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Re: 8.2 Autovacuum BUG ?

From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Mikko Partio <mpartio(at)gmail(dot)com>
Cc: Pallav Kalva <pkalva(at)livedatagroup(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-performance(at)postgresql(dot)org
Subject: Re: 8.2 Autovacuum BUG ?
Date: 2007-08-31 18:47:44
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-performance
Mikko Partio escribi├│:

> Off-topic question: the documentation says that XID numbers are 32 bit.
> Could the XID be 64 bit when running on a 64 bit platform? That would
> effectively prevent wrap-around issues.

No, because they would take too much space in tuple headers.

Alvaro Herrera        
Al principio era UNIX, y UNIX habl├│ y dijo: "Hello world\n".
No dijo "Hello New Jersey\n", ni "Hello USA\n".

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