I want to use postresql for this app, but...

I am working with a window-manufacturing firm (the real thing!).  One of
the reasons we are about to choose one of the vertical-market
applications is that they claim ODBC compliance, and "Using other ODBC
compliant database engines should not present a problem but may require
some additional testing..."  This is in stark contrast to all the other
vendors who require MSSQL on the back end (or an AS400), and the usual
windoziness about why you'd want to do anything else.

When I asked about using PostgreSQL this is the reply I received:
----
I discussed PostureSQL with Paul and his technical director sent me the
following comment:
/   PostgreSQL// is open source and so far they have not agreed on a blob
   field properly we use blob fields for the item bitmap, old conservatory
   data and meta files for graphics. An ODBC driver is available and
   describes how to fudge a blob field but it says that it does not clean
   them up properly when updating. I suggest moving to MySQL which
   is also open source ??///
They estimate about one day additional time to make necessary changes
and to test for MySQL.  Let me know what you think.
----
These folks develop using MSAccess and MSSQL.

Can anyone shed any light on how serious this problem is, and whether it
is ever likely to be resolved so that I could use PostgreSQL?

TIA!

PS - the vertical market software is Caliburn v8 at
http://www.caliburn-software.com/

--
Derek Shaw
BIS Business Information Systems Inc.
Victoria, BC.
voice: 250-885-2021   fax: 250-386-4060
PGP Public Key ID: 0xD3783198