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Home/ Questions/Q 9275047
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Editorial Team
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Editorial Team
Asked: June 18, 20262026-06-18T16:29:50+00:00 2026-06-18T16:29:50+00:00

I have some long name classes which I store in the database using Hibernate.

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I have some long name classes which I store in the database using Hibernate.
I’ve noticed that hibernate creates the dtype column (for inheritance support) as character varying(31).
Since the class name is longer than 31 characters the insert fails.
What is the best way to resolve it?
Since I have lots of classes I prefer some global setting over adding annotation to each class.

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  1. Editorial Team
    Editorial Team
    2026-06-18T16:29:51+00:00Added an answer on June 18, 2026 at 4:29 pm

    Use @DiscriminatorValue("some_short_name") to all your subclasses. I don’t think there is any other solution.

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