Matthias Apitz <guru(at)unixarea(dot)de> writes:
> During unload trailing blanks in all columns are discarded, because they
> would cause problems during loading for INT and DATE columns.
Really?
regression=# select '123 '::int;
int4
------
123
(1 row)
regression=# select '12-02-2019 '::date;
date
------------
2019-12-02
(1 row)
regards, tom lane