[nhibernate-issues] [JIRA] Created: (NH-823) Duplicate column names should generate NH exception, not ADO.NET

[NHibernate J. <mik...@us...>]

Duplicate column names should generate NH exception, not ADO.NET
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         Key: NH-823
         URL: http://jira.nhibernate.org/browse/NH-823
     Project: NHibernate
        Type: Bug
    Versions: 1.2.0.Beta2   =20
    Reporter: Andr=C3=A9s G. Aragoneses
    Priority: Trivial


I have found that, if you have a mapping with duplicated name properties, s=
uch:

<hibernate-mapping xmlns=3D"urn:nhibernate-mapping-2.0" default-lazy=3D"tru=
e">
  <class name=3D"Language, DataModel" table=3D"IRM_LANGUAGES"
         dynamic-update=3D"true">
    <id name=3D"IdLanguage" column=3D"IdLanguage" unsaved-value=3D"0">
      <generator class=3D"native" />
    </id>
    <many-to-one name=3D"Type" column=3D"IdLanguage" not-null=3D"true" />

  </class>
</hibernate-mapping>

Here, there is a typo because the column of the many-to-one tag is the same=
 as the column of the ID. We have found that, in this case, instead of warn=
ing the user about the wrong mapping file, the exception is thrown when the=
 query is sent to the database.

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