Re: Potential stack overflow in incremental base backup

On Wed, Apr 10, 2024 at 6:21 AM Thomas Munro <thomas.munro@gmail.com> wrote:
> Could we just write the blocks directly into the output array, and
> then transpose them directly in place if start_blkno > 0?  See
> attached.  I may be missing something, but the only downside I can
> think of is that the output array is still clobbered even if we decide
> to return BACK_UP_FILE_FULLY because of the 90% rule, but that just
> requires a warning in the comment at the top.

Yeah. This approach makes the name "relative_block_numbers" a bit
confusing, but not running out of memory is nice, too.

--
Robert Haas
EDB: http://www.enterprisedb.com