alter + preserving dependencies

From: Andrew Dunstan <andrew(at)dunslane(dot)net>
To: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: alter + preserving dependencies
Date: 2008-05-06 17:14:16
Message-ID: 482091E8.1050806@dunslane.net
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I have a client who is looking for a way to be able to alter objects
without having to recreate (say, from a dump) all the objects in a
possibly large dependency tree rooted at the object. Of course, if the
alteration invalidates the dependency, than this operation should fail,
but adding a column to a view or table (which is our most common case)
should arguably be a benign operation that shouldn't fail because of
dependencies.

I couldn't see anything in the TODO list that seemed appropriate, in a
quick scan.

Thoughts?

cheers

andrew

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