Tomas Vondra wrote
> I mean, when we use database A as a template, why do we need to checkpoint
> B, C, D and F too? (Apologies if this is somehow obvious, I'm way out of
> my comfort zone in this part of the code.)
IIUC you have to checkpoint the whole cluster because it is not possible to
do checkpoint individual databases. There is only a single WAL stream and
while it could have source database markers I don't believe it does so there
is no way to have separate checkpoint locations recorded for different
databases.
Adding such seems to introduce a lot of book-keeping and both reload and
file size overhead for little practical gain.
David J.
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