Patent · US Active

Self-maintaining effective value range synopsis in presence of deletes in analytical databases

US10664464B2 · kind B2 · utility

0Cited by

3References

16Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Thomas F. Boehme · Eppelheim, DE
Andreas Brodt · Gerlingen, DE
Alexander Lang · Wedel, DE
Oliver Schiller · Seligenstadt, DE

Key dates

Filing date	Oct 17, 2016
Grant date	May 26, 2020
Priority date	—
Expiry date	Feb 24, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG06F16/2358
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A mechanism is provided for updating attribute value information for a data table. The data table involves a set of attributes. The data table has multiple records associated with multiple data blocks. Attribute value information is associated with each data block of the multiple data blocks. The attribute value information is descriptive of at least one attribute of the set of attributes. A first data block may be marked as modified in response to a delete process for deleting from a first data block of the multiple data blocks a record having at least one attribute value that is used for generating the attribute value information of the first data block. In response to scanning the marked first data block, the attribute value information associated with the first data block may be updated based on the scan results.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.