Trait HyperLogLogCommands 

pub trait HyperLogLogCommands<'a>: Sized {
    // Provided methods
    fn pfadd(
        self,
        key: impl Args,
        elements: impl Args,
    ) -> PreparedCommand<'a, Self, bool> { ... }
    fn pfcount(self, keys: impl Args) -> PreparedCommand<'a, Self, usize> { ... }
    fn pfmerge(
        self,
        dest_key: impl Args,
        source_keys: impl Args,
    ) -> PreparedCommand<'a, Self, ()> { ... }
}

A group of Redis commands related to HyperLogLog

See Also

Redis Hash Commands

Provided Methods

fn pfadd( self, key: impl Args, elements: impl Args, ) -> PreparedCommand<'a, Self, bool>

Adds the specified elements to the specified HyperLogLog.

Return

• true if at least 1 HyperLogLog inFternal register was altered.
• false otherwise.

See Also

https://redis.io/commands/pfadd/

fn pfcount(self, keys: impl Args) -> PreparedCommand<'a, Self, usize>

Return the approximated cardinality of the set(s) observed by the HyperLogLog at key(s).

Return

The approximated number of unique elements observed via PFADD.

See Also

https://redis.io/commands/pfcount/

fn pfmerge( self, dest_key: impl Args, source_keys: impl Args, ) -> PreparedCommand<'a, Self, ()>

Merge N different HyperLogLogs into a single one.

See Also

https://redis.io/commands/pfmerge/

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<'a> HyperLogLogCommands<'a> for &'a Client

impl<'a> HyperLogLogCommands<'a> for &'a mut Pipeline<'_>

impl<'a> HyperLogLogCommands<'a> for &'a mut Transaction