Hello! I can't find where C* stores information about partitions size (if stores it at all). So, the questions;
1. How to obtain the size (in rows or in bytes - doesn't matter) of some particular partition? I know that there is *system.size_estimates* table with *mean_partition_size*, but it's only mean size among all partitions. 2. How to obtain the size of entire table? Again, does "mean_partition_size * partitions_count" (fields from *system.size_estimates* table) == real size of the table? 3. Is it possible to obtain size of rows by some clustering key within some partition? Maybe one can obtain these information using Java driver or from C* system tables?