On 02/04/2011 02:08 PM, Tom Lane wrote:
The extensions patch currently records that an object is part of an extension by making a pg_depend entry with deptype 'i' (INTERNAL). While that has the behavior we want, I wonder whether it wouldn't be smarter in the long run to invent a new deptype for this purpose. We do not want people confusing module membership with actual internal dependencies, particularly not if kluges like pg_extension_flag_dump are going to be around. (I'm currently feeling that that function isn't going to make it into the committed patch, but sooner or later there are likely to be similar operations.) The main objection I can see to a new deptype is that it might confuse client-side code that examines pg_depend. But adding all these internal dependencies that don't mean quite what other internal dependencies do would likely confuse such code in more subtle ways anyhow.
+1. I don't think we've ever promised not to invent new deptypes, nor should we.
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