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Message Posted: Tue, 12 Sep 2000 @ 22:35:14 GMT


     
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Subj:   Re: Inserts with Secondary Indexes
 
From:   Sam Sterling

Also, it depends on the non-uniqueness of the secondary indices. If you only have a couple of hundred values out of a couple of hundred million rows, for example, you could have a million rows for each value, and that can take time. Also, if a single value has most of the occurrences, that causes hot amps and loss of parallelism.

Dropping & recreating can help, but collect statistics and look at the distinct values, then run some queries to determine counts by value.


Hope this gives you some ideas.

Sam Sterling
Sr. Consultant
www.ssterling.com



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