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Message Posted: Wed, 19 Mar 2003 @ 20:22:32 GMT


     
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Subj:   Re: Real size of the table
 
From:   Rob Paller

Calculate the sizes of your secondary indexes and subtract that from your CurrentPerm for the table in DBC.AllSpace.

SI index sizes can be calculated as follows:

USI: Table Row Count * (Index Value Size + 28) (Double for Fallback)

(Index Value Size = Sum of the column lengths in the index)

NUSI: (Table Row Count * 8) + (Unique Values * (Index Value Size + 20) * MIN( Number of Amps, Rows/Value)) (Double for Fallback)

Hope this helps.



     
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