Re: get sequence value of insert command

Поиск
Список
Период
Сортировка
От Passynkov, Vadim
Тема Re: get sequence value of insert command
Дата
Msg-id C8C8E7457059D5119E4700D0B765DCB8016AA911@sinope.inside.pathcom.com
обсуждение исходный текст
Ответ на get sequence value of insert command  (Erik Thiele <erik@thiele-hydraulik.de>)
Ответы Re: get sequence value of insert command
Список pgsql-sql

> -----Original Message-----
> From: Erik Thiele [mailto:erik@thiele-hydraulik.de]
> Sent: Friday, November 19, 2004 3:42 AM
> To: pgsql-sql@postgresql.org
> Subject: [SQL] get sequence value of insert command
> 
> 
> hi
> 
> create sequence mysequence;
> 
> create table foo(
>   id integer default nextval('mysequence'),
>   bla text,
>   wombat integer,
>   foobar date,
>   primary key(id)
> );
> 
> insert into foo (wombat) values (88);
> 
> now how do i know the id of my newly inserted element? and
> how can this be done in a completely concurrency safe way?

CREATE RULE get_pkey_on_insert AS ON INSERT TO foo DO SELECT
currval('mysequence') AS id LIMIT 1;

> 
> 
> cya
> erik
> 
> ---------------------------(end of 
> broadcast)---------------------------
> TIP 7: don't forget to increase your free space map settings
> 


В списке pgsql-sql по дате отправления:

Предыдущее
От: "Riccardo G. Facchini"
Дата:
Сообщение: Re: CREATE TEMPORARY TABLE .. ON COMMIT DROP question
Следующее
От: Guy Fraser
Дата:
Сообщение: Re: Comparing Dates