The grid file: An adaptable, symmetric multikey file structure

The grid file: An adaptable, symmetric multikey file structure (1984)

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by J. Nievergelt , H. Hinterberger , K. C. Sevcik

Venue:	ACM Transactions on Database Systems
Citations:	362 - 4 self

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Datum	Value	Source
TITLE	The grid file: An adaptable, symmetric multikey file structure	INFERENCE
AUTHOR NAME	J. Nievergelt	SVM HeaderParse 0.2
AUTHOR AFFIL	lnstitut ftir Informatik, ETH	SVM HeaderParse 0.2
AUTHOR NAME	H. Hinterberger	SVM HeaderParse 0.2
AUTHOR AFFIL	lnstitut ftir Informatik, ETH	SVM HeaderParse 0.2
AUTHOR NAME	K. C. Sevcik	SVM HeaderParse 0.2
AUTHOR AFFIL	University of Toronto	SVM HeaderParse 0.2
ABSTRACT	Traditional file structures that provide multikey access to records, for example, inverted files, are extensions of file structures originally designed for single-key access. They manifest various deficien-cies in particular for multikey access to highly dynamic files. We study the dynamic aspects of tile structures that treat all keys symmetrically, that is, file structures which avoid the distinction between primary and secondary keys. We start from a bitmap approach and treat the problem of file design as one of data compression of a large sparse matrix. This leads to the notions of a grid partition of the search space and of a grid directory, which are the keys to a dynamic file structure called the grid file. This tile system adapts gracefully to its contents under insertions and deletions, and thus achieves an upper hound of two disk accesses for single record retrieval; it also handles range queries and partially specified queries efficiently. We discuss in detail the design decisions that led to the grid file, present simulation results of its behavior, and compare it to other multikey access file structures.	SVM HeaderParse 0.2
YEAR	1984	INFERENCE
VENUE	ACM Transactions on Database Systems	INFERENCE
VENUE TYPE	JOURNAL	INFERENCE
PAGES	38--71	INFERENCE
VOLUME	9	INFERENCE
CITATIONS	33 found	ParsCit 1.0