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

type Real = NotNan<f64>;

Trait Implementations

impl AsMySQLBool for Real[+]

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

Evaluates into a MySQL logic value.

impl ConvertTo<Decimal> for Real[+]

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

Converts the given value to T value

impl ConvertTo<Json> for Real[+]

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

Converts the given value to T value

impl Evaluable for Real[+]

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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[+]

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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[+]

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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