Characterizing memory requirements for queries over continuous data streams

  • Authors:
  • Arvind Arasu;Brian Babcock;Shivnath Babu;Jon McAlister;Jennifer Widom

  • Affiliations:
  • Stanford University, Stanford, CA;Stanford University, Stanford, CA;Stanford University, Stanford, CA;Stanford University, Stanford, CA;Stanford University, Stanford, CA

  • Venue:
  • Proceedings of the twenty-first ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
  • Year:
  • 2002

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Abstract

We consider conjunctive queries with arithmetic comparisons over multiple continuous data streams. We specify an algorithm for determining whether or not a query can be evaluated using a bounded amount of memory for all possible instances of the data streams. When a query can be evaluated using bounded memory, we produce an execution strategy based on constant-sized synopses of the data streams.