[GRASSLIST:9503] dbf - v.in.ascii import

[Francesco Mirabella]

hi to all,
I have a problem with importing ascii points into grass:
I need to import a vector ascii map into grass, grass is connected to a
.dbf database. Following the manpage, it seems that the v.in.ascii
command is the same whatever is the database I want to connect to, so I
type:

#############################################
v.in.ascii input=ascii_file.txt output=prova_dbf fs=tab columns='cat integer, x double precision, y double precision, cdp_number varchar(20), line_name varchar(20), acquisition_year varchar(20)' x=2 y=3  cat=1
#############################################

but I get:
#############################################
DBMI-DBF driver error:
Incompatible value type.
Error in db_execute_immediate()

ERROR: Cannot insert values: insert into prova_ar_dbf values ( 1,
       11.919589, 43.679116, 101, 'ar315', 1981)
GRASS 6.0.1 (fogli_geo):~ >
#############################################

I think it is related to the names that I want for the columns of the
table, but I can't see what to do.

can someone help??

cheers,
Francesco