Enhance unittest for pgsql numeric type to also check for using Python Decimal objects as arguments, making sure they come back exactlyt the same.
Enhance unittest for pgsql numeric type to also check for using Python
Decimal objects as arguments, making sure they come back exactlyt the same.

barryp/py-bpgsql,olopez32/py-bpgsql,d33tah/bpgsql