Re: Isn't init_irels() dangerous ?

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От Tom Lane
Тема Re: Isn't init_irels() dangerous ?
Дата
Msg-id 22103.977531860@sss.pgh.pa.us
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Ответ на Re: Isn't init_irels() dangerous ?  (Hiroshi Inoue <Inoue@tpf.co.jp>)
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Hiroshi Inoue <Inoue@tpf.co.jp> writes:
> Tom Lane wrote:
>> "Hiroshi Inoue" <Inoue@tpf.co.jp> writes:
>>>> It seems that init_irels() should be called after
>>>> InitializeTransactionSystem() was called.
>> 
>> Can we just swap the order of the RelationCacheInitialize() and
>> InitializeTransactionSystem() calls in InitPostgres?  If that
>> works, I'd have no objection.

> It doesn't work. InitializeTransactionSystem() requires
> pg_log/pg_variable relations which are already built in 
> RelationCacheInitialize().

OK.  Second proposal: do the init_irels() call in
RelationCacheInitializePhase2().  I've just looked through the
other stuff that's done in between, and I don't think any of it
needs valid relcache entries.

> In the meantime,I have another anxiety. init_irels()
> (RelationCacheInitialize()) seems to be called while 
> Locking is disabled.

This should fix that problem, too.
        regards, tom lane


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