Christian Beikov ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *created* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiYWNlOTc1YzYx... ) / Improvement ( https://hibernate.atlassian.net/browse/HHH-15443?atlOrigin=eyJpIjoiYWNlOT... ) HHH-15443 ( https://hibernate.atlassian.net/browse/HHH-15443?atlOrigin=eyJpIjoiYWNlOT... ) Support custom DDL types also if JDBC driver classes are invisible ( https://hibernate.atlassian.net/browse/HHH-15443?atlOrigin=eyJpIjoiYWNlOT... ) Issue Type: Improvement Affects Versions: 6.1.2 Assignee: Unassigned Components: hibernate-core Created: 08/Aug/2022 10:37 AM Fix Versions: 6.1.3 Priority: Major Reporter: Christian Beikov ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) After https://hibernate.atlassian.net/browse/HHH-15438 ( https://hibernate.atlassian.net/browse/HHH-15438 ) we will not register certain JdbcType and DdlType entries anymore if the JDBC driver classes for reading/writing data are not visible. Very often, we can handle this by introducing casts for expressions that infer this type e.g. parameter markers for insert etc. I suggest we introduce the following default methods in JdbcType : default String wrapReadExpression( String readExpression) { return readExpression; } default String wrapWriteExpression( String writeExpression) { return writeExpression; } We can then register custom JdbcType implementations that bind/extract e.g. JSON as plain String. For geometry , geography , interval and inet we will probably also have to encode the data as String and hence also wrap the readExpression with a cast to String. ( https://hibernate.atlassian.net/browse/HHH-15443#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-15443#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#100204- sha1:3bd651e )