Re: Hot Standby: Caches and Locks - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Hot Standby: Caches and Locks
Date
Msg-id 10895.1225372906@sss.pgh.pa.us
Whole thread Raw
In response to Re: Hot Standby: Caches and Locks  (Simon Riggs <simon@2ndQuadrant.com>)
List pgsql-hackers
Simon Riggs <simon@2ndQuadrant.com> writes:
> On Thu, 2008-10-30 at 08:30 -0400, Tom Lane wrote:
>> What about using the existing
>> syscache logic to re-derive inval information from watching the update
>> operations?

> That does sound possible, but it makes some big assumptions about
> transactional machinery being in place. It ain't. Subtransactions make
> everything about 5 times more difficult, so it seems pretty scary to me.

Um.  Yeah, subtransactions would be a PITA.  Never mind that then ...
        regards, tom lane


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