risingwave_meta::hummock::manager::versioning

Function estimate_table_stats

source 
fn estimate_table_stats(sst: &SstableInfo) -> HashMap<u32, TableStats>
Expand description

Estimates table stats change from the given file.

  • The file stats is evenly distributed among multiple tables within the file.
  • The total key size and total value size are estimated based on key range and file size.
  • Branched files may lead to an overestimation.