The primary objective of the declarative index is to support reporting on page list properties. After the
declarative index is created, the report is usually written in the declarative index class to display the entire
list. This report is then added as a drilldown report in the other reports that are defined for the case. So
when we run the case it displays the report and we can drill down into it to see the page list.
Conclusion: Optimizing properties and creating declarative indexes when optimizing a page list property enables us to improve the BLOB processing time.