Re: [HACKERS] heap page corruption not easy

[Hiroshi Inoue]

"Mikheev, Vadim" wrote: > > > The point is, that the heap page is only modified in places that were > > previously empty (except header). All previous row data stays exactly > > in the same place. Thus if a page is only partly written > > (any order of page segments) only a new row is affected. > > Exception: PageRepairFragmentation() and PageIndexTupleDelete() are > called during vacuum - they change layout of tuples. > Is it guaranteed that the result of PageRepairFragmentation() has already been written to disk when tuple movement is logged ? Regards. Hiroshi Inoue