Re: Inaccuracy in VACUUM's tuple count estimates

On 2014-06-09 10:14:32 -0400, Robert Haas wrote:
> On Fri, Jun 6, 2014 at 3:44 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> > It did not use to blow this question off: back around 8.3 you got
> > DELETE_IN_PROGRESS if the tuple had a delete pending. I think we need
> > less laziness + fuzzy thinking here. Maybe we should have a separate
> > HEAPTUPLE_INSERT_AND_DELETE_IN_PROGRESS result code? Is it *really*
> > the case that callers other than VACUUM itself are okay with failing
> > to make this distinction?
>
> I think that would be a good idea for conceptual clarity if nothing
> else. If callers are OK with it, then they can treat both of those
> codes alike; but then at least there's clear evidence as to the
> author's intent.

I am happy to introduce the code for that. But it'd have to be >=9.4 or
> 9.4?

Greetings,

Andres Freund

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Andres Freund http://www.2ndQuadrant.com/
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