Trait engine_traits::range_properties::RangePropertiesExt[−][src]

pub trait RangePropertiesExt {
    fn get_range_approximate_keys(
        &self, 
        range: Range<'_>, 
        large_threshold: u64
    ) -> Result<u64>;

    fn get_range_approximate_keys_cf(
        &self, 
        cfname: &str, 
        range: Range<'_>, 
        large_threshold: u64
    ) -> Result<u64>;

    fn get_range_approximate_size(
        &self, 
        range: Range<'_>, 
        large_threshold: u64
    ) -> Result<u64>;

    fn get_range_approximate_size_cf(
        &self, 
        cfname: &str, 
        range: Range<'_>, 
        large_threshold: u64
    ) -> Result<u64>;

    fn get_range_approximate_split_keys(
        &self, 
        range: Range<'_>, 
        key_count: usize
    ) -> Result<Vec<Vec<u8>>>;

    fn get_range_approximate_split_keys_cf(
        &self, 
        cfname: &str, 
        range: Range<'_>, 
        key_count: usize
    ) -> Result<Vec<Vec<u8>>>;
}

Required methods

fn get_range_approximate_keys(
    &self,
    range: Range<'_>,
    large_threshold: u64
) -> Result<u64>[src]

Gets the number of keys in a range.

fn get_range_approximate_keys_cf(
    &self,
    cfname: &str,
    range: Range<'_>,
    large_threshold: u64
) -> Result<u64>[src]

fn get_range_approximate_size(
    &self,
    range: Range<'_>,
    large_threshold: u64
) -> Result<u64>[src]

Get the approximate size of the range

fn get_range_approximate_size_cf(
    &self,
    cfname: &str,
    range: Range<'_>,
    large_threshold: u64
) -> Result<u64>[src]

fn get_range_approximate_split_keys(
    &self,
    range: Range<'_>,
    key_count: usize
) -> Result<Vec<Vec<u8>>>[src]

Get range approximate split keys to split range evenly into key_count + 1 parts .

fn get_range_approximate_split_keys_cf(
    &self,
    cfname: &str,
    range: Range<'_>,
    key_count: usize
) -> Result<Vec<Vec<u8>>>[src]

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Implementors

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