Re: B-tree parent pointer and checkpoints

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: B-tree parent pointer and checkpoints
Date: 2010-11-02 14:30:14
Message-ID: 26099.1288708214@sss.pgh.pa.us
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Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com> writes:
> I think we can fix this by requiring that any multi-WAL-record actions
> that are in-progress when a checkpoint starts (at the REDO-pointer) must
> finish before the checkpoint record is written.

What happens if someone wants to start a new split while the checkpoint
is hanging fire?

regards, tom lane

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