Skip site navigation (1) Skip section navigation (2)

Re: Hot standby and GiST page splits (was Re: WIP: Fast GiST index build)

From: Simon Riggs <simon(at)2ndQuadrant(dot)com>
To: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
Cc: Alexander Korotkov <aekorotkov(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Hot standby and GiST page splits (was Re: WIP: Fast GiST index build)
Date: 2011-08-02 12:18:57
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
On Tue, Aug 2, 2011 at 12:43 PM, Heikki Linnakangas
<heikki(dot)linnakangas(at)enterprisedb(dot)com> wrote:
> On 02.08.2011 14:36, Simon Riggs wrote:
>> On Tue, Aug 2, 2011 at 12:03 PM, Heikki Linnakangas
>> <heikki(dot)linnakangas(at)enterprisedb(dot)com>  wrote:
>>> If we change the WAL record, we have to make it so that the new version
>>> can
>>> still read the old format, which complicates the implementation a bit.
>>> Neverthelss, I'm leaning towards option 1.
>> We may as well do (1), with two versions of the WAL record.
> Actually I think we can append the new information to the end of the page
> split record, so that an old version server can read WAL generated by new
> version, too.

Not sure how that would work. Lengths, CRCs?

Or do you mean we will support 2 versions, have them both called the
same thing, just resolve which is which by the record length. Don't
like that.

 Simon Riggs         
 PostgreSQL Development, 24x7 Support, Training & Services

In response to


pgsql-hackers by date

Next:From: Alexander KorotkovDate: 2011-08-02 12:33:16
Subject: Re: WIP: Fast GiST index build
Previous:From: Simon RiggsDate: 2011-08-02 12:09:11
Subject: Re: Compressing the AFTER TRIGGER queue

Privacy Policy | About PostgreSQL
Copyright © 1996-2018 The PostgreSQL Global Development Group