"David G. Johnston" <[email protected]> writes:
> On Thu, May 7, 2015 at 4:19 PM, Tom Lane <[email protected]> wrote:
>> pg_upgrade is okay in any case because it dumps and reloads the current
>> extension's components. Doesn't matter whether there's another version
>> that is not compatible.
> âFor clarity - which one is "current" in this context?
> 1. The existing database's (previous extension version)
> 2. The target database's (current default extension version in the new
> PostgreSQL version)
> âThe answer has to be #2 since the version in the existing database no
> longer exists in the new PostgreSQL version.
You're mistaken. pg_dump --binary_upgrade does not care whether the
target database thinks that version exists or not. (It does care that
there's a compatible shared-library object, but that's not at issue
in this case.)
regards, tom lane
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