Type Definition tidb_query_datatype::codec::data_type::Real

type Real = NotNan<f64>;

Trait Implementations

impl AsMySQLBool for Real

fn as_mysql_bool(&self, _context: &mut EvalContext) -> Result<bool>

Evaluates into a MySQL logic value.

impl ConvertTo<Decimal> for Real

fn convert(&self, ctx: &mut EvalContext) -> Result<Decimal>

Converts the given value to T value

impl ConvertTo<Json> for Real

fn convert(&self, _: &mut EvalContext) -> Result<Json>

Converts the given value to T value

impl Evaluable for Real

const EVAL_TYPE: EvalType

fn borrow_scalar_value(v: &ScalarValue) -> Option<&Self>

Borrows this concrete type from a ScalarValue in the same type; panics if the varient mismatches.

fn borrow_scalar_value_ref<'a>(v: ScalarValueRef<'a>) -> Option<&'a Self>

Borrows this concrete type from a ScalarValueRef in the same type; panics if the varient mismatches.

fn borrow_vector_value(v: &VectorValue) -> &ChunkedVecSized<Real>

Borrows a slice of this concrete type from a VectorValue in the same type; panics if the varient mismatches.

impl EvaluableRet for Real

const EVAL_TYPE: EvalType

type ChunkedType = ChunkedVecSized<Self>

fn cast_chunk_into_vector_value(vec: ChunkedVecSized<Self>) -> VectorValue

Converts a vector of this concrete type into a VectorValue in the same type; panics if the varient mismatches.

impl ToInt for Real

fn to_int(&self, ctx: &mut EvalContext, tp: FieldTypeTp) -> Result<i64>

Converts the given value to an i64

fn to_uint(&self, ctx: &mut EvalContext, tp: FieldTypeTp) -> Result<u64>

Converts the given value to an u64