Tsinghua University

Timecho Ai Technology Co. Ltd

Mingsheng Long

Chen Wang

Jianmin Wang

Xiangdong Huang

Jialin Qiao

Jiaguang Sun

Tian Jiang

A columnar storage method and a query method and system for time series data. The storage method includes: dividing a column of time series data into a plurality of pages, wherein each page stores a part of data points of the column of time series data and the sum of the data points stored in all the pages is all the data points in the column of time series data (S); and setting two parts, i.e., a page header and a page body, for each page, storing summary index information of all the data points in the page in the page header of the page and storing data value information of all the data points in the page in the page body of the page (S).

Columnar storage and query method and system for time series data

Provided are a method and device for storing time series data with adaptive length encoding, including: acquiring data values corresponding to timestamps according to a sequential order of timestamps; using a ratio of storage space values required to pre-store the previous n data values to storage space values required to pre-store rule information of a preset encoding rule and encoding data according to the previous n data values as a storage gain corresponding to the time at which the n-th data value is acquired; storing the rule information of the preset encoding rule and the encoding data corresponding to a previous n&#x2212;1 data values when the storage gain corresponding to the time at which the n-th data value is acquired is less than that corresponding to the time at which the (n&#x2212;1)-th data value is acquired.

Method and device for storing time series data with adaptive length encoding

Growing community of inventors

Beijing, China

Mingsheng Long