Cosimo Streppone <[EMAIL PROTECTED]> writes:
> 1) What kind of performance gain can I expect switching from
>     7.1 to 7.4 (or 8.0)? Obviously I'm doing my own testing,
>     but I'm not very impressed by 8.0 speed, may be I'm doing
>     testing on a low end server...

Most people report a noticeable speedup in each new release; we hit
different things in different releases, but usually at least one
performance gain is useful to any one person.  For a jump as far as
from 7.1 to 8.0 I'm surprised that you're not seeing any gain at all.
What was your test case exactly?  Have you perhaps tuned your app
so specifically to 7.1 that you need to detune it?

                        regards, tom lane

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