Re: page corruption on 8.3+ that makes it to standby

Jeff Davis <pgsql@j-davis.com>

From: Jeff Davis <pgsql@j-davis.com>
To: Robert Haas <robertmhaas@gmail.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, pgsql-hackers@postgresql.org
Date: 2010-07-28T19:08:02Z
Lists: pgsql-hackers
On Wed, 2010-07-28 at 14:50 -0400, Robert Haas wrote:
> It seems like if log_newpage() were to set the LSN/TLI before calling
> XLogInsert() - or optionally not - then it wouldn't be necessary to
> set them also in heap_xlog_newpage(); the memcpy operation would by
> definition have copied the right information onto the page.  That
> seems like it would be a cleaner design, but back-patching a change to
> the interpretation of WAL records that might already be on someone's
> disk seems dicey at best.

How do you set the LSN before XLogInsert()?

Regards,
	Jeff Davis