> On Sep 9, 2025, at 10:27 AM, Ellen Allhatatlan <ellenallhatatlan@xxxxxxxxx> wrote: > > Reading this article > https://firebirdsql.org/migrating-from-firebird-to-postgresql-what-can-go-wrong- > I'm a bit confused (not the first time...) > > In part 1. Differences in MVCC implementation - he's saying that "It’s > not that the PostgreSQL implementation of MVCC is bad — it’s just > fundamentally different" > > But, I thought Firebird had SWEEP instead of VACUUM (how much closer > can the words be?) and that FB's implementation of MVCC was > essentially similar. > Is this correct? Then why is he pointing out the performance diffs > because of MVCC? I'm puzzled! > > > -- > > El! > It is written by someone @firebirdsql.org so one assumes a few grains of salt necessary. >
