Vlad Mihalcea ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *commented* on HHH-12338 ( https://hibernate.atlassian.net/browse/HHH-12338?atlOrigin=eyJpIjoiZWNhMz... ) Re: Incorrect metamodel for basic collections ( https://hibernate.atlassian.net/browse/HHH-12338?atlOrigin=eyJpIjoiZWNhMz... ) Chris Cranford ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) You are right that the spec does not cover this issue, but the spec does not take into consideration the use case when you’d want to map a List , Set , or Map to a JSON column in the database or when you want to map a List entity attribute to a PostgreSQL ARRAY column type. Currently, this issue affects the Hibernate Types project as, even if the basic attribute is a List , it’s still a basic attribute, not a parent-child association that can be used in a JOIN. I will provide a PR to address this issue, and I’d appreciate if you take a look at it. ( https://hibernate.atlassian.net/browse/HHH-12338#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-12338#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#100121- sha1:96a3924 )