Subject: Re: Storing large large JSON objects in JSONB
To: pgsql-admin@lists.postgresql.org
Cc: Wells Oliver <wells.oliver@gmail.com>
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From: Thomas Kellerer <shammat@gmx.net>
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Date: Mon, 11 Jul 2022 19:49:43 +0200
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Wells Oliver schrieb am 11.07.2022 um 18:25:
>> On Mon, Jul 11, 2022 at 5:11 AM Thomas Kellerer <shammat@gmx.net <mailt=
o:shammat@gmx.net>> wrote:
>>
>>     Wells Oliver schrieb am 09.07.2022 um 21:37:
>>      > We have a couple of tables where we like to store very large JSO=
N
>>      > objects in a JSONB column.
>>     Note, that the upper limit for a single jsonb value is 255MB
>>     Not 1GB as it is e.g. the case for text or json.

> What exactly does that mean? The upper limit at which TOAST is used
> for storage, or what? We certainly have objects larger than 256MB in
> JSONB columns.
Hmm, that's strange, because when I try to create a JSONB value that is
larger than 256MB I get the following error:

    ERROR: total size of jsonb object elements exceeds the maximum of 2684=
35455 bytes

Are you sure you are using jsonb, not json maybe?
To my knowledge the json data type does not have this limit.