Very cool. Now we just need to find a way to use it. I thought about it earlier but I didn't see a way to make mapnik use it so left it.
Have a nice day, On Sun, Mar 14, 2010 at 4:47 PM, Sven Geggus <li...@fuchsschwanzdomain.de> wrote: > Hello, > > I just commited a patch for osm2pgsl for optional generation of a > hstore column (hstore new). > > For those of you who don't know about hstore colums yet: > > Hstore is for sets of key/value pairs. As associative array datatype, > just like a hash in perl or dictionary in python. > > This should come in handy especialy for rarely used tags. > > Using hstore one can use any tag in sql queries like this: > > gis=> select count(*) FROM planet_osm_point where ((tags->'man_made') = > 'tower'); > count > ------- > 447 > (1 Zeile) > > Indexes can be added to hstores as well. > > Currently the patch has not been tested in conjunction with > incemental database updates. > > Regards > > Sven > > > -- > "Those who do not understand Unix are condemned to reinvent it, poorly" > (Henry Spencer) > > /me is gig...@ircnet, http://sven.gegg.us/ on the Web > > _______________________________________________ > dev mailing list > dev@openstreetmap.org > http://lists.openstreetmap.org/listinfo/dev > -- Martijn van Oosterhout <klep...@gmail.com> http://svana.org/kleptog/ _______________________________________________ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
