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       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

                                  12 May 2010                 SLONIK DEFINE(7)