INDEX BUILDING, QUERYING METHOD, DEVICE, AND SYSTEM FOR DISTRIBUTED COLUMN MEMORY DATABASE

摘要

An index building, querying method, device and system for distributed column memory database are provided. The index building method for distributed column memory database includes: obtaining a column field from a distributed column memory database, generating a column index file in which the column field is a key word, the column index file comprising the mapping relationship between the value of the column field in the distributed column memory database and the corresponding Row field value; storing the column index file to a index catalogue corresponding to the column field in the distributed column memory database.