Margot Piva ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=70121%3... ) *commented* on HHH-16895 ( https://hibernate.atlassian.net/browse/HHH-16895?atlOrigin=eyJpIjoiMmRlYT... ) Re: @Check constraint not generated when annotated on entity ( https://hibernate.atlassian.net/browse/HHH-16895?atlOrigin=eyJpIjoiMmRlYT... ) Here is a minimal test-case : https://github.com/MargotPiva/hibernate-test-case-templates/commit/7e7439... Beware that issues does not trigger a test failure. Issue is shown by log output. The difference between both hibernate versions is shown by the logs of DDL schema generated on junit test startup. # Entity-level check constraint is generated mvn -f hibernate-orm-5/ test # Log generated create table EntityLevelCheck ( id bigint not null, myValue varchar(255), primary key (id), check (myValue <> null) ) # Entity-level check constraint is not generated mvn -f hibernate-orm-6/ test # Log generated create table EntityLevelCheck ( id bigint not null, myValue varchar(255), primary key (id) ) The field-level problem in Hibernate 5 is also illustrated by the tests : # Field-level check constraint is not generated mvn -f hibernate-orm-5/ test # Log generated create table FieldLevelCheck ( id bigint not null, myValue varchar(255), primary key (id) ) # Field-level check constraint is generated mvn -f hibernate-orm-6/ test # Log generated create table FieldLevelCheck ( id bigint not null, myValue varchar(255) check (myValue <> null), primary key (id) ) ( https://hibernate.atlassian.net/browse/HHH-16895#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16895#add-comment?atlOrigin=ey... ) Get Jira notifications on your phone! Download the Jira Cloud app for Android ( https://play.google.com/store/apps/details?id=com.atlassian.android.jira.... ) or iOS ( https://itunes.apple.com/app/apple-store/id1006972087?pt=696495&ct=Em... ) This message was sent by Atlassian Jira (v1001.0.0-SNAPSHOT#100229- sha1:634ba05 )