Pass current zoomlevel to query parameter of PostgreSQL vector provider about tilestache HOT 3 OPEN

Hi shr3k,

Just wondering why having different layer definitions for different levels and changing the layers in js would not cut it...

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Mapnik has a "scale denominator" value that you can put in psql queries, would something like that work?

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Is it possible to pass anything back to Tilestache from the browser? My GeoJSON tiles are very large to the point it's slow to load them all at low zoom levels. I would like to be able to pass back say a layer_id that can then be used in the query to retrieve the GeoJSON data. It could be used to pass in zoom level as well.
Does this exist? Otherwise it's looking like I will need to have a few hundred layers defined in tilestache.cfg.

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