Re: Need Force flag for pg_drop_replication_slot()

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От Stephen Frost
Тема Re: Need Force flag for pg_drop_replication_slot()
Дата
Msg-id 20150529183901.GE26667@tamriel.snowman.net
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Ответ на Re: Need Force flag for pg_drop_replication_slot()  (Andres Freund <andres@anarazel.de>)
Ответы Re: Need Force flag for pg_drop_replication_slot()  (Andres Freund <andres@anarazel.de>)
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* Andres Freund (andres@anarazel.de) wrote:
> How is this measurably worse than trying to truncate a log table that
> has grown too large? That's often harder to fight actually, because
> there's dozens of other processes that might be using the relation?  In
> one case you don't have wait ordering, but only one locker, in the other
> case you have multiple waiters, and to benefit from wait ordering you
> need multiple sessions.

Because we don't fall over if we can't extend a relation.

We do fall over if we can't write WAL.
Thanks!
    Stephen

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