Re: Getting current transaction id - Mailing list pgsql-hackers

From Nicolai Petri
Subject Re: Getting current transaction id
Date
Msg-id 200607272150.19800.lists@petri.cc
Whole thread Raw
In response to Re: Getting current transaction id  ("Marko Kreen" <markokr@gmail.com>)
List pgsql-hackers
On Tuesday 25 July 2006 22:05, Marko Kreen wrote:
> On 7/24/06, Nicolai Petri <lists@petri.cc> wrote:
> > I'm in the need for my custom written replication engine to obtain the
> > current transaction id from a trigger function. As far as I'm told it's
> > not possible today. Would people object much if this functionality was
> > added for 8.2 ? 
>
> Using XID directly has some drawbacks,  I need similary finctionality,
> and decided to extend XID to 8-bytes and use that externally:
>
>   http://archives.postgresql.org/pgsql-patches/2006-07/msg00157.php
>
> Would that work for you?
That seems perfect for my use - I solved the wraparound issue in my code by 
only allowing pending transactions to stay in the queue for 1 month maximum. 
But I'll probably use the 64 bit counter instead if it was present.

Is there any chance for this going into 8.2 ?

---
Nicolai Petri


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