Re: pg_depend

> Then we have an pg_depend entry e.g.
> 
>     pg_class_relid
>     oid of the view_a
>     pg_class_relid
>     oid of the table a
>     'a' the name of the table
> 
> and so on.
> 
>  drop table a; (unadorned drop).
> 
> Then the above entry would be changed to
> 
>     pg_class_relid(unchanged)
>     oid of the view_s(unchagned)
>     pg_class_relid(unchanged)
>     InvalidOid
>     'a' the name of the table(unchanged)
> 
>  create table a (...);
> 
> Then the pg_depend entry would be
> 
>     pg_class_relid(unchanged)
>     oid of the view_s(unchagned)
>     pg_class_relid(unchanged)
>     the oid of the new table a
>     'a' the name of the table(unchanged)

So you want to keep the name of the referenced object in case it is
dropped.  Makes sense.

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