Module parquet::file::statistics

Expand description

Contains definitions for working with Parquet statistics.

Though some common methods are available on enum, use pattern match to extract actual min and max values from statistics, see below:

§Examples

use parquet::file::statistics::Statistics;

let stats = Statistics::int32(Some(1), Some(10), None, Some(3), true);
assert_eq!(stats.null_count_opt(), Some(3));
assert!(stats.is_min_max_deprecated());
assert!(stats.min_is_exact());
assert!(stats.max_is_exact());

match stats {
    Statistics::Int32(ref typed) => {
        assert_eq!(typed.min_opt(), Some(&1));
        assert_eq!(typed.max_opt(), Some(&10));
    }
    _ => {}
}

Structs§

ValueStatistics
Typed statistics for one column chunk

Enums§

Statistics
Strongly typed statistics for a column chunk within a row group.

Functions§

from_thrift
Converts Thrift definition into Statistics.
to_thrift
Convert Statistics into Thrift definition.

Type Aliases§