jeff(at)pgexperts(dot)com writes:
> permtest=# create extension dblink;
> CREATE EXTENSION
> permtest=# grant EXECUTE on FUNCTION dblink(text) to permtestuser;
> GRANT
I see no bug here. This is not different from any other
property-alteration you might do on an extension member object.
We allow that (if you have privileges), but it's up to you to keep it
in sync with the extension definition file.
regards, tom lane