* Simon Riggs (simon@2ndQuadrant.com) wrote: > On 7 May 2016 at 16:14, Stephen Frost <sfrost@snowman.net> wrote: > > > If we don't lock it then we will have a inconsistent dump that will fail > > > later, if dumped while an object is being dropped. > > > Do we want an inconsistent dump? > > > > The dump won't be inconsistent, as Tom pointed out. The catalog tables > > are read using a repeatable read transaction, which will be consistent. > > The scan is consistent, yes, but the results would not be.
I'm not following- the results are entirely dependent on the scan, so if the scan is consistent, how could the results not be?
Objects would no longer exist because of concurrent DROPs.
You agreed before, why did you change?
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Simon Riggs http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services