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Message Posted: Wed, 05 Jul 2006 @ 17:23:48 GMT


     
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Subj:   Re: Questions about Volatile tables
 
From:   Pankow, Jeff

  It is known to be in the MERGE step; i.e. populating the volatile table.  


Check the Primary Index uniqueness. Too many values for a particular PI could cause extra time spent in the MERGE.


  Can one look at the volatile table; perhaps even it's size or something else by which the progress of populating can be monitored?  


Volitile tables are created in a user's spool space. Check spool usage for each amp from dbc.allspace for the user (ie - select * from dbc.diskspace where databasename = 'USERID'). Look at column 'CurrentSpool'.


Jeff Pankow
RDW Technical Consultant
Teradata



     
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