[postgis-users] 3-D coordinates

[John Taber]

I'm somewhat surprised I don't see much on 3-d coordinates (ie New 
Orleans was an elevation issue) but if there are others using 3-d 
coordinates, how are you handling the elevation coordinate.  We 
previously had our data in an object data file using a point object that 
had x,y,z fields - I guess we could duplicate that in a postgres table 
or use the eWRT in a geometry column.  Any experiences ?