presto-tpcds/src/main/java/io/prestosql/plugin/tpcds/TpcdsMetadata.java/TpcdsMetadata/getTableMetadata
class TpcdsMetadata:    private static ConnectorTableMetadata getTableMetadata(String schemaName, Table tpcdsTable)
    {
        ImmutableList.Builder<ColumnMetadata> columns = ImmutableList.builder();
        for (Column column : tpcdsTable.getColumns()) {
            columns.add(new ColumnMetadata(column.getName(), getPrestoType(column.getType())));
        }
        SchemaTableName tableName = new SchemaTableName(schemaName, tpcdsTable.getName());
        return new ConnectorTableMetadata(tableName, columns.build());
    }