[OSM-dev] Determining if two linestrings are "similar"

Martin Schafran martin at ampelmeter.com
Fri Jan 4 14:12:25 GMT 2013

> You can create a buffer (with ST_Buffer) around one geometry and then ..

> is a rather expensive operation, so it might be too slow for your use.

do prefilter result set by bbox to speed up 

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