What file statistics does Optimize return & How can I use them to my advantage?

[Anand_Ladda]

Optimize is largely designed as a data organization strategy for Delta Tables. Its help by compacting small files, collecting columns stats to help with data skipping and also Z-ordering of data if that's called explicitly can help with both read/write performance on Delta Tables. See this for additional details - https://docs.databricks.com/delta/optimizations/file-mgmt.html