Where do COMMENTs on columns go?

According to the documentation for COMMENT, it puts a comment on
object "that can be easily retrieved with psql's \dd command."

Examples like

    COMMENT on table mytable is 'foo';
    COMMENT on column mytable.mycolumn is 'bar';

are given.

However, while I have been able to see the results of the first
example with

    \dd mytable

I have not been able to get \dd to show the comments on the
individual columns.

Can someone tell me how to do that?

I am running postgresql-7.0.2.

Thanks,

Nan Ellman

PS Please email any replies to me directly.