presto-rcfile/src/main/java/io/prestosql/rcfile/text/TextRcFileEncoding.java/TextRcFileEncoding/listEncoding
class TextRcFileEncoding:    @Override
    public ColumnEncoding listEncoding(Type type, ColumnEncoding elementEncoding)
    {
        return new ListEncoding(
                type,
                nullSequence,
                separators,
                escapeByte,
                (TextColumnEncoding) elementEncoding);
    }