It is easy to create such a table:
> I would like to have tables with tens of millions of records if possible.
test=# create table huge_data_table as select s, md5(s::text) from generate_series(1,10) s;
Thanks I'll try something like that.
I guess can create some random dates or something for other types of fields too.
I was hoping there was already something like this available though because it's going to take some time to create relations and such.