Re: Delay locking partitions during INSERT and UPDATE

On Fri, Feb 1, 2019 at 9:16 AM David Rowley
<david.rowley@2ndquadrant.com> wrote:
> On Sat, 2 Feb 2019 at 03:07, Robert Haas <robertmhaas@gmail.com> wrote:
> > I'm now wondering whether the same issues discussed in
> > https://www.postgresql.org/message-id/CA%2BTgmoZN-80143F8OhN8Cn5-uDae5miLYVwMapAuc%2B7%2BZ7pyNg%40mail.gmail.com
> > also need discussion with respect to this patch.  But I haven't
> > thought about it very hard, so I'm not sure whether they do or don't.
>
> I really don't think it does, or if it does then the code is already
> broken as it is now.
>
> As the code is today, we obtain the locks well after the plan is
> locked in.  The only difference with this patch is that we do the
> locking on routing tuples to the partition for the first time rather
> than do them all at once when setting up the routing data structure.

OK, that is what I thought yesterday, and then I was just doubting
myself.  Thanks for thinking about it.

-- 
Robert Haas
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