Struct tidb_query_expr::types::function::VectorArg

pub struct VectorArg<'a, T: 'a + EvaluableRef<'a>, C: 'a + ChunkRef<'a, T>> {
    physical_col: C,
    logical_rows: LogicalRows<'a>,
    _phantom: PhantomData<T>,
}

Represents an RPN function argument of a VectorValue.

Fields

physical_col: C

logical_rows: LogicalRows<'a>

_phantom: PhantomData<T>

Trait Implementations

impl<'a, T: Clone + 'a + EvaluableRef<'a>, C: Clone + 'a + ChunkRef<'a, T>> Clone for VectorArg<'a, T, C>

fn clone(&self) -> VectorArg<'a, T, C>

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a, T: Copy + 'a + EvaluableRef<'a>, C: Copy + 'a + ChunkRef<'a, T>> Copy for VectorArg<'a, T, C>

impl<'a, T: Debug + 'a + EvaluableRef<'a>, C: Debug + 'a + ChunkRef<'a, T>> Debug for VectorArg<'a, T, C>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a, T: EvaluableRef<'a>, C: 'a + ChunkRef<'a, T>> RpnFnArg for VectorArg<'a, T, C>

type Type = Option<T>

fn get(&self, row: usize) -> Option<T>

Gets the value in the given row.

fn get_bit_vec(&self) -> (Option<&BitVec>, bool)

Gets the bit vector of the arg. Returns None if scalar value, and bool indicates whether all is null or isn’t null, otherwise a BitVec. Returns Some if vector value, and bool indicates whether stored bitmap vector has the same layout as elements, aka. logical_rows is identical or not. If logical_rows is identical, the second tuple element yields true.