Query plan execution by implementation of plan operations...

Details Query plan execution by implementation of plan operations... Query plan execution by implementation of plan operations...

2005-12-30

2008-12-02

Mofiz, Apu (Department: 2161)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000, C707S793000, C707S793000, C707S793000

Reexamination Certificate

active

07461057

ABSTRACT:
A system and method for executing a query plan are disclosed. In the system and method, a join graph is generated to represent the query plan. The join graph includes a set of plan operations that are to be executed for implementing the join graph. The query plan is received by a distributed network of a logical index server and one or more selected physical index servers. Each physical index server receives a portion of the plan operations, and determines what plan data is needed to execute the portion of the plan operations. A system and method includes a process for determining what plan data is needed from other physical index servers, or what plan data is needed by other physical index servers.

REFERENCES:
patent: 5506984 (1996-04-01), Miller
patent: 5590321 (1996-12-01), Lin et al.
patent: 7310638 (2007-12-01), Blair
patent: 2004/0030677 (2004-02-01), Young-Lai

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