Thanks, I had already read it. What I cannot find is how to get the behavior I described, is there a way? Paolo Pierotti Viale Lombardia, 4 Lodi (LO) M: +39 328 9035851 P: +39 075 8556435 W: www.mmbb.it -----Messaggio originale----- Da: Adrian Klaver <adrian.klaver@xxxxxxxxxxx> Inviato: martedì 30 ottobre 2018 15:06 A: p.pierotti@xxxxxxx; pgsql-general@xxxxxxxxxxxxxx Oggetto: Re: Problem with stored procedure and nested transactions On 10/30/18 7:03 AM, p.pierotti@xxxxxxx wrote: > Hi everyone, > > I have problems with stored procedures introduced in version 11. > > I do not understand how to create a nested transaction, in this > semplified example: > > *create**or**replace**procedure*tst_prc(*inout*p_cod *text*) > *language*plpgsql *as**$procedure$* > > *begin* > > p_cod := 'a'; > > *begin* > > *update*aziende *set*mail = 'asd@xxxxxxx'*where*id = 11; --1st update > > *begin* > > *update*aziende *set*telefono = '0123456789'*where*id = 11; --2nd > update > > *commit*; > > *raise**notice*'Inner'; > > *end*; > > *update*aziende *set*telefono = '089'*where*id = 11; --3rd update > > --commit; > > *rollback*; > > *raise**notice*'Outer'; > > *end*; > > p_cod := 'b'; > > *end*; > > *$procedure$* > > The third update goes, rightly, in rollback; the problem is that the > first 2 are committed. > > I thought that the ?BEGIN/END? block was used to create new > transactions and that each of them could be managed individually. https://www.postgresql.org/docs/10/static/plpgsql-structure.html "It is important not to confuse the use of BEGIN/END for grouping statements in PL/pgSQL with the similarly-named SQL commands for transaction control. PL/pgSQL's BEGIN/END are only for grouping; they do not start or end a transaction. See Section 43.8 for information on managing transactions in PL/pgSQL. Also, a block containing an EXCEPTION clause effectively forms a subtransaction that can be rolled back without affecting the outer transaction. For more about that see " > > What am I doing wrong? > > Best regards. > > ** > > *Paolo Pierotti * > > ** > > > http://www.mmbb.it/wp-content/uploads/2018/02/MMBB-logo.png > > Viale Lombardia, 4 Lodi (LO) > M: +39 328 9035851 > > P: +39 075 8556435 > > W: www.mmbb.it <http://www.mmbb.it/> > -- Adrian Klaver adrian.klaver@xxxxxxxxxxx
