[postgis-users] Does ST_AsText truncate or round

[Mark Cave-Ayland]

Håvard Tveite wrote:
> ST_GeomFromText(ST_AsText(geom)) != geom
> 
> sounds like a bug to me (ignoring the SRS).
> 
> Håvard

No, since the SFS 1.1 specification supports only 2 dimensions with no 
SRS (and ST_AsText() is spec compliant). If you need the SRS then you 
should use the PostGIS-enhanced ST_EWKT() function which will output the 
extra information, but is not spec-compliant.


ATB,

Mark.

-- 
Mark Cave-Ayland
Sirius Corporation - The Open Source Experts
http://www.siriusit.co.uk
T: +44 870 608 0063