David Rowley writes:
> I'm reasonably happy with the patch now, the only small niggles are maybe
> the Assert() is probably not so much needed as transformLimitClause() seems
> to coerce to int8 anyway, and recompute_limits() does not bother with the
> Assert() when it does the same thing, either
On Mon, Oct 27, 2014 at 1:56 AM, Marti Raudsepp wrote:
> On Wed, Oct 22, 2014 at 1:37 PM, David Rowley
> wrote:
> > I've had a bit of a look at this and here's a couple of things:
>
> Thanks. Sorry I didn't back to you earlier, I almost forgot about the
> review.
>
> > /*
> > +*
On Wed, Oct 22, 2014 at 1:37 PM, David Rowley wrote:
> I've had a bit of a look at this and here's a couple of things:
Thanks. Sorry I didn't back to you earlier, I almost forgot about the review.
> /*
> +* LIMIT clause can be removed if it's a positive constant or ALL, to
> +
On Tue, Oct 21, 2014 at 11:00 PM, Marti Raudsepp wrote:
> On Sun, Oct 19, 2014 at 1:22 PM, David Rowley
> wrote:
> > the argument for this would
> > have been much stronger if anti join support had just been added last
> week.
> > It's been quite a few years now and the argument for this must be
Hi
Thanks for taking a look.
On Sun, Oct 19, 2014 at 1:22 PM, David Rowley wrote:
> the argument for this would
> have been much stronger if anti join support had just been added last week.
> It's been quite a few years now and the argument for this must be getting
> weaker with every release.
On Fri, Oct 3, 2014 at 10:41 AM, Marti Raudsepp wrote:
> Hi list,
>
> Attached patch allows semijoin/antijoin/hashed SubPlan optimization
> when an EXISTS subquery contains a LIMIT clause with a positive
> constant. It seems to be a fairly common meme to put LIMIT 1 into
> EXISTS() subqueries, an
Hi list,
Attached patch allows semijoin/antijoin/hashed SubPlan optimization
when an EXISTS subquery contains a LIMIT clause with a positive
constant. It seems to be a fairly common meme to put LIMIT 1 into
EXISTS() subqueries, and it even makes sense when you're not aware
that the database alread
