Home Page for the TeradataForum
 
https:

Archives of the TeradataForum

Message Posted: Wed, 31 Dec 2003 @ 14:10:01 GMT


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


Subj:   Re: Identity Column Crisis
 
From:   Schroter, Andrew

Even if you use a batch size of one, each AMP would be assigned a single ID and there would be no sequential guarantee in the data load as AMP0 would be assigned ID 1 , AMP1 would be assigned ID 2 and so on (Note exact sequencing may be different). Sequencing is strictly dependent on sequence of hash values of each row being inserted.

Using Narayan's example:

Batch size =1

Amp0        : StartVal: 1
              Last val: 1

Amp1        : StartVal = 2
              Last Val = 2

AGS



     
  <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: 28 Jun 2020