> Those parameters are specified when you declare the > foreign key. Look here, > in the section describing "references": > http://www.postgresql.org/docs/8.1/interactive/sql-createtable.html > > Luca Thank you,Luca I know that these parameters are specified when you declare the foreign key, but i need to check them out later from the system tables. The first one must be something like the 'deferrable' column in pg_constaint, but the second is still in vague. Emil __________________________________________ Yahoo! DSL ? Something to write home about. Just $16.99/mo. or less. dsl.yahoo.com