Greetings, * Tomas Vondra (tomas.von...@2ndquadrant.com) wrote: > On Wed, Jul 10, 2019 at 04:11:21PM -0400, Alvaro Herrera wrote: > >On 2019-Jul-10, Bruce Momjian wrote: > > > >>Uh, what if a transaction modifies page 0 and page 1 of the same table > >>--- don't those pages have the same LSN. > > > >No, because WAL being a physical change log, each page gets its own > >WAL record with its own LSN. > > > > What if you have wal_log_hints=off? AFAIK that won't change the page LSN.
Alvaro suggested elsewhere that we require checksums for these, which would also force wal_log_hints to be on, and therefore the LSN would change. Thanks, Stephen
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