On 06/04/2015 11:33 AM, Jim Nasby wrote:
On 6/4/15 8:43 AM, Andrew Dunstan wrote:
You are conflating two different things here, quite pointlessly. The RH
operand of ?| is not a path, whereas the RH operand of this - variant
is. The fact that they are both text arrays doesn't mean that they
should mean the same thing. And this is really the whole problem with
the rest of your analysis.
Has the idea of a specific json_path datatype been discussed? I feel
it would add a lot of clarity to the operators. It would also make it
easy to have an array of paths, something that's difficult to do today
because a path can be an arbitrary length and arrays don't support that.
I actually thought of doing something like that earlier today, although
I was thinking of making it an array under the hood - I'm not sure how
much call there is for an array of paths. We could probably finesse
that. I agree that there is some sense in having such a type, especially
if we later want to implement json(b)_patch, see
<http://tools.ietf.org/html/rfc6902>. And if we do we should call the
type json_pointer to be consistent with
<http://tools.ietf.org/html/rfc6901>.
However, this is certainly not 9.5 material.
cheers
andrew
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