Marco Belladelli ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=637b480... ) *updated* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiMjllYzdhMDIx... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-16112?atlOrigin=eyJpIjoiMjllYz... ) HHH-16112 ( https://hibernate.atlassian.net/browse/HHH-16112?atlOrigin=eyJpIjoiMjllYz... ) Using hibernate.jdbc.batch_size configuration causes BatchedTooManyRowsAffectedException for OneToMany relationship with orphan removal ( https://hibernate.atlassian.net/browse/HHH-16112?atlOrigin=eyJpIjoiMjllYz... ) Change By: Marco Belladelli ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=637b480... ) Summary: Using hibernate.jdbc.batch_size configuration , merge operation to remove a child of entities raises causes BatchedTooManyRowsAffectedException if the child to be removed also has for OneToMany relationship to other children that has to be removed as orphans. with orphan removal ( https://hibernate.atlassian.net/browse/HHH-16112#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16112#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#100214- sha1:6115380 )