On 06/05/17 01:37, Tom Lane wrote:
> I've written $SUBJECT ... you can find them at
>
> https://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=54dbd4dc78b045ffcc046b9a43681770c3992dd4
>
Hmm, the 2bef06d51 and 56e19d938 are fixes for different bugs, we can
keep them together since result of both is corrupted snapshot, but the
description can't just mangle pieces of text from different commits
together like this as that's misleading.
The 2bef06d51 is about not preserving global xmin correctly, window for
that is indeed small. But the 56e19d938 was about using ondisk snapshot
(which only contain transactions changing catalogs) as full snapshots,
it's more about creating multiple logical replication slots while
concurrent writes happen.
-- Petr Jelinek http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training &
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