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Home/ Questions/Q 4026792
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Editorial Team
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Editorial Team
Asked: May 20, 20262026-05-20T11:00:59+00:00 2026-05-20T11:00:59+00:00

I am using NH to map c#-double values into SQL Server 2005 as floats.

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I am using NH to map c#-double values into SQL Server 2005 as floats.
Everything works perfectly fine, however recently I tried running the SchemaValidator.

SchemaValidator fails:

Found: float, Expected DOUBLE PRECISION

Creating the tables using DOUBLE PRECISION works, but SQL Server will report the columns as float

Am I missing something here, or is this a (minor) bug in NHibernates type-Mapping?

EDIT:
This bug is fixed in the 2014-06-27 release: NHibernate-4.0.0.Alpha2

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  1. Editorial Team
    Editorial Team
    2026-05-20T11:01:00+00:00Added an answer on May 20, 2026 at 11:01 am

    Float(53) or just float in SQL Server has the same precision as C# double, so it would be a bug in the validator.

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