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Indexing and Joins
Message
From
07/08/2001 10:49:19
 
 
To
07/08/2001 09:53:48
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Miscellaneous
Thread ID:
00540551
Message ID:
00540691
Views:
24
Tamar,

SNIP

It seems pretty clear that Rushmore will use any available index, whether it will speed things up or not. Of course "any available" has to be one (or more) that is relevant to the query at hand.

I've seen temp indexes created too, but don't see the relevance to the issue you've replied to.

I'd certainly like to see more "intelligence" applied in Rushmore. One of the first would be assessing the variation of an index' initial nodes and rejecting its use in many circumstances.

>
>No, Rushmore looks at available indexes to see whether any of them will speed up the operation. If you look at SYS(3054) output, sometimes you'll see that VFP uses a temp index even when there's one available.
>
>Tamar
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