Document Type

Technical Report

Department

Computer Science and Engineering

Publication Date

1996-01-01

Filename

WUCS-96-27.PDF

Technical Report Number

WUCS-96-27

Abstract

Distributed stream filtering is a mechanism for implementing a new class of real-time applications with distributed processing requirements. These applications require scalable architectures to support the efficient processing and multiplexing of large volumes of continuously generated data. This paper provides an overview of a stream-oriented model for database query processing and presents a supporting implementation. To facilitate distributed stream filtering, we introduce several new query processing operations, including pipelined filtering that efficiently joins and eliminates duplicates from database streams and a new join method, the progressive join, that joins streams of tuples. Finally, recognizing that the stream-oriented model results in performance tradeoffs that differ significantly from those in traditional databases, we present a new query optimization strategy specifically designed for stream-oriented databases.

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Permanent URL: http://dx.doi.org/10.7936/K7T43RBS

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