Re: jsonb format is pessimal for toast compression

From: Peter Geoghegan <pg(at)heroku(dot)com>
To: Jan Wieck <jan(at)wi3ck(dot)info>
Cc: Craig Ringer <craig(at)2ndquadrant(dot)com>, Josh Berkus <josh(at)agliodbs(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Claudio Freire <klaussfreire(at)gmail(dot)com>, Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "David E(dot) Wheeler" <david(at)justatheory(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>, Andrew Dunstan <andrew(at)dunslane(dot)net>
Subject: Re: jsonb format is pessimal for toast compression
Date: 2014-09-24 05:10:12
Message-ID: CAM3SWZTAk5xKZ0T13efcHnyb1qBL-oNWod4Pb7wYzV4LhF9Pjw@mail.gmail.com
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On Tue, Sep 23, 2014 at 10:02 PM, Jan Wieck <jan(at)wi3ck(dot)info> wrote:
>> Is it worth paying a byte per value to save on possible upgrade pain?
>>
>
> This comment seems to have drowned in the discussion.
>
> If there indeed has to be a catversion bump in the process of this, then I
> agree with Craig.

-1. We already have a reserved bit.

--
Peter Geoghegan

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