A Performance Evaluation of Spatial Join Processing Strategies

  • Authors:
  • Apostolos Papadopoulos;Philippe Rigaux;Michel Scholl

  • Affiliations:
  • -;-;-

  • Venue:
  • SSD '99 Proceedings of the 6th International Symposium on Advances in Spatial Databases
  • Year:
  • 1999

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Abstract

We provide an evaluation of query execution plans (QEP) in the case of queries with one or two spatial joins. The QEPs assume R*-tree indexed relations and use a common set of spatial joins algorithms, among which one is a novel extension of a strategy based on an on-the-fly index creation prior to the join with another indexed relation. A common platform is used on which a set of spatial access methods and join algorithms are available. The QEPs are implemented with a general iterator-based spatial query processor, allowing for pipelined QEP execution, thus minimizing memory space required for intermediate results.