On Dec 18, 2009, at 8:51 AM, Robert Haas wrote:

> What would that do for us?
> 
> I'm not opposed to it, but it seems like the more important thing
> would be to provide functions or operators that can do things like
> extract an array, extract a hash key, identify whether something is a
> hash, list, or scalar, etc.

Such things would be included with such a data type, no?

Best,

David

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