Centuries ago, Nostradamus foresaw when peter_e(at)gmx(dot)net (Peter Eisentraut) would write:
> Jim C. Nasby wrote:
>> I thought we had agreed it would be a good idea to turn autovac_delay
>> on?
>
> We had not, because there was no experience available about where to put
> the default numbers.
I would also not because for Very Large Tables, the delay may make
vacuums run really inordinately long. And that becomes an "evil big
long-running transaction" to worsen things.
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Signs of a Klingon Programmer - 2. "Specifications are for the weak
and timid!"