Re: types.xml, psql and oid/bytea

From: Andrus Adamchik (andru..bjectstyle.org)
Date: Thu Dec 07 2006 - 05:22:45 EST

  • Next message: Tore Halset: "Re: types.xml, psql and oid/bytea"

    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).

    Andrus

    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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