Re: Wanted: jsonb on-disk representation documentation - Mailing list pgsql-hackers

From Michael Paquier
Subject Re: Wanted: jsonb on-disk representation documentation
Date
Msg-id CAB7nPqQBJHUpebuLTD4kkaPazkGk2o1k4V9hiaop8EW43sEB2A@mail.gmail.com
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In response to Re: Wanted: jsonb on-disk representation documentation  (Heikki Linnakangas <hlinnakangas@vmware.com>)
List pgsql-hackers
On Wed, May 7, 2014 at 8:20 PM, Heikki Linnakangas
<hlinnakangas@vmware.com> wrote:
> So, apart from cleaning up the code, we really need to take a close look at
> the on-disk format now. The code can be cleaned up later, too, but we're
> going to be stuck with the on-disk format forever, so it's critical to get
> that right.
>
> First, a few observations:
>
> * JENTRY_ISFIRST is redundant. Whenever you deal with the Jentry struct, you
> know from the context which element in the array it is.
>
> * JENTRY_ISNEST is set but never used.
>
> * JENTRY_ISBOOL is defined as (JENTRY_ISNUMERIC | JENTRY_ISNEST), which
> seems confusing.
>
> I'm going to proceed refactoring those things, which will change the on-disk
> format. It's late in the release cycle - these things really should've been
> cleaned up earlier - but it's important to get the on-disk format right.
> Shout if you have any objections.
+1. It is saner to do that now than never.
-- 
Michael



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