Horton

Re: ALTER EXTENSION UPGRADE, v3

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Aidan Van Dyk <aidan@highrise.ca>
Cc: "David E. Wheeler" <david@kineticode.com>, Dimitri Fontaine <dimitri@2ndquadrant.fr>, Itagaki Takahiro <itagaki.takahiro@gmail.com>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Date: 2011-02-02T23:42:56Z
Lists: pgsql-hackers 
Aidan Van Dyk <aidan@highrise.ca> writes:
> My concern with this approach (upgrade is forced through all
> intermetiary versions) is that the shared libray now for version 15
> *has* to have all the "intermediary" compatibility for *all* versions
> in it.  So it has to have functions with all symbols so the "CREATE
> ..." staements for all previous 15 versions can succeed.

Bear in mind though that the compatibility stubs only have to be stubs;
the C function needn't do anything except perhaps throw elog(ERROR).
This doesn't seem very onerous to me.

			regards, tom lane