Re: More stable query plans via more predictable column statistics

Hi,

On 02/08/2016 03:01 PM, Shulgin, Oleksandr wrote:>
...
>
> I've incorporated this fix into the v2 of my patch, I think it is
> related closely enough.  Also, added corresponding changes to
> compute_distinct_stats(), which doesn't produce a histogram.

I think it'd be useful not to have all the changes in one lump, but 
structure this as a patch series with related changes in separate 
chunks. I doubt we'd like to mix the changes in a single commit, and it 
makes the reviews and reasoning easier. So those NULL-handling fixes 
should be in one patch, the MCV patches in another one.

regards

--
Tomas Vondra                  http://www.2ndQuadrant.com
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