Provided by: slony1-doc_1.2.15-1_all bug


        DEFINE - Defining a named symbol


        define [ name ] [ value ]


        This  defines a named symbol. Symbol names must follow the slonik rules
        for constructing identifiers, by starting with a  letter,  followed  by
        letters, numbers, and underscores.
        Symbol  values  may  contain  spaces and may recursively contain symbol
        Symbols are referenced by using a ‘@’ followed by the symbol name. Note
        that symbol referencing is suppressed inside string literals.


        define    cluster movies;
        define    sakai   1;
        define    chen    2;
        define    fqn     fully qualified name;
        cluster name = @cluster;
        node @sakai admin conninfo = ’service=sakai-replication’;
        node @chen  admin conninfo = ’service=chen-replication’;
        define setMovies    id = 1;
        define sakaiMovies  @setMovies, origin = @sakai;
        create set ( @sakaiMovies, comment = ’movies’ );
        set add table( set @sakaiMovies, id = 1, @fqn = ’public.customers’,
                       comment = ’sakai customers’ );
        set add table( set @sakaiMovies, id = 2, @fqn = ’public.tapes’,
                       comment = ’sakai tapes’ );
        echo ’But @sakaiMovies will display as a string, and is not expanded’;
        This command was introduced in Slony-I 1.1
                                17 November 2008                      DEFINE(7)