MedianFunction

sql_cli::sql::aggregates::functions

Struct MedianFunction

pub struct MedianFunction;

Expand description

MEDIAN(column) - finds the median value

Trait Implementations§

impl AggregateFunction for MedianFunction

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 MedianFunction

impl RefUnwindSafe for MedianFunction

impl Send for MedianFunction

impl Sync for MedianFunction

impl Unpin for MedianFunction

impl UnwindSafe for MedianFunction

Blanket Implementations§

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

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Returns the argument unchanged.

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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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