Re: How to get the size of JSONB in bytes?

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От David G. Johnston
Тема Re: How to get the size of JSONB in bytes?
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Msg-id CAKFQuwZ=-iT-veDcWiYdv2v8LfyPDdtHC363U2s4+E+EBT++Rg@mail.gmail.com
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Ответ на Re: How to get the size of JSONB in bytes?  (Dmitry Savenko <ds@dsavenko.com>)
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On Tue, Dec 15, 2015 at 9:54 PM, Dmitry Savenko <ds@dsavenko.com> wrote:

and now it works! I think they should add casting to 'bytea' directly,
such workarounds shouldn't be necessary.

Casting to bytea and counting the bytes is just as hackey, IMO.  If this use-case wants to be officially supported the type itself should define what "length/size" means and a function should be provided to extract that value.  I have the impression that the content length is already part of the stored data so really only the function would be needed.  I haven't given it that much thought, and zero present research, so I may be mis-remembering old threads.

​David J.


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