> What about a situation where someone would have lazy vacuums cron'd and
> it takes longer to complete the vacuum than the interval between
> vacuums. You could wind up with an ever increasing queue of vacuums.
>
> Erroring out with a "vacuum already in progress" might be useful.
I have seen this many times with customers as their traffic on the
database grows. A simple check would be of great, great use.
Sincerely,
Joshua D. Drake
>
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