Re: concurrency control docs error

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От Bruce Momjian
Тема Re: concurrency control docs error
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Msg-id 200211120445.gAC4jeo29705@candle.pha.pa.us
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Ответ на concurrency control docs error  (Neil Conway <neilc@samurai.com>)
Ответы Re: concurrency control docs error  (Neil Conway <neilc@samurai.com>)
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Neil Conway wrote:
> The docs on concurrency control & deadlocks (User's Guide, 9.3.3, CVS
> docs) state the following:
>
>   Use of explicit locking can cause deadlocks, wherein two (or more)
>   transactions each hold locks that the other wants.
>
> This isn't completely true, as deadlocks can occur in applications
> that don't use explicit 'LOCK' statements.
>
> Can someone suggest a better way to phrase the intent of that
> statement?

But it isn't saying there aren't other deadlock cases, just that
explicit locks tend to cause them more frequently.  You can add "Often"
to the front of the sentence.

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