| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | "Marko Kreen" <markokr(at)gmail(dot)com> |
| Cc: | "Bruce Momjian" <bruce(at)momjian(dot)us>, pgsql-hackers(at)postgresql(dot)org, "Jan Wieck" <JanWieck(at)yahoo(dot)com> |
| Subject: | Re: [PATCHES] [PATCH] Provide 8-byte transaction IDs to |
| Date: | 2006-08-21 17:29:48 |
| Message-ID: | 28412.1156181388@sss.pgh.pa.us |
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| Lists: | pgsql-hackers pgsql-patches |
"Marko Kreen" <markokr(at)gmail(dot)com> writes:
> On 8/21/06, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> I'm not following the point here. Dump and restore has never intended
>> to preserve the transaction counter, so why should it preserve
>> high-order bits of the transaction counter?
> Thus it guarantees that any new issued large txid's will be larger
> than existing ones in tables. Thus code can depend on monotonous
> growth.
Within a single installation, sure, but I don't buy that we ought to try
to preserve XIDs across installations.
regards, tom lane
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