[postgis-users] Adding new points to multipoints and new polygons to multipolygons

[Biddy]

Hi,

I'm very interested in knowing how to do this, too.
How is the usage of St_AddPoint to add a point to a Multipoint?
In http://postgis.refractions.net/documentation/manual-1.4/ch07.html  
it says it adds a point to a linestring.

Anybody any ideas?

Thanks,
B.