On Wed, Nov 26, 2008 at 02:26:27PM +0100, Frederik Ramm wrote: > I have never used that distinction for anything. It is implicit in the > object id anyway - any node that is less than the maximum id has existed > at some point in time because we have auto increments ;-) and any node > with a higher id that the maximum has never existed.
That a sequence is actually contiguous is a big assumption and probably dependent on the DBMS. What the current spec says is a different matter (I don’t know, SQL92 certainly doesn’t define sequences). Simon -- A complex system that works is invariably found to have evolved from a simple system that works.—John Gall
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