When querying a Microsoft Access database using the
ODBC driver, you can get the error "The field is too
small to accept the amount of data you attempted to
add." if the query includes a field of type Memo. This
is because HaskellDB queries use SELECT DISTINCT, which
Access does not like on Memo fields
for some reason.
Reported by Esa Ilari Vuokko on 2004-04-27.