Trait ScalarSparqlOpImpl 

pub trait ScalarSparqlOpImpl<TEncoding>
where
    TEncoding: TermEncoding,
{
    // Required methods
    fn return_type(&self) -> DataType;
    fn invoke(
        &self,
        args: ScalarSparqlOpArgs<TEncoding>,
    ) -> Result<ColumnarValue, DataFusionError>;
}

Required Methods

fn return_type(&self) -> DataType

Returns the return type of this operation.

fn invoke( &self, args: ScalarSparqlOpArgs<TEncoding>, ) -> Result<ColumnarValue, DataFusionError>

Invokes the operation on the given args.

Implementors

impl<TEncoding> ScalarSparqlOpImpl<TEncoding> for ClosureSparqlOpImpl<TEncoding>

where TEncoding: TermEncoding,