ConnectorTransactionHandle transaction, ConnectorSession session, ConnectorTableHandle table, SplitSchedulingStrategy splitSchedulingStrategy)
    {
        List<HostAddress> localAddress = ImmutableList.of(nodeManager.getCurrentNode().getHostAndPort());
        ConnectorSplit split = new InformationSchemaSplit(localAddress);
        return new FixedSplitSource(ImmutableList.of(split));
    }