Re: Extensions versus pg_upgrade

Dimitri Fontaine <dimitri@2ndQuadrant.fr> writes:
> Tom Lane <tgl@sss.pgh.pa.us> writes:
>> Actually, it occurs to me that the need for ALTER EXTENSION DROP could
>> be upon us sooner than we think.  The cases where an extension upgrade
>> script would need that are
>> (1) you want to remove some deprecated piece of the extension's API;
>> (2) you want to remove some no-longer-needed internal function.
>> Without ALTER EXTENSION DROP it's flat out impossible to do either.

> What if you just DROP FUNCTION in the upgrade script?

That would be rejected because you're not allowed to drop an individual
member object of an extension.  (And no, I don't want to have a kluge in
dependency.c that makes that test work differently when
creating_extension.)
        regards, tom lane