Albe Laurenz *EXTERN* wrote
> Also, I think that your method is vulnerable to race conditions:
> If somebody else increments the sequence between the INSERT and
> "SELECT lastval()" you'd get a wrong value.
Uh, no. It returns that last value issued in the same session - which is
race-proof.
http://www.postgresql.org/docs/9.3/static/functions-sequence.html
Both of them are useful and in the case of inserting multiple rows you have
to use RETURNING. Beyond though it is largely personal preference and
ease-of-use (dealing with a set when you know a single value is all that is
necessary can be annoying).
David J.
--
View this message in context:
http://postgresql.1045698.n5.nabble.com/Referencing-serial-col-s-sequence-for-insert-tp5812225p5812382.html
Sent from the PostgreSQL - general mailing list archive at Nabble.com.
