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Re: What's the XID?

From: "ivan(dot)hou" <ivan(dot)hou(at)msa(dot)hinet(dot)net>
To: pgsql-admin(at)postgresql(dot)org
Subject: Re: What's the XID?
Date: 2007-12-31 03:05:12
Message-ID: 14553816.post@talk.nabble.com (view raw or flat)
Thread:
Lists: pgsql-admin

Tom Lane-2 wrote:
> 
> Jeff Frost <jeff(at)frostconsultingllc(dot)com> writes:
>> On Thu, 27 Dec 2007, Tom Lane wrote:
>>> There's no global counter.  There's a backend-local "virtual transaction
>>> id" counter.
> 
>> That's a drag as I have quite a few clients who graph the xacts/sec with
>> MRTG. 
>> Most of these clients have read heavy workloads and it would be great to
>> be 
>> able to graph read vs write xacts, but a drag if you have no visibility
>> into 
>> the read xacts.
> 
> Why aren't you using the pgstats xact counters for that?
> 
> 			regards, tom lane
> 
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> 
if no begin or commit , then the xid would also be increased ??
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