Struct ReverseScanOption (3.3.0-rc)

3.3.0-rc 3.2.0 (latest) 2.48.0-rc 2.47.0 2.46.0 2.45.0 2.44.0 2.43.0 2.42.0 2.41.0 2.40.0 2.39.0 2.38.0 2.37.0 2.36.0 2.35.0 2.34.0 2.33.0 2.32.0 2.31.0 2.30.0 2.29.0 2.28.0 2.27.0 2.26.0 2.25.1 2.24.0 2.23.0 2.22.1 2.21.0 2.20.0 2.19.0 2.18.0 2.17.0 2.16.0 2.15.1 2.14.0 2.13.0 2.12.0 2.11.0

Read rows in reverse order.

The rows will be streamed in reverse lexicographic order of the keys. This is particularly useful to get the last N records before a key.

This option does not affect the contents of the rows, just the order that the rows are returned.

Note: When using this option, the order of row keys in a bigtable::RowRange does not change. The row keys still must be supplied in lexicographic order.

  namespace cbt = ::google::cloud::bigtable;
  using ::google::cloud::Options;
  using ::google::cloud::StatusOr;
  [](cbt::Table table) {
    // Read and print the rows.
    auto reader = table.ReadRows(
        cbt::RowRange::RightOpen("phone#5c10102", "phone#5c10103"), 3,
        cbt::Filter::PassAllFilter(),
        Options{}.set<cbt::ReverseScanOption>(true));
    for (StatusOr<cbt::Row>& row : reader) {
      if (!row) throw std::move(row).status();
      PrintRow(*row);
    }
  }

See Also

https://cloud.google.com/bigtable/docs/reads#reverse-scan

Type Aliases

Type

Alias Of: bool