problem with arrays

Hi,

I'm trying to convert some tables from version 6.2 to 6.4.2 but I have
problems with arrays. The old table definition was:

  create table a (
	x int4,
	y char8,
	z char8[]
  );

Now, because the char8 datatype has been removed from postgres, I suppose
I should use char(8) or varchar(8):

  create table a (
	x int4,
	y char(8),
	z char(8)[]
  );

or

  create table a (
	x int4,
	y varchar(8),
	z varchar(8)[]
  );

but when I try the above definitions I get the following errors:

dz=> create table a (
dz-> 	x int4,
dz-> 	y char(8),
dz-> 	z char(8)[]
dz-> );
ERROR:  type name lookup of _bpchar failed

dz=> create table a (
dz-> 	x int4,
dz-> 	y varchar(8),
dz-> 	z varchar(8)[]
dz-> );
ERROR:  type name lookup of _varchar failed

Also trying to define the _varchar or _bpchar types fails, so it seems that
the conversion from 6.2 to 6.4 is not possible for many data types.
Any suggestion?

-- 
Massimo Dal Zotto

+----------------------------------------------------------------------+
|  Massimo Dal Zotto               email: dz@cs.unitn.it               |
|  Via Marconi, 141                phone: ++39-0461534251              |
|  38057 Pergine Valsugana (TN)      www: http://www.cs.unitn.it/~dz/  |
|  Italy                             pgp: finger dz@tango.cs.unitn.it  |
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