Updated Optimize Rendering with PostGIS (markdown)
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@ -155,7 +155,7 @@ SQL to the rescue! Let's have postgresql roll all those choices into 1 simple on
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from planet_osm_line where highway is not null) as foo
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```
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The query is split over multiple lines so it's easy to see what's going on. You can also split your own queries into multiple lines in the stylesheet (Mapnik 0.6.0 > | see #173), if it helps you to understand long queries.
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The query is split over multiple lines so it's easy to see what's going on. You can also split your own queries into multiple lines in the stylesheet (Mapnik 0.6.0 > | see [#173](https://github.com/mapnik/mapnik/issues/173)), if it helps you to understand long queries.
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Now you can replace the two filters with these:
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