Re: jsonb format is pessimal for toast compression

From: Stephen Frost <sfrost(at)snowman(dot)net>
To: Bruce Momjian <bruce(at)momjian(dot)us>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgresql(dot)org, Larry White <ljw1001(at)gmail(dot)com>
Subject: Re: jsonb format is pessimal for toast compression
Date: 2014-08-09 00:25:04
Message-ID: 20140809002503.GP16422@tamriel.snowman.net
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* Bruce Momjian (bruce(at)momjian(dot)us) wrote:
> On Fri, Aug 8, 2014 at 11:02:26AM -0400, Tom Lane wrote:
> > 2. Are we going to ship 9.4 without fixing this? I definitely don't see
> > replacing pg_lzcompress as being on the agenda for 9.4, whereas changing
> > jsonb is still within the bounds of reason.
>
> FYI, pg_upgrade could be taught to refuse to upgrade from earlier 9.4
> betas and report the problem JSONB columns.

That is *not* a good solution..

Thanks,

Stephen

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