Invention Grant
US09135301B2 Pushdown of sorting and set operations (union, intersection, minus) to a large number of low-power cores in a heterogeneous system
有权
在异构系统中对大量低功耗核心进行排序和设置操作（union，intersection，minus）的下推
- Patent Title: Pushdown of sorting and set operations (union, intersection, minus) to a large number of low-power cores in a heterogeneous system
- Patent Title (中): 在异构系统中对大量低功耗核心进行排序和设置操作（union，intersection，minus）的下推
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Application No.: US13831279Application Date: 2013-03-14
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Publication No.: US09135301B2Publication Date: 2015-09-15
- Inventor: Sabina Petride , Sam Idicula , Rajkumar Sen , Nipun Agarwal
- Applicant: Oracle International Corporation
- Applicant Address: US CA Redwood Shores
- Assignee: ORACLE INTERNATIONAL CORPORATION
- Current Assignee: ORACLE INTERNATIONAL CORPORATION
- Current Assignee Address: US CA Redwood Shores
- Agency: Hickman Palermo Becker Bingham LLP
- Agent Ellen Y. Wei
- Main IPC: G06F17/30
- IPC: G06F17/30
Abstract:
A system and method for performing a query operation on a pair of relations in a database system coupled to a heterogeneous system (HS) is disclosed. Assuming that that pair of relations is partitioned and already loaded into the HS, the database system receives a query on the pair of relations and based on the type of query operation computes the cost of performing the query operation on the database alone or the costs of performing the query operation with the assistance of the HS, each of the costs corresponding to a particular algorithm. If the costs indicate that the HS improves the performance of the query operation, then the HS computes portions of the operation, and returns the results back to the database system. If any parts of the relation are out of sync with the database system, the database system performs operations to maintain transactional consistency.
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