[Mapserver-dev] Query efficiency

Sean Gillies sgillies at frii.com
Wed Mar 3 00:14:49 EST 2004

By query caching do you mean the result of a query would be a set of 
rather than a set of shapeindexes?


On Mar 2, 2004, at 9:09 PM, Steve Lime wrote:

> Hi guys: The issue of query efficiency keeps coming up these days as
> queries are not simply a means to an end. SVG, image maps etc... are
> going to push the current code, especially with non-shapefile
> datasources. I/we need to figure out a way to cache shapes that are 
> part
> of a query result set. We could use the inline feature structures to do
> this but I worry about huge result sets, and/or could consider
> serializing shapes to some high performance format. There are some
> interesting possibilities with the latter. Query caching could be made
> very efficient (e.g. queryfile/savequery CGI options) and that format
> could be useful for regular layers too, kind of like the gd2 format.
> What do folks think?
> Steve
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