Re: Are views created 'on the fly'

richard terry <rterry@pacific.net.au> wrote:

> I had an occasion to generate a unique key on a complex view and noticed that
> every time I opened the view in pgAdmin, that the start key changes, does
> that mean that every time one references a view it is created 'on the fly',
> before you query it for data?

A VIEW is nothing else than a stored query. Every time you query the
VIEW, your query is replaced by the definition of the view.

You need a unique key on that view? Well, you can use PG 8.4 and its
build-in row_number(() - function.


Andreas
--
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unintentional side effect.                              (Linus Torvalds)
"If I was god, I would recompile penguin with --enable-fly."   (unknown)
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