HHH-18869 Override Dialect.equivalentTypes in MariaDBDialect to return true for JSON vs LONGTEXT

          See https://mariadb.com/kb/en/json-data-type/

Author: cigaly

hibernate-core/src/main/java/org/hibernate/dialect/MariaDBDialect.java

@@ -6,6 +6,7 @@
 
 import java.sql.DatabaseMetaData;
 import java.sql.SQLException;
+import java.sql.Types;
 
 import org.hibernate.boot.model.FunctionContributions;
 import org.hibernate.boot.model.TypeContributions;
@@ -313,4 +314,11 @@ public IdentifierHelper buildIdentifierHelper(IdentifierHelperBuilder builder, D
 	public String getDual() {
 		return "dual";
 	}
+
+	@Override
+	public boolean equivalentTypes(int typeCode1, int typeCode2) {
+		return typeCode1 == Types.LONGVARCHAR && typeCode2 == SqlTypes.JSON
+			|| typeCode1 == SqlTypes.JSON && typeCode2 == Types.LONGVARCHAR
+			|| super.equivalentTypes( typeCode1, typeCode2 );
+	}
 }