Trait tidb_query_expr::impl_string::Locate3ArgsUtf8_Fn

trait Locate3ArgsUtf8_Fn<C: Collator> {
    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: Collator, Arg2_: RpnFnArg<Type = Option<&'arg_ Int>>, Arg1_: RpnFnArg<Type = Option<BytesRef<'arg_>>>, Arg0_: RpnFnArg<Type = Option<BytesRef<'arg_>>>> Locate3ArgsUtf8_Fn<C> for Arg<Arg0_, Arg<Arg1_, Arg<Arg2_, Null>>>

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

impl<C: Collator, D_: ArgDef> Locate3ArgsUtf8_Fn<C> for D_

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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