Re: Re: Insert/Dump/Restore table with generated columns

Hi David,

thanks for you're quick answer.
I'am using postgres 12 and also tested with 13. Both inside the official (debian based) docker hub hosted container.

After you're answer I did a few investigations. If I insert data with a single insert, everything is working like
expected

INSERT INTO public.ab VALUES (1, DEFAULT);

this changes if I do multiple inserts in one statement:

INSERT INTO public.ab VALUES (1, DEFAULT), (2, DEFAULT);
ERROR:  cannot insert into column "b"
DETAIL:  Column "b" is a generated column.

Is this a bug or a feature?

In my specific backup case I exported the data with the flags: --column-inserts, --inserts and --rows-per-insert=1000.
Dueto the latter I ran into the behaviour described obove.
 
If I export the data with the default copy statement, no problems occur.

Greetings