Re: regression, deadlock in high frequency single-row UPDATE

Alvaro Herrera wrote:
> Alvaro Herrera wrote:
>
> > I'm going to experiment with that idea and see if it leads to a
> > solution.  I tried the other idea yesterday (to keep the HW tuple lock
> > we acquire in heap_lock_tuple until heap_update is done) but aside from
> > being very complicated and bug-prone, it doesn't solve the problem
> > anyway.
>
> Here's a preliminary patch.

Here's a finished version of this patch, which I messed a bit with and
so needs some extra testing.  I want to push this shortly and backpatch
to 9.4 and 9.3.  I don't want to disrupt the 9.4.0 release next week,
but it'd be nice not to ship it with this bug.

--
Álvaro Herrera                http://www.2ndQuadrant.com/
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