> You may find that the PGQ component of skytools is what you want: > http://pgfoundry.org/projects/skytools > http://skytools.projects.postgresql.org/doc/ > http://skytools.projects.postgresql.org/doc/pgq-sql.html >
Thanks, we will look into it. Still, I am surprised to learn that SQL as such cannot handle it. I do realize that the question is not trivial. Would setting transaction isolation level to SERIALIZABLE help in any way? Would locking of the entire table help in any way? Nix.