Morgan PEYRE ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=712020%... ) *updated* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiZjdmMmQzZDU5... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-16927?atlOrigin=eyJpIjoiZjdmMm... ) HHH-16927 ( https://hibernate.atlassian.net/browse/HHH-16927?atlOrigin=eyJpIjoiZjdmMm... ) Some NUMBER column types now get mapped to Boolean/Integer/Long instead of BigDecimal ( https://hibernate.atlassian.net/browse/HHH-16927?atlOrigin=eyJpIjoiZjdmMm... ) Change By: Morgan PEYRE ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=712020%... ) It seems that some type mappings have changed between Hibernate versions 5 and 6, is this intentional ? Here are some of the changes I’ve noticed when parsing NativeQuery results : ||*SQL Data type*||*Java type (Hibernate 5)*||*Java type (Hibernate 6)*|| |NUMBER(19,0)|java.math.BigDecimal|java.lang.Long| |NUMBER(1,0)|java.math.BigDecimal|java.lang.Integer or java.lang.Boolean| ( https://hibernate.atlassian.net/browse/HHH-16927#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16927#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#100231- sha1:2d13be9 )