Application-specific conflict detection for weakly consistent re

Details Application-specific conflict detection for weakly consistent re Application-specific conflict detection for weakly consistent re

1994-12-07

1997-09-23

Black, Thomas G.

395610, 395617, 395620, 39520003, 395827, 395840, 39518209, 3951821, G06F 1730, G06F 720

Patent

active

056714076

ABSTRACT:
Write operations for weakly consistent replicated database systems have application-specific embedded dependency queries and related descriptions of the results that are expected to be returned when the respective dependency queries are run against the database. The dependency queries are arbitrary queries that are provided by the application to satisfy the requirements of the application. Write operations that conflict with the current state of any given instance of such a database are detected by comparing (a) the results that are returned when the dependency queries for those writes are run against the given instance of the database with (b) the results that are expected to be returned.

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