Home Page for the TeradataForum
 

Archives of the TeradataForum

Message Posted: Fri, 31 Jan 2014 @ 12:36:25 GMT


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


Subj:   Re: Question on joining UPI with non unique SI
 
From:   Sughesh.Sumansingh

Hi Roopa,

Do you mean,

1. even it is NUSI, your table data for that NUSI is not skewed : then query run better.

2. now your table is not skewed based on PI - then it depends on data, system should do bit map manipulation for NUSI.


As it is NUSI, both cases system will go for bit maps.


Regards,

Sughesh.



     
  <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: 15 Jun 2023