Re: Delete/update with limit

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От Ron Johnson
Тема Re: Delete/update with limit
Дата
Msg-id 46A50EF3.8010909@cox.net
обсуждение исходный текст
Ответ на Delete/update with limit  (Csaba Nagy <nagy@ecircle-ag.com>)
Список pgsql-general
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On 07/23/07 10:56, Csaba Nagy wrote:
> Hi all,
>
> This subject was touched a few times in the past, I looked into the
> archives... the result is invariably key developers saying such a
> feature is unsafe because the result is unpredictable, while the people
> requesting is saying it is OK that way, it is expected... but no
> compelling use case for it.
>
[snip]
>
> Now I don't put too much hope I can convince anybody that the limit on
> the delete/update commands has valid usage scenarios, but then can
> anybody help me find a good solution to chunk-wise process such a buffer
> table where insert speed is the highest priority (thus no indexes, the
> minimum of fields), and batch processing should still work fine with big
> table size, while not impacting at all the inserts, and finish in short
> time to avoid long running transactions ? Cause I can't really think of
> one... other than our scheme with the delete with limit + trigger +
> private temp table thing.

Maybe add OIDs to the table, and delete based on the OID number?

- --
Ron Johnson, Jr.
Jefferson LA  USA

Give a man a fish, and he eats for a day.
Hit him with a fish, and he goes away for good!

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