Tom Lane wrote:
> What do you consider "selected"? Given a view defined as
>
> select a, b, c+d as sum from tab where e > 42;
>
> what output are you wishing for?
>
> AFAIR the dependency mechanism will treat a,b,c,d,e alike. To do more
> you'd need to grovel through the pg_rewrite expression for the view's
> select rule, which'd be excruciatingly painful from a client program
> for lack of any supporting code.
>
> regards, tom lane
>
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Sorry for not being overly accurate, I didn't consider a view with
expressions as columns, they slipped my mind, because the views I was
interested in contain only table columns, no expressions whatsoever.
But seems you're right, there's no easy way to extract underlying
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