Well, today seems to be a day of goodbyes.
About six months ago I had wished that we had opted for PostgreSQL as our database backend instead of Oracle, and I'm happy to say that the wish has been granted. Not exactly granted, because moi had a say in pushing for a move away from Oracle and towards Postgres, but I'm not complaining. Our enterprise app has been migrated to PostgreSQL without any hitches. Hibernate and minimal reliance of Oracle-specific features probably contributed a lot to this.
Having worked with Oracle for practically all my professional career, there is an element of bittersweetness about the whole thing (not to mention an erosion of my Oracle skillsets value), but open source is open source, baby.