Hi David Thanks for your starting this new feature's discussion. Can you explain what are the major benefits after doing delta encoding for the numeric type column.
Regards Liang 2017-04-05 16:01 GMT+05:30 QiangCai <qiang...@qq.com>: > Hi all, > > Now we plan to implement delta encoding for the numeric type column in > SORT_COLUMNS. > > 1. use delta encoding to encode the numeric type data > > 2. write present metadata to the page header, to record the null value. > > 3. improve the compression on no-dictionary string column. > use RLE to compress the array of the lengths in LV encoding. > > Any thoughts, comments and questions ? > > Best Regards > David QiangCai > > > > -- > View this message in context: http://apache-carbondata- > mailing-list-archive.1130556.n5.nabble.com/DISCUSSION- > implement-delta-encoding-for-numeric-type-column-in-SORT- > COLUMNS-tp10124.html > Sent from the Apache CarbonData Mailing List archive mailing list archive > at Nabble.com. > -- Regards Liang
