On 03/21/2012 10:47 AM, Alvaro Herrera wrote:
Excerpts from Tom Lane's message of miƩ mar 21 11:35:54 -0300 2012:

Now that would all be fine if this were a widely-desired feature, but
AFAIR the user demand for it has been about nil.  So I'm leaning to
the position that we don't want it.
I disagree with there being zero interest ... the "order by random()"
stuff does come up occasionally.

Presumably the reason that's not good enough is that is scans the whole table (as well as being non-portable)? Maybe we could find some less invasive way of avoiding that.



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