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Message Posted: Tue, 13 Jan 2009 @ 12:52:13 GMT


     
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Subj:   Re: Performance related issues in full statistics
 
From:   DWellman

Hi Rit,

(Sorry for the delayed response)

Based on the information that you've given it looks like this table is @ 234GB in size which is going to have three full table scans to re- collect all stats.

I should also have asked - what size is your Teradata system ? Number and types of Nodes.

How long does a full table scan take against this table ? The Collect Stats processing will probably be longer because it will skew (heavily!).


Cheers,

Dave

Ward Analytics Ltd: Information in motion (www.ward-analytics.com)



     
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