Dne 6.4.2010 5:50, Joseph Adams napsal(a):
Another JSON strictness issue: the JSON standard (
http://www.ietf.org/rfc/rfc4627.txt ) states that JSON text can only
be an array or object. However, my implementation currently accepts
any valid value. Thus, '3', '"hello"', 'true', 'false', and 'null'
are all accepted by my implementation, but are not strictly JSON text.
The question is: should the JSON datatype accept atomic values (those
that aren't arrays or objects) as valid JSON?
Not really sure about this myself, but keep in mind that NULL has
special meaning in SQL.
Also, should we go even further and accept key:value pairs by themselves? :
'"key":"value"'::JSON
No, especially considering that '{"key":"value"}' is a valid JSON value.
I improved my JSON library. It now only accepts strict, UTF-8 encoded
JSON values (that is, objects, arrays, strings, numbers, true, false,
and null).
Just a note, but PostgreSQL has some UTF-8 validation code, you might
want to look at it maybe, at least once you start the actual integration
into core, so that you are not reinventing too many wheels. I can see
how your own code is good thing for general library which this can (and
I am sure will be) used as, but for the datatype itself, it might be
better idea to use what's already there, unless it's somehow
incompatible of course.
--
Regards
Petr Jelinek (PJMODOS)
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