Re: additional json functionality

On 11/13/2013 11:37 AM, Merlin Moncure wrote:
>
> Yes. and I think this is one of the major advantages of the json API
> vs hstore: you can serialize objects that hstore cannot -- at least
> not without extra scaffolding (at least, AIUI, I haven't fully
> grappled with the coming hstore stuff yet). In other words, just
> because key order and cardinality is unimportant in an associative
> array, it does not in any way follow it is similarly unimportant for
> object serialization.

I think you're probably going to lose any argument that says we should
necessarily preserve key order (and possibly key duplication) in
objects. The standard doesn't support such a contention, either:

An object is an unordered collection of zero or more name/value
pairs

...

The names within an object SHOULD be unique.

Forcing us to preserve order and key duplication would be a pretty
effective barrier to any performance improvements.

cheers

andrew