xmpp.chapril.org-ejabberd/sql/pgsql/mod_carboncopy.sql

CREATE TABLE carboncopy (
    username text NOT NULL,
    server_host text NOT NULL,
    resource text NOT NULL,
    namespace text NOT NULL,
    node text NOT NULL,
    PRIMARY KEY (server_host, username, resource)
);

CREATE INDEX i_carboncopy_sh_user ON carboncopy (server_host, username);