Errors updating existing SQL Server Schema with 5.3.5

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Uwe Laas

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Dec 1, 2020, 10:56:47 AM12/1/20

to nhusers

Hello,

we have a mapping using union subclass inheritence and indexes defined on a property in the base class. After updating from NH 5.2.7 to 5.3.5 updating the database schema results in an error in all descendents telling that "the index or statistics ... already axists".

The indixes were already there before the schema update and NH seems to try to create them again.

Has something changed within NH so we have to adjust our mapping or is this a bug?