[postgis-users] ST_Intersection very slow

Rémi Cura remi.cura at gmail.com
Wed Feb 25 00:11:25 PST 2015


Damn I'm publishing a QGIS plugin for POstGIS,
I can't write you the fast intersection by casting polygon to points,
intersection then casting back to polygon.
I'll try to squeeze it somehow.
Cheers,
Rémi-C

2015-02-25 1:44 GMT+01:00 Mark Wynter <mark at dimensionaledge.com>:

> The land cover data you’re working with - does it come as a raster?   We
> need a strategy for busting up that single, monolithic poly with lots of
> holes.
> If its a raster, then I think that tiling on import would be of huge
> benefit.
> I’m just under the pump the next few days.
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