Home Page for the TeradataForum
 

Archives of the TeradataForum

Message Posted: Sun, 01 Nov 2015 @ 07:38:35 GMT


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


Subj:   Re: Collecting Statistics on Non-Index columns
 
From:   Mark Young

It is more important to collect statistics on non-index columns that are used regularly in joins, than the index columns. If your data is distributed well, then the index column statistics obtained by random AMP sampling should suffice, if data is skewed then keep these statistics also.


Cheers



     
  <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: 23 Jun 2019