MK ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=70121%3... ) *updated* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiMWIxZjczMGNh... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-16945?atlOrigin=eyJpIjoiMWIxZj... ) HHH-16945 ( https://hibernate.atlassian.net/browse/HHH-16945?atlOrigin=eyJpIjoiMWIxZj... ) CTE query cycle attribute evaluated incorrectly on MSSQL using collation "Latin1_General_CI_AS" ( https://hibernate.atlassian.net/browse/HHH-16945?atlOrigin=eyJpIjoiMWIxZj... ) Change By: MK ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=70121%3... ) We noticed that our recursive CTE query returns incomplete results because it does not return the whole hierarchy. We already created the Jira issue [https://hibernate.atlassian.net/browse/HHH-16465|https://hibernate.atlass...] where a fix was implemented in Hibernate 6.2.4, but it still didn’t fix the problem in our environment. When adding our unit test locally in the hibernate-orm project it passed, while it failed in our environment. I quickly suspected the collation as the culprit and indeed: Hibernate testing uses “SQL_Latin1_General_CP1_CI_AS” while we are using “Latin1_General_CI_AS”. When running the test you added ({{CteCycleTests#testRecursiveCycleClause}}) in a database with the collation “Latin1_General_CI_AS” it fails as well. Additional information: The test {{CountExpressionTest#testCountDistinctTupleSanity}}fails as well using this collation. It’s also related to char(0). ( https://hibernate.atlassian.net/browse/HHH-16945#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16945#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#100232- sha1:33a7c72 )