Re: Constraint documentation

Hello lætitia,

My 0.02 € to try to simplify the suggested documentation.

> Check constraint were not

are not

> designed to enforce business rules across tables.

> Avoid using check constraints with function accessing to other tables

accessing other tables (no "to")

> and prefer triggers instead (please refer to <xref linkend="triggers"/> 
> for more information about triggers).

... and use <xref linkend="triggers"/> instead.

> PostgreSQL won't prevent you from doing so,

Although PostgreSQL ... so,

> but be aware you might encounter difficulties to restore dumps 
> (generated with pg_dump or pg_dumpall) if you do.

beware that dumps generated by <application>pg_*<...> or <...> may be hard 
to restore because of such checks, as the underlying dependencies are not 
taken into account.

-- 
Fabien.