Re: race condition in pgplsql call handler?

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От Tom Lane
Тема Re: race condition in pgplsql call handler?
Дата
Msg-id 18626.1178891485@sss.pgh.pa.us
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Ответ на Re: race condition in pgplsql call handler?  (Zdenek Kotala <Zdenek.Kotala@Sun.COM>)
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Zdenek Kotala <Zdenek.Kotala@Sun.COM> writes:
> Tom Lane wrote:
>> This is not a race condition because the backend is single-threaded.

> I see. Each backend has own function cache and use_count is for handle 
> recursion usage. Are my assumption correct?

Right.  Once a function cache entry is set up, it exists unchanged until
no longer in use, no matter what happens to the underlying pg_proc row.
        regards, tom lane

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