struct Empty {
return_type: DataType,
}Fields§
§return_type: DataTypeTrait Implementations§
Source§impl TableFunction for Empty
impl TableFunction for Empty
Source§fn return_type(&self) -> DataType
fn return_type(&self) -> DataType
The data type of the output.
Source§fn eval<'a, 'async_trait>(
&'a self,
_input: &'a DataChunk,
) -> Pin<Box<dyn Future<Output = BoxStream<'a, Result<DataChunk>>> + Send + 'async_trait>>where
Self: 'async_trait,
'a: 'async_trait,
fn eval<'a, 'async_trait>(
&'a self,
_input: &'a DataChunk,
) -> Pin<Box<dyn Future<Output = BoxStream<'a, Result<DataChunk>>> + Send + 'async_trait>>where
Self: 'async_trait,
'a: 'async_trait,
Contract of the output Read more
fn boxed(self) -> BoxedTableFunction
Auto Trait Implementations§
impl Freeze for Empty
impl RefUnwindSafe for Empty
impl Send for Empty
impl Sync for Empty
impl Unpin for Empty
impl UnwindSafe for Empty
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metric_level: MetricLevel,
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Equivalent to
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