You can either incorporate the key pool into an existing publication or share it as a separate publication. In this example, you create a separate publication for the primary key pool.
Create a publication for the primary key pool data.
CREATE PUBLICATION KeyPoolData ( TABLE KeyPool SUBSCRIBE BY location );
Create subscriptions for each remote database to the KeyPoolData publication.
CREATE SUBSCRIPTION TO KeyPoolData( 'user1' ) FOR user1; CREATE SUBSCRIPTION TO KeyPoolData( 'user2' ) FOR user2; ...
The subscription argument is the location identifier.
In some circumstances it makes sense to add the KeyPool table to an existing publication and use the same argument to subscribe to each publication. This example keeps the location and rep_key values distinct to provide a more general solution.