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:
Jun. 20, 2023

Filed:

Feb. 10, 2021
Applicant:

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

Inventors:

Chang Sheng Liu, Beijing, CN;

Ya Qiong Liu, Beijing, CN;

Lei Cui, Beijing, CN;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 16/00 (2019.01); G06F 16/2455 (2019.01); G06F 16/2453 (2019.01); G06F 16/242 (2019.01); G06F 16/248 (2019.01); G06F 16/25 (2019.01);
U.S. Cl.
CPC ...
G06F 16/2456 (2019.01); G06F 16/24544 (2019.01); G06F 16/248 (2019.01); G06F 16/2435 (2019.01); G06F 16/24552 (2019.01); G06F 16/256 (2019.01);
Abstract

A system and method of joining remote tables by a federated server is provided. A method includes receiving a data join request from a client device; sending a first block fetch request to a first data source based on the data join request; receiving a first set of block data from the first data source; sending a second block fetch request to a second data source based on the data join request and a bind array containing the data of join column in the first data source; receiving a second set of block data from the second data source; and sending an output to the client device in response to the data join request in the form of rows from an outer table and an inner table.


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