Bruce Momjian wrote:
>   o  Automatic adjustment of bgwriter_lru_maxpages 
>      We show this as waiting for performance results.  I am thinking we
>      should hold this for 8.4.

Agreed. I spent close to a week trying different benchmarks and
configurations and simple test cases on a test server and my laptop, and
couldn't demonstrate bgwriter making a positive impact in any
configuration I tried. The theory behind the patch is sound, but it
looks like a lot more testing and analysis is needed.

>   o  Error correction for n_dead_tuples
>      This shows as waiting on another patch.  Again, I am thinking to
>      keep it for 8.4.

It was waiting on the "vacuum oldestxmin" patch, which didn't make it to
8.3. I don't care for the patch myself, but it was submitted well before
feature freeze and deserves a review. It looks good to me at first glance.

  Heikki Linnakangas

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