| From: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
|---|---|
| To: | John W Higgins <wishdev(at)gmail(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Stephen Frost <sfrost(at)snowman(dot)net>, pgsql-hackers(at)postgresql(dot)org, Larry White <ljw1001(at)gmail(dot)com> |
| Subject: | Re: jsonb format is pessimal for toast compression |
| Date: | 2014-08-08 16:26:46 |
| Message-ID: | 53E4FA46.9000807@dunslane.net |
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| Lists: | pgsql-hackers |
On 08/08/2014 12:04 PM, John W Higgins wrote:
>
> Would an answer be to switch the location of the jsonb "header" data
> to the end of the field as opposed to the beginning of the field? That
> would allow pglz to see what it wants to see early on and go to work
> when possible?
>
> Add an offset at the top of the field to show where to look - but then
> it would be the same in terms of functionality outside of that? Or
> pretty close?
>
That might make building up jsonb structures piece by piece as we do
difficult.
cheers
andrew
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