Koen Serneels (
https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%...
) *updated* an issue
Hibernate ORM (
https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiNjE4NGM0YTQ2...
) / Bug (
https://hibernate.atlassian.net/browse/HHH-14054?atlOrigin=eyJpIjoiNjE4NG...
) HHH-14054 (
https://hibernate.atlassian.net/browse/HHH-14054?atlOrigin=eyJpIjoiNjE4NG...
) Hibernate insert/update ordering wrt unique constraints (
https://hibernate.atlassian.net/browse/HHH-14054?atlOrigin=eyJpIjoiNjE4NG...
)
Change By: Koen Serneels (
https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%...
)
Hi. In the example created for this issue (please see:
[
https://github.com/koen-serneels/hibernate-uc-violation|https://github.co...])
is an entity with a single property ‘value’ and unique constraint. Initially there is an
existing instance with it’s property ‘value’ equal to ‘val1’. When we now do following
within the same transaction:
* change the value on the existing entity from “val1” to “val2”
* add a new entity with “val1”
We get a ConstraintViolationException because Hibernate is executing the insert before the
update. Now, is this actually expected knowing that Hibernate knows about the unique
constraint and that it would make more sense to perform the insert after the update or is
this a bug?
Btw; I posted this first on the forum
([
https://discourse.hibernate.org/t/hibernate-insert-update-ordering-wrt-un...]
) , but in absence of any response I started thinking this might be a bug/feature.
Thanks\!
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