| From: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
|---|---|
| To: | Alvaro Herrera <alvherre(at)dcc(dot)uchile(dot)cl> |
| Cc: | Simon Riggs <simon(at)2ndquadrant(dot)com>, Richard Huxton <dev(at)archonet(dot)com>, Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: PITR Phase 2 - Design Planning |
| Date: | 2004-04-29 20:02:36 |
| Message-ID: | 200404292202.36253.peter_e@gmx.net |
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| Lists: | pgsql-hackers |
Alvaro Herrera wrote:
> But a "savepoint" has a very precise meaning in the SQL standard,
> which relates to points in a transaction you can roll back to. I
> don't think you want to overload with this other meaning, which I see
> as putting a special mark in the XLog -- completely unrelated.
They are completely unrelated because you're considering them on two
different levels. From the user interface level they are both a place
to roll back to. Whether they are inside the same transaction or not
is like the difference between a normal and a holdable cursor, but it's
the same interface.
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