Alvaro Herrera wrote:
Tom Lane wrote:

Actually the reason it's not enabled by default today has nothing to do
with either of those; it's

3. Unexpected side effects on foreground processes, such as surprising
failures of DROP DATABASE commands.  (See archives for details.)

Until (3) is addressed I don't think there is any chance of having
autovac on by default, and so worrying about (1) and (2) seems a bit
premature.  Or at least, if you want to work on those fine, but don't
expect that it will alter the fact that the factory default is "off".

With that taken care of, do I dare propose enabling autovacuum by
default, so that further changes will be picked up quickly by the

I should have thought most autovacuum problems would only become evident after significant running time, while buildfarm runs are quite short.

Of course, some will be apparent right away.



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