On Wed, Apr 25, 2018 at 2:12 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Oleg Bartunov <obartunov@postgrespro.ru> writes:
>> Attached is a small patch, which documents the maximum size of
>> json[b] types. Probably, it's worth to patch previous releases, where
>> the types were introduced.
>
> If you said "maximum size is 1GB", period, I'd believe it ... although
> I'm pretty sure that general limitation is already documented elsewhere.
> I don't believe that it's possible to make a 256 Gb jsonb. How will
> that fit in the varlena header?
Oops, it should be 256 Mb :)
>
> regards, tom lane
>
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