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US 6,557,014 B1Granted
Method and apparatus for record addressing in partitioned files
AssigneeCompaq Computer Corporation
InventorsPedro Cellis, Michael Heytens, Mark Melton
Life of this patent
Estimating the term…
Abstract
A method and apparatus introduces the creation and use of two record addressing functions. One function “computeRID” assigns identifiers to records, and the other function “lookupRID” performs the related task of locating a record given its identifier.
Claims3
A method for adding an nth partition to existing partitions of a file and balancing records among the nth partition and existing partitions, by a data processing system having a memory, comprising the steps of:
- adding an nth partition to the existing partitions;
- executing a function to determine a partition and an offset for each of one or more records of the existing partitions from an input of an identifier and a total number of partitions;
- and
- if the determined partition is the nth partition, moving and inserting the record into the nth partition.
1 more element
Dependencies are inferred from the claim text.