Should work. I'm not sure 2.5 release savepoint is necessary. On Wed, May 5, 2010 at 12:53 AM, Konstantin Izmailov <pgf...@gmail.com> wrote: > I expect that only changes on step 2.7 persisted in DB. > > On Tue, May 4, 2010 at 11:18 PM, Scott Marlowe <scott.marl...@gmail.com> > wrote: >> >> On Tue, May 4, 2010 at 11:52 PM, Konstantin Izmailov <pgf...@gmail.com> >> wrote: >> > Hi, >> > I'm working on a solution that utilizes 2 phase commit protocol (between >> > SQL >> > Server and PostgreSQL). Normally PostgreSQL statements sequense is: >> > 1. START >> > 2. <inserts, updates, etc.> >> > 3. PREPARE TRANSACTION 'uuid' >> > 4. COMMIT PREPARED 'uuid' >> > >> > What if on step 2 user application issues statements with SAVEPOINTs, >> > e.g. >> > 2.1. SAVEPOINT svp1 >> > 2.2. <inserts, updates, etc.> >> > 2.3. SAVEPOINT svp2 >> > 2.4. <inserts, updates, etc.> >> > 2.5. RELEASE SAVEPOINT svp2 >> > 2.6. ROLLBACK TO SAVEPOINT svp1 >> > 2.7. <inserts, updates, etc.> >> > >> > Is this allowed and safe to use? >> >> What are you expecting to happen? > >
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