Re: [BUGS] BUG #6425: Bus error in slot_deform_tuple

On Sat, Feb 4, 2012 at 6:49 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Simon Riggs <simon(at)2ndquadrant(dot)com> writes:
>> The cause here is data changing underneath the user. Your patch solves
>> the most obvious error, but it still allows other problems if applying
>> the backup block changes data. If the backup block doesn't do anything
>> at all then we don't need to apply it either.
>
> This is nonsense.  What applying the backup block does is to apply the
> change that the WAL record would otherwise have applied, except we
> decided to make it store a full-page image instead.

Yep, you're right, my bad.

Got a head cold, so will lay off a few days from too much thinking.

--
 Simon Riggs                   http://www.2ndQuadrant.com/
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