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Home/ Questions/Q 7045045
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Editorial Team
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Editorial Team
Asked: May 28, 20262026-05-28T02:28:55+00:00 2026-05-28T02:28:55+00:00

In my data model there is a class with a byte[] Hash property, which

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In my data model there is a class with a byte[] Hash property, which is translated into BLOB. I want this column/property to be unique.

According to this MySQL manual page, I need to specify an index prefix length for the BLOB otherwise it doesn’t allow indexing on BLOB.

CREATE TABLE test (blob_col BLOB, INDEX(blob_col(10)));

In (Fluent) NHibernate how can I do it?

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  1. Editorial Team
    Editorial Team
    2026-05-28T02:28:56+00:00Added an answer on May 28, 2026 at 2:28 am

    database-object in a hbm.xml file or string and new Configuration.Configure().Add()

    http://ayende.com/blog/3947/nhibernate-mapping-database-object

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