Christian Beikov ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *commented* on HHH-16216 ( https://hibernate.atlassian.net/browse/HHH-16216?atlOrigin=eyJpIjoiZmIxOT... ) Re: SybaseASEDialect creates additional not null checks ( https://hibernate.atlassian.net/browse/HHH-16216?atlOrigin=eyJpIjoiZmIxOT... ) The fact that literals also get this same treatment would be a bug. You can use the distinct from predicate in you query. select r from MyUser r where r.someProperty is not distinct from :parameter which should render to = when ansinull is disabled. ( https://hibernate.atlassian.net/browse/HHH-16216#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16216#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#100217- sha1:65be9f2 )