Re: tracking commit timestamps

On 2014-11-07 17:54:32 +0100, Petr Jelinek wrote:
> On 06/11/14 08:50, Andres Freund wrote:
> >On 2014-11-05 19:31:52 -0500, Steve Singer wrote:
> >>It also doesn't allow you to load two extensions at once on a system.
> >>You wouldn't be able to have both the 'steve_commit_order' extension
> >>and BDR installed at the same time.  I don't think this patch does a
> >>very good job at (B) but It wasn't intended to.
> >
> >Well, I don't agree that steve_commit_order makes much sense in this
> >context. But there actually is a real problem here, namely that there's
> >no namespacing in those bytes. I'd be ok with saying that we split the
> >extradata in for bytes for the namespace and four for the actual
> >data. That's roughly how it works for advisory locks already.
> >
> 
> I am not sure how would this solve problem of 2 extensions using the
> extradata given that there can be only 1 record per txid anyway.

It'd help you to detect problems.

Greetings,

Andres Freund

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