[postgis-users] optimazing intersection

[toni hernández]

hi all,

I have to intersect lots of Multilinestrings so the process is very time 
consuming.
I thought that maybe with a tranlation (translate(geom, -400000,-600000) 
of the geometries (to get smaller numbers) it would increase speed but 
the truth is that the difference is not relevant.

Do you have any other suggestions to increase the intersection efficiency?

thanks .