ModeFunction

sql_cli::sql::aggregates::functions

Struct ModeFunction

pub struct ModeFunction;

Expand description

MODE(column) - finds the most frequently occurring value

Trait Implementations§

impl AggregateFunction for ModeFunction

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 ModeFunction

impl RefUnwindSafe for ModeFunction

impl Send for ModeFunction

impl Sync for ModeFunction

impl Unpin for ModeFunction

impl UnwindSafe for ModeFunction

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>,

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