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Index should be fully optmized
Message
From
05/11/2006 06:01:51
 
 
To
04/11/2006 21:57:33
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Environment versions
Visual FoxPro:
VFP 9 SP1
OS:
Windows XP SP2
Database:
Visual FoxPro
Miscellaneous
Thread ID:
01167140
Message ID:
01167172
Views:
8
>>If you didn't need the deleted() tag before you might check that creating it for that particular query doesn't slow down other queries. No really *good* choices here, but still you can try to find the lesser evil.
>
>The result is significant when having it. It is really slow without it so I guess I will have to request the addition of that tag on the production table.

But if the deleted()- index slows down other queries significantly, you could
set dele off
*-- count with a compound index handling deleted and filter condition
set dele on
to keep the speed in the count and have no deleted() index. But if the index on the integer filed is used elsewhere, you could have a proliferation of tags, which is bad in itself. As I said, no really *good* choices <g>.

regards

thomas
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