note 35270 added to function.pg-last-oid

The way I nuderstand it, each value is emitted by a sequence only ONCE. If you retrieve a number (say 12) from a sequence using nextval(), the sequence will advance and subsequent calls to nextval() will return further numbers (after 12) in the sequence. This means that if you use nextval() to retrieve a value to use as a primary key, you can be guaranteed that no other calls to nextval() on that sequence will return the same value. No race conditions, no transactions required. That's what sequences are *for* afaik :^) ---- Manual Page -- http://www.php.net/manual/en/function.pg-last-oid.php Edit Note -- http://master.php.net/manage/user-notes.php?action=edit+35270 Delete Note -- http://master.php.net/manage/user-notes.php?action=delete+35270&report=yes Reject Note -- http://master.php.net/manage/user-notes.php?action=reject+35270&report=yes