presto-rcfile/src/main/java/io/prestosql/rcfile/RcFileWriter.java/RcFileWriter/ColumnEncoder
class RcFileWriter:        public ColumnEncoder(ColumnEncoding columnEncoding, RcFileCompressor compressor)
        {
            this.columnEncoding = columnEncoding;
            this.output = compressor.createCompressedSliceOutput((int) MIN_BUFFER_SIZE.toBytes(), (int) MAX_BUFFER_SIZE.toBytes());
            this.encodeOutput = new ColumnEncodeOutput(lengthOutput, output);
        }