Spatial operators

Eliseo Clementini, Paolino Di Felice
2000 SIGMOD record  
This paper discusses issues related to the integration of spatial operators into the new generation of SQL-like query languages. Starting from spatial data models, current spatial extensions of query languages are brie y reviewed and research directions are highlighted. A taxonomy of requirements to be satis ed by spatial operators is proposed with emphasis on users' needs and on the introduction of data uncertainty s u p p o r t . F urther, spatial operators are classi ed into the three
more » ... nt categories of topological, projective, and metric operators and for each of them the state of the art is outlined.
doi:10.1145/362084.362101 fatcat:vfy3fqwd2bgw7aojbgqg6xjkhi