CREATE TYPE VARCHAR2

Hi,

I try to emulate with PostgreSQL an Oracle database.  My problem is
that PostgreSQL does not support any Oracle specific types.
PostgreSQL provides the TEXT and Oracle uses the CLOB or VARCHAR2
type.  I would like to use the CREATE TYPE statement to tell
PostgreSQL about the Oracle types, but the documentation does not
describe how to define a simple alias type.  I would like to define a
new type VARCHAR2 which should behave exactly like VARCHAR.  Is this
possible with PostgreSQL?  By this it would be possible to run the
Oracle create table scripts without modification.

cu Sascha

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