On 02/26/2015 10:16 AM, Tom Lane wrote:
> Andres Freund <andres@2ndquadrant.com> writes:
>> On 2015-02-26 11:55:20 +0000, Tim Smith wrote:
>>> As far as I'm aware, JSON has no data types as such, and so why is
>>> Postgres (9.4.1) attempting to impose its own nonsense constraints ?
>> "impose its own nonsense constraints" - breathe slowly in, and out, in,
>> and out.
>> It looks to me like ab14a73a6ca5cc4750f0e00a48bdc25a2293034a copied too
>> much code from xml.c - including a comment about XSD... Andrew, was that
>> intentional?
> Not wanting to put words in Andrew's mouth, but I thought the point of
> those changes was that timestamps emitted into JSON should be formatted
> per some ISO standard or other, and said standard (almost certainly)
> doesn't know what infinity is.
>
> At the same time, there is definitely no such requirement in the JSON spec
> itself, so at least the error message is quoting the wrong authority.
>
>
Well, we could say that we'll use ISO 8601 format for finite dates and
times, and '"infinity"' otherwise. Then if you want to be able to
interpret them as ISO 8601 format it will be up to you to ensure that
there are no infinite values being converted.
cheers
andrew