Re: SERIAL Field

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От Joel Stevenson
Тема Re: SERIAL Field
Дата
Msg-id a05111709b8fc88c96775@[192.168.1.100]
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Ответ на Re: SERIAL Field  ("Dan Langille" <dan@langille.org>)
Ответы Re: SERIAL Field  (Tom Lane <tgl@sss.pgh.pa.us>)
Список pgsql-admin
>  > "You say nextval() + write, I say write + currval()..."
>
>So long as a given application does not mix the two approaches, everything
>should be fine.

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.
--
Joel Stevenson
Bear River Associates, Inc.

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