DeltasFunction

sql_cli::sql::aggregates::analytics

Struct DeltasFunction

pub struct DeltasFunction;

Trait Implementations§

impl AggregateFunction for DeltasFunction

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 DeltasFunction

impl RefUnwindSafe for DeltasFunction

impl Send for DeltasFunction

impl Sync for DeltasFunction

impl Unpin for DeltasFunction

impl UnwindSafe for DeltasFunction

Blanket Implementations§

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

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where T: ?Sized,

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Returns the argument unchanged.

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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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impl<V, T> VZip<V> for T
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