Patent ID: 7548928
Filing Date: 2009-06-16
Classification: G06F,H03M,Y10S

Abstract:
1. A computer-implemented method of compressing data in a table data structure, comprising: accessing a data set within the table data structure, the data set having associated therewith a range of rows of the table data structure; wherein data items in the data set are represented by key-value pairs; wherein the key of each key-value pair uniquely corresponds to the value of the key-value pair; applying a first compression to the values of the key-value pairs in the data set to produce a first compressed output; applying a second compression, distinct from the first compression, to the keys of the key-value pairs in the data set to produce a second compressed output; and applying a third compression to the first compressed output and second compressed output to produce a first compressed output block, wherein the third compression is distinct from the first compression and second compression and the first compressed output block is stored in a computer readable medium.