![preserve_source_format option [database]](gif/backward.gif)
Controls updates to the primary key columns of tables involved in publications.
On, Off
On
Setting this option to On disallows updates to the primary key columns of tables that are part of a publication. This option helps ensure data integrity, especially in a replication and synchronization environment.
| Caution
It is strongly recommended that you do not set this option to Off in a synchronization or replication environment. |