unnest on multi-dimensional arrays

[Zev Benjamin <zev-pgsql@xxxxxxxxxxxxxxxxx>]

It appears that unnest, when called on a multi-dimensional array, 
effectively flattens the array first.  For example:

=> select * from unnest(array[array[1, 2], array[2, 3]]);
 unnest
--------
      1
      2
      2
      3
(4 rows)

while I would have expect something like the following:

=> select * from unnest(array[array[1, 2], array[2, 3]]);
 unnest
--------
   {1, 2}
   {2, 3}
(2 rows)

Is there any way to get the latter behavior?


Zev


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