Re: jsonb format is pessimal for toast compression

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От Peter Geoghegan
Тема Re: jsonb format is pessimal for toast compression
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Msg-id CAM3SWZSergpuXOaF77Bp07FzRtjxLEj9b5yoKPUq_A=A6=iZtg@mail.gmail.com
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Ответ на Re: jsonb format is pessimal for toast compression  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: jsonb format is pessimal for toast compression  (Tom Lane <tgl@sss.pgh.pa.us>)
Список pgsql-hackers
On Thu, Aug 14, 2014 at 10:57 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Maybe this is telling us it's not worth changing the representation,
> and we should just go do something about the first_success_by threshold
> and be done.  I'm hesitant to draw such conclusions on the basis of a
> single use-case though, especially one that doesn't really have that
> much use for compression in the first place.  Do we have other JSON
> corpuses to look at?


Yes. Pavel posted some representative JSON data a while back:
http://pgsql.cz/data/data.dump.gz (it's a plain dump)

-- 
Peter Geoghegan



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