Re: Is DBLINK transactional - Mailing list pgsql-performance

From Jeff Davis
Subject Re: Is DBLINK transactional
Date
Msg-id 1268430857.32299.11.camel@monkey-cat.sm.truviso.com
Whole thread Raw
In response to Re: Is DBLINK transactional  (Merlin Moncure <mmoncure@gmail.com>)
Responses Re: Is DBLINK transactional  (Craig Ringer <craig@postnewspapers.com.au>)
List pgsql-performance
On Fri, 2010-03-12 at 12:07 -0500, Merlin Moncure wrote:
> of course.  You can always explicitly open a transaction on the remote
> side over dblink, do work, and commit it at the last possible moment.
> Your transactions aren't perfectly synchronized...if you crash in the
> precise moment between committing the remote and the local you can get
> in trouble.  The chances of this are extremely remote though.

If you want a better guarantee than that, consider using 2PC.

The problem with things that are "extremely remote" possibilities are
that they tend to be less remote than we expect ;)

Regards,
    Jeff Davis


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