Enhance Index Rebuild Decision Process with Page Density Factor

[mfuller333]

Request to incorporate the page density (avg_page_space_used_in_percent) as a determining factor in deciding whether or not to rebuild the index. Given that we are using modern solid-state drives, fragmentation alone does not provide a comprehensive view of our system’s state. By considering page density, we can make more informed decisions about index rebuilds, leading to improved system performance and efficiency.