table name

sorry if my question is tooo simple :-)

I got a shapefile from the french gov.
I import it with postgis 3.01 utility.
fine !
the table created by this utility is named regions-20180101
with the dash in the middle.
I see that table name in pg_class, and, also, in the geometry_columns view.

obviously if I ask:
select * from regions-20180101;
I get a syntax error.
if I try select * from $$regions_20180101$$;
I get another syntax error.
If I try to rename that table, same thing.
if I try a cte, same thing.

What should I do ?

thanks,

Marc MILLAS
Senior Architect
+33607850334
www.mokadb.com