[hibernate-dev] Dialect#remapSqlTypeDescriptor

andrea boriero andrea at hibernate.org
Fri Sep 30 10:45:55 EDT 2016


reading the jira comments I think yes we should.

On 30 September 2016 at 15:11, Steve Ebersole <steve at hibernate.org> wrote:

> TLDR: Should we adjust to allow Dialect to know the "context" of where the
> remapping is requested?
>
> Ah Oracle...
>
> So this comes from the fact that Oracle does not support a BOOLEAN
> datatype.  Well kind of.  It does not support a BOOLEAN datatype in its
> "SQL engine".  However, in PL/SQL it does in fact support a BOOLEAN
> datatype.  Which comes into play when we talk about calling functions and
> procedures: the arguments and returns can in fact be a BOOLEAN.
>
> As far as I know, Oracle is the only database with this type of
> inconsistency in its type system.  But the question is whether we want to
> pass along some kind of information regarding the context (SQL v function v
> procedure) to the Dialect#remapSqlTypeDescriptor.
>
> You can look at https://hibernate.atlassian.net/browse/HHH-11141 for an
> illustration of how this impacts applications.  And if you look through the
> comments you can see the kind-of-crazy workaround needed.
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