Re: Design question regarding arrays

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От Oliver Fromme
Тема Re: Design question regarding arrays
Дата
Msg-id 200408091029.i79ATRv3053414@lurza.secnetix.de
обсуждение исходный текст
Ответ на Re: Design question regarding arrays  ("Sean Davis" <sdavis2@mail.nih.gov>)
Ответы Re: Design question regarding arrays  (Stephan Szabo <sszabo@megazone.bigpanda.com>)
Список pgsql-novice
Sean Davis wrote:
 > I'm a novice, too, but why not look up the value in the sequence and
 > increment it before doing any inserting?  If you are doing all the inserts
 > at the same time (more or less), then you can just use this value in the
 > insert into both tables.  Put all of this inside one transaction.

That won't work if another process is trying to do the same
thing at the same time.  They both get the same value when
they look it up, so there will be an ID collision.

Best regards
   Oliver

--
Oliver Fromme, secnetix GmbH & Co KG, Oettingenstr. 2, 80538 München
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and may not necessarily reflect the opinions of secnetix in any way.

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