| From: | Alvaro Herrera <alvherre(at)dcc(dot)uchile(dot)cl> |
|---|---|
| To: | Dennis Bjorklund <db(at)zigo(dot)dhs(dot)org> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Mike Rylander <miker(at)purplefrog(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Nested Transactions, Abort All |
| Date: | 2004-07-10 19:56:34 |
| Message-ID: | 20040710195634.GA5238@dcc.uchile.cl |
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| Thread: | |
| Lists: | pgsql-hackers |
On Sat, Jul 10, 2004 at 09:46:00PM +0200, Dennis Bjorklund wrote:
> One can have many different semantics, here are 3 versions:
>
> 1) You release savepoints in any order
> 2) You release savepoints in reverse order
> 3) You release any savepoints and later ones then the
> one you released are automatically released.
>
> I don't see any of these as absurd. The ansi spec uses number 3.
Ah-ha, now I see what I failed to see previously: all later savepoints
are also released! This makes a lot more sense. So "release" is
exactly like commit nested, allowing several levels to be "committed".
--
Alvaro Herrera (<alvherre[a]dcc.uchile.cl>)
"La fuerza no está en los medios físicos
sino que reside en una voluntad indomable" (Gandhi)
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