SumFunction

sql_cli::sql::aggregates::functions

Struct SumFunction

pub struct SumFunction;

Expand description

SUM(column) - sums numeric values

Trait Implementations§

impl AggregateFunction for SumFunction

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 SumFunction

impl RefUnwindSafe for SumFunction

impl Send for SumFunction

impl Sync for SumFunction

impl Unpin for SumFunction

impl UnwindSafe for SumFunction

Blanket Implementations§

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

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where U: TryFrom<T>,

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