presto-orc/src/main/java/io/prestosql/orc/metadata/OrcMetadataReader.java/OrcMetadataReader/toColumnEncodingKind
class OrcMetadataReader:    private static ColumnEncodingKind toColumnEncodingKind(OrcProto.ColumnEncoding.Kind columnEncodingKind)
    {
        switch (columnEncodingKind) {
            case DIRECT:
                return ColumnEncodingKind.DIRECT;
            case DIRECT_V2:
                return ColumnEncodingKind.DIRECT_V2;
            case DICTIONARY:
                return ColumnEncodingKind.DICTIONARY;
            case DICTIONARY_V2:
                return ColumnEncodingKind.DICTIONARY_V2;
            default:
                throw new IllegalStateException(columnEncodingKind + " stream encoding not implemented yet");
        }
    }