Re: What's ETA for read/write Views?

From: Peter Eisentraut <peter_e(at)gmx(dot)net>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Timothy Covell <dirac(at)applink(dot)net>, pgsql-sql(at)postgresql(dot)org
Subject: Re: What's ETA for read/write Views?
Date: 2000-08-04 21:59:09
Message-ID: Pine.LNX.4.21.0008042314290.1568-100000@localhost.localdomain
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Tom Lane writes:

> Some people seem to think that the system should try to intuit
> those rules for them, but I don't believe that's either possible
> or desirable. The entire point of a view is that it's not an
> exact image of the underlying data, so how is a machine going to
> figure out what you want an update on the view to do?

The SQL standard has pretty precise rules for when views are updatable and
how.

--
Peter Eisentraut Sernanders väg 10:115
peter_e(at)gmx(dot)net 75262 Uppsala
http://yi.org/peter-e/ Sweden

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