odbc and bit-field

Hi!
Is this bug or is this "bug"...
I have table with field type 'bit'  acting as "boolean (true/false)" but
thru ODBC driver (in Win-NT 4) it's reported to be "VARCHAR [254]", so
it cannot be set to True or False (or 1 or 0)

Problem araised when I tried to move data from MSSQL 7 server to
Postgresql table using datatransform-services and odbc-drivers

Postgresql server is Linux 7.0.3 at SuSE 7.0
Odbc-driver is 7.01.00.06  date 06/03/01

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