On Thu, Mar 22, 2018 at 1:49 PM, <[email protected]> wrote: > Is there a possibility to downgrade Dspace 6.2 to Dspace-CRIS 5.8.1 ? >
It would definitely be a completely or partially manual process. You can see the upgrade migrations for postgres here: https://github.com/DSpace/DSpace/tree/master/dspace-api/src/main/resources/org/dspace/storage/rdbms/sqlmigration/postgres To downgrade, you would need to apply them "in reverse". Of course, if there are any destructive operations, there's no way to automatically reverse those. There's such an operation in the very first migration: DROP VIEW community2item; You would need to find CREATE VIEW community2item in one of the previous migrations (in this example, it's in V1.1__Initial_DSpace_1.1_database_schema.sql). I checked whether Flyway, the DB migration engine DSpace uses, supports downgrades. It seems it does, subject to the limitations I mentioned. I haven't tried it though and they mention it's available only in their Pro edition which I don't have any experience with. In any case, the Flyway route would only be a partial automation of the process. https://flywaydb.org/documentation/faq#downgrade Should you manage to downgrade the database successfully, you would continue as per normal DSpace 5 installation instructions. Then you would follow the DSpace-CRIS 5 installation instructions. Regards, ~~helix84 Compulsory reading: DSpace Mailing List Etiquette https://wiki.duraspace.org/display/DSPACE/Mailing+List+Etiquette -- You received this message because you are subscribed to the Google Groups "DSpace Technical Support" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/dspace-tech. For more options, visit https://groups.google.com/d/optout.
