On Dec 10, 2010, at 2:55 PM, Dimitri Fontaine wrote:

> Tom Lane <t...@sss.pgh.pa.us> writes:
>> If we assume the target is the current version, then we only need the
>> old-version number in the file name, so it doesn't matter how many
>> parts it has.
> 
> IIUC, that puts even more work on the shoulders of the extension
> authors, because the file named foo-1.12.sql is the one used to upgrade
> from 1.12. That means that at each release, it's a different file
> content, it's there to upgrade to a newer release.

Yeah, it should be *to* 1.12. FWIW, this is how Bricolage upgrade scripts are 
handled: version-string-named directories with the appropriate scripts to 
upgrade *to* the named version number.

> So, we have a sound proposal for the ALTER EXTENSION UPGRADE command,
> which comes later. So we keep version numbers in the CREATE EXTENSION
> patch and the control files, and remove the facility to get this number
> from the Makefile. Is that right?

Yes. No new variables in Makefile at all IIUC.

Best,

David


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