Find the nearest points along the linestring in specified distance limit and order

Question

I have such problem and I would be nice If somebody can help me. I have points table with GIST index. Those points don\'t change in time.

I would like to fetch point

Answer 1

It sounds like you could benefit from the KNN-GIST feature from last summer's PostgreSQL 9.1 release and supported by PostGIS version 2.0.

http://blog.opengeo.org/2011/09/28/indexed-nearest-neighbour-search-in-postgis/