[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-2966) Create table fails for SchemaExport when a column is mapped again with insert="false" update="false"

Create table fails for SchemaExport when a column is mapped again with insert="false" update="false" ---------------------------------------------------------------------------------------------------- Key: HHH-2966 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2966 Project: Hibernate3 Issue Type: Bug Components: core Affects Versions: 3.2.5 Environment: Hibernate-3.2.5, Hsqldb-1.8.0.7 Reporter: Varghese C V Attachments: org.hibernate.mapping.Table.patch, repeated-column-mapping-test-case.zip AbstractCustomer mapping : <hibernate-mapping> <class name="org.hibernate.test.schemaexport.AbstractCustomer" abstract="true"> <id name="id" type="java.lang.String"> <column name="ID" length="20" /> <generator class="assigned" /> </id> <property name="countryCode" type="java.lang.String"> <column name="COUNTRY_CODE" length="2" /> </property> </class> </hibernate-mapping> CorporateCustomer mapping : <hibernate-mapping> <union-subclass name="org.hibernate.test.schemaexport.CorporateCustomer" extends="org.hibernate.test.schemaexport.AbstractCustomer"> <many-to-one name="country" class="org.hibernate.test.schemaexport.Country" insert="false" update="false"> <column name="COUNTRY_CODE" length="2" /> </many-to-one> </union-subclass> </hibernate-mapping> For these mappings, the ddl generated by SchemaExport contains the COUNTRY_CODE twice. Generated Sql create table CorporateCustomer ( ID varchar(20) not null, COUNTRY_CODE varchar(2), COUNTRY_CODE varchar(2), primary key (ID) ) I have attached a test case that reproduces this. I have also attached a patch to org.hibernate.mapping.Table to fix this problem. The patch is simply to skip the duplicate columns when the sql is being generated. Please do verify.