Neil Conway <[EMAIL PROTECTED]> writes:
> What does everyone think about adding self-tuning histograms
> to PostgreSQL?
> [ snip ]
> I think that ST histograms would be useful because:
> (1) It would make it easier for us to implement multi-dimensional
> histograms (for more info, see the Abo
On Thu, 30 May 2002 13:52:08 +1000 (EST)
"Gavin Sherry" <[EMAIL PROTECTED]> wrote:
> On Wed, 29 May 2002, Neil Conway wrote:
> > Histogram refinement can take place in two possible ways: online
> > (as queries are executed, the histograms are updated immediately),
> > or offline (the necessary dat
Neil,
I've also been thinking about this but haven't had time to collect my
thoughts.
On Wed, 29 May 2002, Neil Conway wrote:
> Histogram refinement can take place in two possible ways: online
> (as queries are executed, the histograms are updated immediately),
> or offline (the necessary data
What does everyone think about adding self-tuning histograms
to PostgreSQL?
Briefly, a self-tuning histogram is one that is constructed without
looking at the data in the attribute; it uses the information provided
by the query executor to adjust a default set of histograms that are
created when
