Re: Connections hang indefinitely while taking a gin index's LWLockbuffer_content lock

On Fri, Mar 22, 2019 at 11:05 AM Alexander Korotkov
<aekorotkov@gmail.com> wrote:
> On Fri, Mar 22, 2019 at 12:06 AM Alvaro Herrera
> <alvherre@2ndquadrant.com> wrote:
> > On 2019-Mar-21, Alexander Korotkov wrote:
> >
> > > However, I think this still can be backpatched correctly.  We can
> > > determine whether xlog record data contains deleteXid by its size.
> > > See the attached patch.  I haven't test this yet.  I'm going to test
> > > it.  If OK, then push.
> >
> > Wow, this is so magical that I think it merits a long comment explaining
> > what is going on.
>
> Yeah, have to fo magic to fix such weird things :)
> Please, find next revision of patch attached.  It uses static
> assertion to check that data structure size has changed.  Also,
> assertion checks that record data length match on of structures
> length.

I'm going to backpatch this on no objections.

------
Alexander Korotkov
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company