<changelog xmlns="http://www.codesynthesis.com/xmlns/odb/changelog" database="oracle" version="1"> <changeset version="2"> <alter-table name="object"> <add-column name="y" type="NUMBER(10)" null="false"/> <add-index name="xy_i" type="UNIQUE"> <column name="x"/> <column name="y" options="DESC"/> </add-index> </alter-table> </changeset> <model version="1"> <table name="object" kind="object"> <column name="id" type="NUMBER(10)" null="false"/> <column name="x" type="NUMBER(10)" null="false"/> <primary-key auto="true" sequence="object_seq"> <column name="id"/> </primary-key> </table> </model> </changelog>