On Jan 26, 2012, at 9:40 AM, Dimitri Fontaine wrote: > So I'm going to prepare the next version of the patch with this design: > > - in catalog extension scripts for inline extension > > pg_extension_script(extoid, oldversion, version, script) > > oldversion is null when create extension is used > unless when using the create extension from 'unpackaged' form
Would you keep all the migration scripts used over time to upgrade from one version to another? > - see about adding more control properties in the catalog? > > - current code that is parsing the filenames to determine the upgrade > path will have to be able to take the version strings from the new > catalog as an alternative, and getting to the script content must be > able to select from the catalog or read a file on disk > > - pg_dump defaults to not dumping extension content > > - pg_dump --include-extension-scripts dumps the scripts found either in > the filesystem or the catalog, a create script first then any number > of update script as needed to reach the current installed version > > - same as we have -t, add -e --extension to pg_dump so that you can > choose to dump only a given extension Also --exclude-extension? > The extension dumping will not include the shared modules, so if you > extension depend on them being installed on the server, you will be much > better served with some OS level packaging. Or must make sure it’s installed on the system before you restore. > Not for 9.2, but I can't help thinking that if we could manage to host > the .so module itself in the catalogs, we could solve updating it in a > transactional way and more importantly host it per-database, rather than > having the modules work per major version (not even per cluster) and the > extension mechanism work per-database inside each cluster. But that's > work for another release. +1 Cloud vendors will *love* this. Best, David -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
