reading WKB geometry

Hi list,

I've been looking around trying to solve this problem; unfortunately I 
haven't found a way to solve it.
I have a database with sampling points with an associated sampling 
date and would like to plot the density of sampling points on a 
monthly basis for one year using spplot. However, I need to query the 
database and import the result of the query into R to visualize the 
data. I can import the query on a column-wise basis but the WKB data 
are imported as chars into R (as expected). Is there a way by which I 
could read these data (WKB geometry) once imported into R? Or is there 
a way by which ReadOGR can read the outcome of the query?
I tried creating a temporary table through the query, but it seems 
that ReadOGR can't read it.

Thanks for your help,

Jaime

As an example:

db.execute("select geo.id as id,geo.wkb_geometry as geom from wells 

as geo, gwhead as h where geo.id=h.id and 
date_part('year',h.date)=2001 and h.gwhead<700",clear=F)

ids<-db.read.column("id",as.is=F)
geom<-db.read.column("geom",as.is=F)

Warning message:
In rpgsql.cast.values.default(data.col) :
 Coercing PGSQL type 16437 to character

geom

 [1] "0101000020FF7F00000000000088FD2141000000C09BB95741"
 [2] "0101000020FF7F00000000000088FD2141000000C09BB95741"
 [3] "0101000020FF7F00000000000088FD2141000000C09BB95741"
 [4] "0101000020FF7F00000000000088FD2141000000C09BB95741"
 [5] "0101000020FF7F00000000000088FD2141000000C09BB95741"