presto-tpcds/src/main/java/io/prestosql/plugin/tpcds/TpcdsRecordSetProvider.java/TpcdsRecordSetProvider/getRecordSet
class TpcdsRecordSetProvider:    @Override
    public RecordSet getRecordSet(
            ConnectorTransactionHandle transaction,
            ConnectorSession connectorSession,
            ConnectorSplit split,
            ConnectorTableHandle tableHandle,
            List<? extends ColumnHandle> columns)
    {
        TpcdsSplit tpcdsSplit = (TpcdsSplit) split;
        TpcdsTableHandle tpcdsTable = (TpcdsTableHandle) tableHandle;

        Table table = getTable(tpcdsTable.getTableName());
        double scaleFactor = tpcdsTable.getScaleFactor();
        int partNumber = tpcdsSplit.getPartNumber();
        int totalParts = tpcdsSplit.getTotalParts();
        boolean noSexism = tpcdsSplit.isNoSexism();

        ImmutableList.Builder<Column> builder = ImmutableList.builder();
        for (ColumnHandle column : columns) {
            String columnName = ((TpcdsColumnHandle) column).getColumnName();
            builder.add(table.getColumn(columnName));
        }

        Session session = Session.getDefaultSession()
                .withScale(scaleFactor)
                .withParallelism(totalParts)
                .withChunkNumber(partNumber + 1)
                .withTable(table)
                .withNoSexism(noSexism);
        Results results = constructResults(table, session);
        return new TpcdsRecordSet(results, builder.build());
    }