On 03/05/2014 09:39 AM, Bruce Momjian wrote:

So, I am going to ask a back-track question and ask why we can't move
hstore into core.  Is this a problem with the oids of the hstore data
type and functions?  Is this a pg_upgrade-only problem?  Can this be

Yes, pg_upgrade is the problem, and no, I can't see how it can be fixed.

Builtin types have Oids in a certain range. Non-builtin types have Oids outside that range. If you have a clever way to get over that I'd be all ears, but it seems to me insurmountable right now.

A year or two ago I made a suggestion to help avoid such problems in future, but as Josh said it got shot down, and in any case it would not have helped with existing types such as hstore.



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