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Message Posted: Fri, 20 Jul 2001 @ 14:03:33 GMT


     
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Subj:   Re: Any way to speed up collect statistics
 
From:   Geoffrey Rommel

  I have a table that is over 300 gig and will eventually grow to a max of approx 600-700 gig. Collecting statistics is taking over 15 hours. Anything I can do to speed this up?  



Whoa! This sounds a bit too long to me. We have a table of about 400GB that we can collect stats on in 2-3 hours. (Our system is 15 nodes, 240 AMPs.)

Are you trying to collect stats on every column? If so, DON'T! Collect them on the primary and secondary indexes and *possibly* one or two other columns that are frequently used in joins. Drop any others.

W. Geoffrey Rommel



     
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