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From Andrus Adamchik <>
Subject Re: types.xml, psql and oid/bytea
Date Thu, 07 Dec 2006 10:22:45 GMT
Actually types.xml only affects DB generation. So I expect bytea to  
work as before, with no changes to the adapter (as long as there are  
no JDBC quirks of course).


On Dec 7, 2006, at 12:13 PM, Tore Halset wrote:

> Hello.
> I want to try out Slony-I replication solution for PostgreSQL. It  
> does not handle oid-blobs, so I must use bytea instead. This is  
> okay as my blobs are not that big.
> PostgreSQL has a blob problem.. If the blob in the database are  
> bytea, you must use setBytes/getBytes. If it is oid blob, then you  
> must use setBlob, getBlob. cayenne ByteArrayType handle this with  
> the usingBlob parameter.
> Some time ago, cayenne switched from bytea to oid blob as a default  
> blob data type. That was a good choice, but makes replication  
> solutions like Slony-I and Sequoia difficult to implement.
> I want to be able to run the PostgresAdapter with bytea as blob  
> type. Should I create my own local sublcass of cayenne  
> PostgresAdapter with its own types.xml or is there a better way?
>  - Tore.

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