what is optimized load and un optimized load?
Follow the below links
optimize and non-optimze load in qvd
or else go through the thread u will find what exactly it is
diffrence b/w optimized load and unoptimized load
Loading QVD without any transformations (adding extra field & expression, using where clause) called optimized load which is faster then un optimized load and vice versa.
I will recommend you to follow this document.
Best Practices for Data Modelling
Retrieving data ...