The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 20, 2021

Filed:

Sep. 21, 2018
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Shuo Li, Beijing, CN;

Ping Liang, Beijing, CN;

Ke Wei Wei, Beijing, CN;

Xin Ying Yang, Beijing, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/07 (2006.01); G06F 16/2453 (2019.01); G06F 16/27 (2019.01); G06F 16/22 (2019.01); G06F 16/2455 (2019.01);
U.S. Cl.
CPC ...
G06F 16/2453 (2019.01); G06F 16/2282 (2019.01); G06F 16/24545 (2019.01); G06F 16/24554 (2019.01); G06F 16/278 (2019.01);
Abstract

In an approach to determining an access method for a partition in a partition table, a computer receives a query and determines if there is a partition table utilized by the query. When there is a partition table utilized by the query, then the computer determines that a partition in the partition table meets the plurality of conditions of the query. The computer collects a plurality of partition level statistics for the partition that meets the plurality of conditions of the query. Additionally, the computer determines, based, at least in part, on the plurality of partition level statistics, a cost for one or more access methods for the partition that meets the plurality of conditions of the query. Furthermore, the computer determines, based, at least in part, on the cost for each access method, an access method for the partition that meets the plurality of conditions of the query.


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