On Thu, Jun 17, 2021 at 2:50 PM Heikki Linnakangas <hlinn...@iki.fi> wrote: > > On 17/06/2021 08:45, Dilip Kumar wrote: > > Another problem with directly scanning the directory is, how we > > are supposed to get the "relpersistence" which is stored in pg_class > > tuple right? > > You only need relpersistence if you want to use the buffer cache, right? > I think that's a good argument for not using it.
Yeah, that is the one place, another place I am using it to decide whether to WAL log the new page while writing into the target relfilenode, if it is unlogged relation then I am not WAL logging. But now, I think that is not the right idea, during creating the database we should WAL log all the pages irrespective of whether the table is logged or unlogged. -- Regards, Dilip Kumar EnterpriseDB: http://www.enterprisedb.com
