| 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 17:52:32 |
| Message-ID: | 20140809175232.GX16422@tamriel.snowman.net |
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| Lists: | pgsql-hackers |
Bruce,
* Bruce Momjian (bruce(at)momjian(dot)us) wrote:
> On Fri, Aug 8, 2014 at 08:25:04PM -0400, Stephen Frost wrote:
> > * Bruce Momjian (bruce(at)momjian(dot)us) wrote:
> > > 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..
>
> If you change the JSONB binary format, and we can't read the old format,
> that is the only option.
Apologies- I had thought you were suggesting this for a 9.4 -> 9.5
conversion, not for just 9.4beta to 9.4. Adding that to pg_upgrade to
address folks upgrading from betas would certainly be fine.
Thanks,
Stephen
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