On Thu, 2010-03-18 at 14:29 +0530, Gokulakannan Somasundaram wrote:
> If you want it to be cheaply updatable (or even cheaply
> readable),
> compression is not what you're going to do.
>
> regards, tom lane
>
>
>
> +1..
The visibility map itself is already an example of compression. If
visibility information were randomly distributed among tuples, the
visibility map would be nearly useless.
Regards,
Jeff Davis
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