presto-parquet/src/main/java/io/prestosql/parquet/ParquetEncoding.java/ParquetEncoding/getDictionaryBasedValuesReader
class ParquetEncoding:    public ValuesReader getDictionaryBasedValuesReader(ColumnDescriptor descriptor, ValuesType valuesType, Dictionary dictionary)
    {
        throw new UnsupportedOperationException(" Dictionary encoding is not supported for: " + name());
    }