Home Page for the TeradataForum
 

Archives of the TeradataForum

Message Posted: Mon, 23 Aug 2004 @ 12:02:20 GMT


     
  <Prev Next>  
<<First
<Prev
Next> Last>>  


Subj:   Different Explain for identical query with different users
 
From:   Grupe Roland

Hello,

I'm currently having a problem with a small tables / large table query, where I get three different explain plans for the exact same query. The only difference is the user executing the query and only in one case does Teradata perform the way I want it to: Join small tables and redistribute to all AMPs then merge join based on PI of big table.

The query does contain a qualification on the user system variable, but I have never seen the explain change based on the user running the query. Has anybody else seen this behavior and is it a new 'feature'? Can it be prevented?

The version we're on is V2R.05.00.02.21


Thanks,

Roland



     
  <Prev Next>  
<<First
<Prev
Next> Last>>  
 
 
 
 
 
 
 
 
  
  Top Home Privacy Feedback  
 
 
Copyright for the TeradataForum (TDATA-L), Manta BlueSky    
Copyright 2016 - All Rights Reserved    
Last Modified: 27 Dec 2016