RankFunction

sql_cli::sql::aggregates::analytics

Struct RankFunction

pub struct RankFunction;

Trait Implementations§

impl AggregateFunction for RankFunction

fn name(&self) -> &'static str

Name of the function (e.g., “SUM”, “AVG”)

fn init(&self) -> AggregateState

Initialize the aggregation state

fn accumulate( &self, state: &mut AggregateState, value: &DataValue, ) -> Result<()>

Add a value to the aggregation

fn finalize(&self, state: AggregateState) -> DataValue

Finalize and return the result

fn requires_numeric(&self) -> bool

Check if this function requires numeric input

Auto Trait Implementations§

impl Freeze for RankFunction

impl RefUnwindSafe for RankFunction

impl Send for RankFunction

impl Sync for RankFunction

impl Unpin for RankFunction

impl UnwindSafe for RankFunction

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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