let tx = database.begin_read()?;
          let schema_version = tx
            .open_table(STATISTIC_TO_COUNT)?
            .get(&Statistic::Schema.key())?
            .map(|x| x.value())
            .unwrap_or(0);

          match schema_version.cmp(&SCHEMA_VERSION) {
          cmp::Ordering::Less =>
            bail!(
              "index at `{}` appears to have been built with an older, incompatible version of ord, consider deleting and rebuilding the index: index schema {schema_version}, ord schema {SCHEMA_VERSION}",
              path.display()
            ),
          cmp::Ordering::Greater =>
            bail!(
              "index at `{}` appears to have been built with a newer, incompatible version of ord, consider updating ord: index schema {schema_version}, ord schema {SCHEMA_VERSION}",
              path.display()
            ),
          cmp::Ordering::Equal => {
          }
        }

          let statistics = tx.open_table(STATISTIC_TO_COUNT)?;

          index_runes = statistics
            .get(&Statistic::IndexRunes.key())?