Trait tidb_query_expr::impl_compare::Compare_Fn

trait Compare_Fn<C: Comparer> where
    C: Comparer, {
    fn eval(
        self, 
        ctx: &mut EvalContext, 
        output_rows: usize, 
        args: &[RpnStackNode<'_>], 
        extra: &mut RpnFnCallExtra<'_>, 
        metadata: &(dyn Any + Send)
    ) -> Result<VectorValue>;
}

Required methods

fn eval(
    self,
    ctx: &mut EvalContext,
    output_rows: usize,
    args: &[RpnStackNode<'_>],
    extra: &mut RpnFnCallExtra<'_>,
    metadata: &(dyn Any + Send)
) -> Result<VectorValue>

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Implementors

impl<'arg_, C: Comparer, Arg1_: RpnFnArg<Type = Option<&'arg_ C::T>>, Arg0_: RpnFnArg<Type = Option<&'arg_ C::T>>> Compare_Fn<C> for Arg<Arg0_, Arg<Arg1_, Null>> where
    C: Comparer, 

default fn eval(
    self,
    ctx: &mut EvalContext,
    output_rows: usize,
    args: &[RpnStackNode<'_>],
    extra: &mut RpnFnCallExtra<'_>,
    metadata: &(dyn Any + Send)
) -> Result<VectorValue>

impl<C: Comparer, D_: ArgDef> Compare_Fn<C> for D_ where
    C: Comparer, 

default fn eval(
    self,
    ctx: &mut EvalContext,
    output_rows: usize,
    args: &[RpnStackNode<'_>],
    extra: &mut RpnFnCallExtra<'_>,
    metadata: &(dyn Any + Send)
) -> Result<VectorValue>

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