Re: Time-based trigger

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От Szymon Guz
Тема Re: Time-based trigger
Дата
Msg-id CAFjNrYvKLpO5Dnx11O+2aJt4ifQOjT1VdjGtRMDsXJVEescU-g@mail.gmail.com
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Ответ на Time-based trigger  (Robert Sosinski <rsosinski@ticketevolution.com>)
Ответы Re: Time-based trigger  (Rob Sargent <robjsargent@gmail.com>)
Список pgsql-general
On 18 September 2012 17:59, Robert Sosinski <rsosinski@ticketevolution.com> wrote:
We have a table, which has items that can be put on hold of 5 minutes (this is for an online store) once they are placed into a cart.  What we need is for this hold to automatically expire after 5 minutes.  Right now, we put a time stamp into the row (called hold_until) at 5 minutes into the future, and select items where hold_until is less then now().

Would it be possible to change this to using a boolean that is set to true when item is put on hold, and have something like a time-based trigger automatically update the held boolean to false after 5 minutes pass.

Thanks,

-- 
Robert Sosinski


It is not possible right now, however I'd rather create some cron job which updates the boolean value if needed and runs each minute.

- Szymon

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