presto-tpcds/src/main/java/io/prestosql/plugin/tpcds/TpcdsMetadata.java/TpcdsMetadata/getTableHandle
class TpcdsMetadata:    @Override
    public ConnectorTableHandle getTableHandle(ConnectorSession session, SchemaTableName tableName)
    {
        requireNonNull(tableName, "tableName is null");
        if (!tableNames.contains(tableName.getTableName())) {
            return null;
        }

        // parse the scale factor
        double scaleFactor = schemaNameToScaleFactor(tableName.getSchemaName());
        if (scaleFactor <= 0) {
            return null;
        }

        return new TpcdsTableHandle(tableName.getTableName(), scaleFactor);
    }