Arrays of composite types

Hi all.

I have a few questions about the use of psycopg for dealing with
arrays of such composite types.  I have a few composite types in
postgres, each of a few floats and integers.  I've then constructed an
array of such types.

I'd like to be able to get back a list of tuples.  Currently,
registering the composite type doesn't end up running my adapter,
presumably because the composite array actually has a different OID.
I can register the array OID as well, but then I'm left splitting and
parsing the entire string in python.  Is there a way to use the
existing array parsing code in psycopg2, and use the newly registered
adapter on each element?

As for parsing composite types, is there any loss of precision
converting the string representation of a (e.g.,) float from the
database to a python float?  Is the original bit representation of the
float available for use?

For a final bit of wishful thinking, are there plans to automatically
derive adapters for composite types.  Are there fundamental obstacles
to this?

Thanks.
~Jacob

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