Jason Culverhouse <Jason(at)Mischievous(dot)org> writes:
> I have a vacuum process that has been running on a table for the past 20 days.
> The server is postgres 8.3 on ubuntu linux.
> Can I safely kill the vacuum with:
> select pg_cancel_backend(26433)
20 days is a long time. Is it actually running, or blocked on a lock?
If not blocked, I have to guess that you've chosen very poor vacuum
regards, tom lane
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