Re: One process per session lack of sharing

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От Jan Wieck
Тема Re: One process per session lack of sharing
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Msg-id CAGBW59cdfocRGYTTzri7mOKKORqhFku16RSGsBjt6sXYp575=A@mail.gmail.com
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Ответ на Re: One process per session lack of sharing  (Craig Ringer <craig@2ndquadrant.com>)
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On Sun, Jul 17, 2016 at 3:23 AM, Craig Ringer <craig@2ndquadrant.com> wrote:


Lots more could be shared, too. Cached plans, for example.

But the fact that PostgreSQL has transactional DDL complicates things like
a shared plan cache and shared PL/pgSQL execution trees. Those things are
much easier in a trivial database implementation, where an ALTER TABLE is
just trampling over a running transaction.


Regards, Jan

--
Jan Wieck
Senior Postgres Architect

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