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Re: HOT + MVCC-safe cluster conflict fix

From: "Pavan Deolasee" <pavan(dot)deolasee(at)gmail(dot)com>
To: "Heikki Linnakangas" <heikki(at)enterprisedb(dot)com>
Cc: "Pavan Deolasee" <pavan(at)enterprisedb(dot)com>, Patches <pgsql-patches(at)postgresql(dot)org>
Subject: Re: HOT + MVCC-safe cluster conflict fix
Date: 2007-04-19 13:18:33
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-patches
On 4/19/07, Heikki Linnakangas <heikki(at)enterprisedb(dot)com> wrote:
> Hi Pavan,
> Here's a little patch against CVS HEAD + NewHOT-v7.0.patch to fix the
> conflict between MVCC-safe cluster and HOT.
> index_getnext is modified to return all tuples in a HOT chain when
> called with SnapshotAny. Cluster will insert them all as normal cold
> updates.
Thanks Heikki. We might need to tweak it a bit because I think I had
made an assumption that heap_hot_fetch() should be called only on
the root tuple. Anyways, would look at it.


Pavan Deolasee

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