Re: [DISCUSSION]implement delta encoding for numeric type column in SORT_COLUMNS

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 : > Hi all, > > Now we plan to implement delta encoding

Re: [DISCUSSION]implement delta encoding for numeric type column in SORT_COLUMNS

> 在 2017年4月5日，下午6:31，QiangCai 写道： > > 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 > I think the adaptive data type conversion still apply here, right? >

[DISCUSSION]implement delta encoding for numeric type column in SORT_COLUMNS

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