Reduced Cover-Trees and their Application in the Sabre Access Path Model.
Kjell Karlsson:
Reduced Cover-Trees and their Application in the Sabre Access Path Model.
VLDB 1981: 345-353@inproceedings{DBLP:conf/vldb/Karlsson81,
author = {Kjell Karlsson},
title = {Reduced Cover-Trees and their Application in the Sabre Access
Path Model},
booktitle = {Very Large Data Bases, 7th International Conference, September
9-11, 1981, Cannes, France, Proceedings},
publisher = {IEEE Computer Society},
year = {1981},
pages = {345-353},
ee = {db/conf/vldb/Karlsson81.html},
crossref = {DBLP:conf/vldb/81},
bibsource = {DBLP, http://dblp.uni-trier.de}
}
BibTeX
Abstract
In this paper we define a tree-structure, the reduced
cover-tree (RCT), for implementing both classical
indexes and multi-attribute search structures
and we outline its application in the data access
model of the relational multi-processor data base
machine SABRE. The kernel of this data access model
is an RCT describing the placement of a relation
that could be either a multi-attribute clustering
scheme also used to - in some extent - substitute
secondary indexes, or a non-dense unique key index.
If the placement is achieved by multi-attribute
clustering a unique key index can be nicely
constructed with the same tree-structure. The RCT is
represented by a bit-table in a most economic way
and thus the number of accesses to memory when
retrieval can be considerably cut down. On the
average the memory occupation rate should turn about 75 per cent.
Key-words : Data base machine, access paths, multi-
attribute clustering, primary index, secondary
index, index selection, cover-tree, reduced cover-tree, tree-structure.
Copyright © 1981 by The Institute of
Electrical and Electronic Engineers, Inc. (IEEE).
Abstract used with permission.
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BibTeX
Printed Edition
Very Large Data Bases, 7th International Conference, September 9-11, 1981, Cannes, France, Proceedings.
IEEE Computer Society 1981
Contents BibTeX
References
- [1]
- ...
- [2]
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- Jean Le Bihan, Christian Esculier, Gérard Le Lann, Witold Litwin, Georges Gardarin, S. Sedillort, L. Treille:
SIRIUS: A French Nationwide Project on Distributed Data Bases.
VLDB 1980: 75-85 BibTeX
- [4]
- E. F. Codd:
A Relational Model of Data for Large Shared Data Banks.
Commun. ACM 13(6): 377-387(1970) BibTeX
- [5]
- ...
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- Alfonso F. Cardenas:
Analysis and Performance of Inverted Data Base Structures.
Commun. ACM 18(5): 253-263(1975) BibTeX
- [8]
- Mario Schkolnick:
The Optimal Selection of Secondary Indices for Files.
Inf. Syst. 1(4): 141-146(1975) BibTeX
- [9]
- ...
- [10]
- Henry D. Anderson, P. Bruce Berra:
Minimum Cost Selection of Secondary Indexes for Formatted Files.
ACM Trans. Database Syst. 2(1): 68-90(1977) BibTeX
Referenced by
- Patrick Valduriez, Georges Gardarin:
Join and Semijoin Algorithms for a Multiprocessor Database Machine.
ACM Trans. Database Syst. 9(1): 133-161(1984)
- Georges Gardarin, Patrick Valduriez, Yann Viémont:
Predicate Trees: An Approach to Optimize Relational Query Operations.
ICDE 1984: 439-444
- Michele Missikoff:
A Domain Based Internal Schema for Relational Database Machines.
SIGMOD Conference 1982: 215-224
BibTeX
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