04.07.2025 11:31, Andrey Borodin wrote: > > >> On 2 Jul 2025, at 18:38, Maxim Orlov <orlo...@gmail.com> wrote: >> >> If you >> know of any real problems, please tell me > > If I understood correctly, pages can differ on primary and standby. That > might be problematic for WAL debug tests.
They may differ. They differ even now. It is normal. That is why when you enable "wal_consistency_checking" (developer option, not present in sample postgresql.conf), pages are masked: allowed to be different pieces are zeroed (pages hint bits, tuple hint bits, space between pd_lower and pd_upper). Before last version, empty space between tuples with "repair_fragmentation=false" was certainly possible source of difference not masked by standard mask procedure. But now those holes are zeroed. -- regards Yura Sokolov aka funny-falcon
