[hibernate-dev] Boolean with null values and SAP SQL Anywhere

Steve Ebersole steve at hibernate.org
Fri Nov 2 11:14:34 EDT 2018

In the general sense, it ultimately comes down to how one views the
situation.  Is it a bug?  Then I think it is reasonable to just change it
and mention it in the migration guide.  If it is an enhancement, then I
think a setting makes sense to control this.

Honestly though, not sure this has a big compatibility impact.

On Fri, Nov 2, 2018 at 10:00 AM Guillaume Smet <guillaume.smet at gmail.com>

> Hi,
> Quite some time ago, someone opened
> https://hibernate.atlassian.net/browse/HHH-12850 stating that null values
> were not supported for Booleans with SAP SQL Anywhere.
> This is due to the fact that null values are not supported for bits and we
> should use a tinyint. Interestingly enough, it was fixed for Sybase here:
> https://hibernate.atlassian.net/browse/HHH-5413 .
> Changing this will probably lead to compatibility issues but I think a note
> in the migration guide requiring a migration from bit to tinyint would be
> sufficient and 5.4.0 would be a good opportunity to do it.
> Thoughts?
> --
> Guillaume
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