Joel Stevenson <[EMAIL PROTECTED]> writes: > Though, if you have multiple clients inserting into the table, there > is a chance that between client A inserting the record and then > calling currval(), client B could have performed an insert, in which > case client A gets the value of client B's record. 'nextval() + > write' avoids this possible overlap.
People who have not studied the documentation frequently make that claim. *There is no such risk* (unless A and B are interleaving their commands on a single database connection, in which case they have lots worse risks of conflicts than this one). See http://www.ca.postgresql.org/users-lounge/docs/7.2/postgres/functions-sequence.html regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster