Re: [PERFORM] encouraging index-only scans

On 2014-02-11 12:12:13 -0500, Bruce Momjian wrote:
> Yes, that pretty much sums it up.  We introduced index-only scans in 9.2
> (2012) but they still seem to be not usable for insert-only workloads
> two years later.  Based on current progress, it doesn't look like this
> will be corrected until 9.5 (2015).  I am kind of confused why this has
> not generated more urgency.

I think this largely FUD. They are hugely beneficial in some scenarios
and less so in others. Just like lots of other features we have.

Greetings,

Andres Freund

-- Andres Freund                       http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training &
Services