After thinking about it more I am actually unsure what the intent is. I looked at the spec and couldn't find a definitive answer so I went to the wfs-dev list.
-Justin Andrea Aime wrote: > Justin Deoliveira ha scritto: >> Hi all, >> >> The reason for my last question about BinarySpatialOperator was this filter: >> >> <Filter> >> <Intersects> >> <PropertyName /> >> <Envelope> >> ... >> </Envelope> >> </Intersects> >> </Filter> >> >> Note the empty property name. How i need to interpret this is as run the >> intersection against every geometric attribute in the type. > > Oh the horror... so this is the official WFS commitee answer? > Bwhaaa, this means to have decent performance we'll have to specify > which geometry property we want do deal with. > Happily enough most databases are now able to do multi index access > and bitmap operations among them before accessing real data, but not > every db is able to do so (I suspect MySql and embedded ones do not > cover this functionality, Postgres got it only in version 8.0 or 8.1 > afaik...) > > Cheers > Andrea > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys - and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > Geoapi-devel mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/geoapi-devel > > !DSPAM:1004,45797c79225812207481331! > -- Justin Deoliveira [EMAIL PROTECTED] The Open Planning Project http://topp.openplans.org ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Geotools-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-devel
