Re: BUG #8163: simultaneous nearly identical update queries execute extremely slowly

"Todd A. Cook" <tcook@blackducksoftware.com> writes:
> On 05/15/13 16:10, Tom Lane wrote:
>> Given the reference to EvalPlanQual in your stack trace, I'm thinking
>> the explanation is this 9.0 fix:

> Thanks for the explanation.  Is there any chance of that fix being backpatched
> into 8.4?

None whatsoever.  Aside from the mentioned change in semantics, there
were numerous followup fixes, which would be difficult to disentangle
from everything else that changed in 9.0.  We would not risk
destabilizing 8.4 like that.

8.4 is barely more a year from EOL anyway, so you really ought to be
thinking about an upgrade.

            regards, tom lane