Invention Grant
- Patent Title: Generating a native access plan for semi join operators
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Application No.: US14974820Application Date: 2015-12-18
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Publication No.: US10664475B2Publication Date: 2020-05-26
- Inventor: Xiaobin Ma , Xun Cheng
- Applicant: Sybase, Inc.
- Applicant Address: US CA Dublin
- Assignee: SYBASE, INC.
- Current Assignee: SYBASE, INC.
- Current Assignee Address: US CA Dublin
- Agency: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- Main IPC: G06F7/00
- IPC: G06F7/00 ; G06F16/2453 ; G06F16/2455

Abstract:
Disclosed herein are system, method, and computer program product embodiments for generating a native access plan for semi join operators. An embodiment operates by generating a plurality of variables based upon the positions of a plurality of operators in a compiled query plan, opening and traversing tables as the query plan is executed, and closing those tables based on the rows queried and the plurality of variables.
Public/Granted literature
- US20170177666A1 GENERATING A NATIVE ACCESS PLAN FOR SEMI JOIN OPERATORS Public/Granted day:2017-06-22
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