Re: tracking commit timestamps

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.

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