Migration to Hibernate 3.5 final

I´ve an application running in hibernate 3.3.2 and the applications
works fine, with all blob fields using oid (byte[] in java),
Migrating to hibernate 3.5 all blob fields not work anymore, and the
server log shows

ERROR org.hibernate.util.JDBCExceptionReporter - ERROR: column
"preferencia" is of type oid but expression is of type bytea

But I'm cann't change the tables struct for use bytea instead oid,
because I lost all data.
How I can solve it? Or How can I migrate de OID field to bytea field.

regards
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*Rafael Guzi Felix da Silva*
*Desenvolvedor de Sistemas*
Serhmatica Sistemas e Serviços de Informática <http://www.serhmatica.com.br>
Telefone: (49) 3566 1303

--
Serhmatica
visite: www.serhmatica.com.br
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