Scott Bailey <artacus@comcast.net> writes:
> I added the following lines to my postgresql.conf file:
> custom_variable_classes = 'foo'
> foo.name = '1s'
> Now if I do "show foo.name" I get '1s'
> But it does not show up in show all or in pg_settings.
No, it doesn't. It should still work in set/show though.
> Also, can the variable be stored in a specific data type or am I stuck
> with text?
There's no data type associated with it. This is all an artifact of the
fact that this isn't a genuine designed-in feature, but a kluge that
someone shoehorned in. You should have to declare the variable in some
fashion...
regards, tom lane