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Message Posted: Fri, 22 Nov 2002 @ 20:14:42 GMT
I understand your point, but if you stick to that approach then you won't take advantage of the newer indexing features in Teradata.
As I tried to describe below (sorry if I confused you) the Teradata optimiser now has the intelligence/ability to use an SI to cover a query. This processing is a lot faster than scanning a data table because the the SI sub-table will be a lot smaller.
I realise that you can't always take advantage of this feature (or others) but I think you're doing yourself an injustice if you follow an approach which will preclude it.
(Sorry, rant over...)
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