Empty array issue

[franklx]

SELECTing an array field (with any primitive type into) raises an exception:

[03/Nov/2011:21:17:23] HTTP Traceback (most recent call last):
  ...
  File "pg8000/types.py", line 442, in array_recv
    element_len, = struct.unpack("!i", data[:4])
error: unpack str size too short for format

This is caused by the "data" variabile containing an empty string.

A quick but working fix could be the following:

         if len(data):
             element_len, = struct.unpack("!i", data[:4])
         else:
             element_len = -1

[reingart]

I've made a googlecode fork and patched the source with your fix, could you test it?

http://code.google.com/p/pg8000/

http://code.google.com/p/pg8000/source/detail?r=c013f3f45c90bb4919fb388699a6d31bbbf864b1

[tlocke]

I've fixed this in the Python 2 and 3 branches.