Re: [HACKERS] Function to move the position of a replication slot

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От Tom Lane
Тема Re: [HACKERS] Function to move the position of a replication slot
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Msg-id 11042.1504323427@sss.pgh.pa.us
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Ответ на Re: [HACKERS] Function to move the position of a replication slot  (Peter Eisentraut <peter.eisentraut@2ndquadrant.com>)
Ответы Re: [HACKERS] Function to move the position of a replication slot  (Michael Paquier <michael.paquier@gmail.com>)
Re: [HACKERS] Function to move the position of a replication slot  (Andres Freund <andres@anarazel.de>)
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Peter Eisentraut <peter.eisentraut@2ndquadrant.com> writes:
> On 8/31/17 08:19, Magnus Hagander wrote:
>> I think that, in the end, covered all the comments?

> I didn't see any explanation of what this would actually be useful for.
> I suppose you could skip over some changes you don't want replicated,
> but how do you find to what position to skip?

Um ... I can see how you might expect to skip some events in a logical
replication stream and have a chance of things not being utterly broken.
But how can that work for physical replication?  Missed updates are
normally spelled "unrecoverable data corruption" at that level.
        regards, tom lane



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