Re: How would you store read/unread topic status? - Mailing list pgsql-performance

From Andres Freund
Subject Re: How would you store read/unread topic status?
Date
Msg-id 4A40CDD7.4060904@anarazel.de
Whole thread Raw
In response to Re: How would you store read/unread topic status?  (Alexander Staubo <alex@bengler.no>)
List pgsql-performance
On 06/23/2009 02:37 PM, Alexander Staubo wrote:
> (That said, I believe PostgreSQL diffs tuple updates, so in practice
> PostgreSQL might not be writing anything if you run an "update" with
> the same value. I will let someone more intimate with the internal
> details of updates to comment on this.)
No, it does not do that by default.
You can write a trigger to do that though - and there is one packaged
with the core version in the upcoming 8.4 version.

Andres

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