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:
Dec. 19, 2023

Filed:

Aug. 27, 2021
Applicant:

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

Inventors:

Daniele Costante Zilio, Georgetown, CA;

Muhammad Esaad Afaque, Thornhill, CA;

Darren Andrew Pepper, North York, CA;

Xi Sun, Toronto, CA;

Kostas Rakopoulos, Toronto, CA;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 16/24 (2019.01); G06F 16/2455 (2019.01); G06F 16/2453 (2019.01);
U.S. Cl.
CPC ...
G06F 16/24561 (2019.01); G06F 16/2456 (2019.01); G06F 16/24535 (2019.01);
Abstract

Methods, computer program products, and systems are presented. The method computer program products, and systems can include, for instance: obtaining a query statement; parsing the query statement and determining from the parsing that the query statement is a compound predicate query statement that includes a first predicate and a second predicate; responsively to the parsing, rewriting the obtained query statement to provide a transformed query statement, wherein the rewriting includes (a) specifying generating of a temporary table, wherein the specified generating uses data values of the first predicate and (b) specifying a join function that uses the temporary table and a table referenced in the query statement; evaluating a candidate access path associated to the transformed query statement; selecting the candidate access path as an access path for execution; and executing the transformed query statement according to the selected candidate access path for execution.


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