Re: Minmax indexes

On Fri, November 8, 2013 21:11, Alvaro Herrera wrote:
>
> Here's a version 7 of the patch, which fixes these bugs and adds
> opclasses for a bunch more types (timestamp, timestamptz, date, time,
> timetz), courtesy of Martín Marqués.  It's also been rebased to apply
> cleanly on top of today's master branch.
>
> I have also added a selectivity function, but I'm not positive that it's
> very useful yet.
>
> [minmax-7.patch]

The earlier errors are indeed fixed; now, I've been trying with the attached test case but I'm unable to find a query
that
improves with minmax index use.  (it gets used sometimes but speedup is negligable).

That probably means I'm doing something wrong; could you (or anyone) give some hints about use-case would be expected?

(Or is it just the unfinished selectivity function?)


Thanks,

Erikjan Rijkers