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Message Posted: Tue, 29 May 2001 @ 14:11:03 GMT


     
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Subj:   Teradata Compress
 
From:   Al Czajkowski

We consider all columns as candidates for compress and use it regularly. In one database, all non-key columns are compressed - tables have 80 - 130 columns each. We have documented performance improvements relative to these compressed tables in all areas - 30% in load (we m-load these), varying in query, 60% in space usage, and 60% in archive. The individual rows in these tables do not get updated.

Electronically

Allen J. Czajkowski
DBA Supervisor, Data Warehousing
Ford Motor Credit Company



     
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