Replication Agent creates objects in the primary database to assist with replication tasks.
The Replication Agent objects are created by invoking the ra_admin command with the init keyword. When you invoke this command, Replication Agent generates a SQL script that contains the SQL statements for the objects created or modified in the primary database. This script is stored in the partinit.sql file in the RAX-15_5\inst_name\scripts\xlog directory. You must create these objects before marking any primary database objects for replication.
See the Replication Agent Administration Guide.