I think you're confused about what actually happened... Session 1: decibel=# select * from a; i --- 1 (1 row) decibel=# begin; BEGIN decibel=# select * from a for update nowait; i --- 1 (1 row) decibel=# Session 2: decibel=# select * from a for update nowait; ERROR: could not obtain lock on row in relation "a" decibel=# select * from a for update; ...waits... Session 1: decibel=# rollback; ROLLBACK decibel=# And immediately in session 2: i --- 1 (1 row) decibel=# On Thu, Apr 13, 2006 at 01:57:47AM +0000, Mathias Laurent wrote: > Hello, > > Veiled I have a small problem which I have solved in a way not very clean, > I would thus like to have your opinion. When I made with the process 1 : > > Select * FROM myTable WHERE num=3 FOR UPDATE NOWAIT > > And that I remade it with a process 2 before having do one "Commit" It > blocked me (until there normal) > But once that I free by doing one "Commit" with process 1 All the table > remains to block for process 2... > To have access it, it is necessary that I do one "Commit" with the > processus2 !! It's very strange... > > Thank you, > > Mathias Laurent > > _________________________________________________________________ > Windows Live Mail : d?couvrez et testez la version b?ta ! > http://www.ideas.live.com/ > > > ---------------------------(end of broadcast)--------------------------- > TIP 3: Have you checked our extensive FAQ? > > http://www.postgresql.org/docs/faq > -- Jim C. Nasby, Sr. Engineering Consultant jnasby@xxxxxxxxxxxxx Pervasive Software http://pervasive.com work: 512-231-6117 vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461