Enum taos::ColumnView

pub enum ColumnView {
    Bool(BoolView),
    TinyInt(TinyIntView),
    SmallInt(SmallIntView),
    Int(IntView),
    BigInt(BigIntView),
    Float(FloatView),
    Double(DoubleView),
    VarChar(VarCharView),
    Timestamp(TimestampView),
    NChar(NCharView),
    UTinyInt(UTinyIntView),
    USmallInt(USmallIntView),
    UInt(UIntView),
    UBigInt(UBigIntView),
    Json(JsonView),
}

Variants

Bool(BoolView)

TinyInt(TinyIntView)

SmallInt(SmallIntView)

Int(IntView)

BigInt(BigIntView)

Float(FloatView)

Double(DoubleView)

VarChar(VarCharView)

Timestamp(TimestampView)

NChar(NCharView)

UTinyInt(UTinyIntView)

USmallInt(USmallIntView)

UInt(UIntView)

UBigInt(UBigIntView)

Json(JsonView)

Implementations

impl ColumnView

pub fn from_millis_timestamp(values: Vec<impl Into<Option<i64>>>) -> ColumnView

pub fn from_micros_timestamp(values: Vec<impl Into<Option<i64>>>) -> ColumnView

pub fn from_nanos_timestamp(values: Vec<impl Into<Option<i64>>>) -> ColumnView

pub fn from_bools(values: Vec<impl Into<Option<bool>>>) -> ColumnView

pub fn from_tiny_ints(values: Vec<impl Into<Option<i8>>>) -> ColumnView

pub fn from_small_ints(values: Vec<impl Into<Option<i16>>>) -> ColumnView

pub fn from_ints(values: Vec<impl Into<Option<i32>>>) -> ColumnView

pub fn from_big_ints(values: Vec<impl Into<Option<i64>>>) -> ColumnView

pub fn from_unsigned_tiny_ints(values: Vec<impl Into<Option<u8>>>) -> ColumnView

pub fn from_unsigned_small_ints( values: Vec<impl Into<Option<u16>>> ) -> ColumnView

pub fn from_unsigned_ints(values: Vec<impl Into<Option<u32>>>) -> ColumnView

pub fn from_unsigned_big_ints(values: Vec<impl Into<Option<u64>>>) -> ColumnView

pub fn from_floats(values: Vec<impl Into<Option<f32>>>) -> ColumnView

pub fn from_doubles(values: Vec<impl Into<Option<f64>>>) -> ColumnView

pub fn from_varchar<S, T, I, V>(iter: V) -> ColumnView

where S: AsRef<str>, T: Into<Option<S>>, I: ExactSizeIterator<Item = T>, V: IntoIterator<Item = T, IntoIter = I>,

pub fn from_nchar<S, T, I, V>(iter: V) -> ColumnView

where S: AsRef<str>, T: Into<Option<S>>, I: ExactSizeIterator<Item = T>, V: IntoIterator<Item = T, IntoIter = I>,

pub fn from_json<S, T, I, V>(iter: V) -> ColumnView

where S: AsRef<str>, T: Into<Option<S>>, I: ExactSizeIterator<Item = T>, V: IntoIterator<Item = T, IntoIter = I>,

pub fn concat_iter<'b, 'a>( &'a self, rhs: impl Iterator<Item = BorrowedValue<'b>>, ty: Ty ) -> ColumnView

where 'a: 'b,

pub fn concat(&self, rhs: &ColumnView) -> ColumnView

Concatenate another column view, output a new column view with exact type of self.

pub fn concat_strictly(&self, rhs: &ColumnView) -> ColumnView

Concatenate another column view strictly, output a new column view with exact type of self.

Panics

Panics if the two column views have different types.

pub fn concat_as(&self, rhs: &ColumnView, ty: Ty) -> ColumnView

Concatenate another column view, output a new column view with specified type ty.

pub fn null(n: usize, ty: Ty) -> ColumnView

Generate single element view for specified type ty.

pub fn len(&self) -> usize

It’s equal to the cols

pub fn max_variable_length(&self) -> usize

pub fn get(&self, row: usize) -> Option<BorrowedValue<'_>>

pub fn iter(&self) -> ColumnViewIter<'_>

pub fn slice(&self, range: Range<usize>) -> Option<ColumnView>

pub fn as_ty(&self) -> Ty

pub fn cast(&self, ty: Ty) -> Result<ColumnView, CastError>

Cast behaviors:

• BOOL to VARCHAR/NCHAR: true => “true”, false => “false”
• numeric(integers/float/double) to string(varchar/nchar): like print or to_string.
• string to primitive: can be parsed => primitive, others => null.
• timestamp to string: RFC3339 with localized timezone.

Not supported:

• any to timestamp

pub fn cast_precision(&self, precision: Precision) -> ColumnView

pub unsafe fn as_timestamp_view(&self) -> &TimestampView

Trait Implementations

impl Add for ColumnView

type Output = ColumnView

The resulting type after applying the + operator.

fn add(self, rhs: ColumnView) -> <ColumnView as Add>::Output

Performs the + operation.

impl Clone for ColumnView

fn clone(&self) -> ColumnView

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnView

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

Formats the value using the given formatter.

impl From<Value> for ColumnView

fn from(value: Value) -> ColumnView

Converts to this type from the input type.

impl From<Vec<Option<INChar>>> for ColumnView

fn from(values: Vec<Option<INChar>>) -> ColumnView

Converts to this type from the input type.

impl From<Vec<Option<IVarChar>>> for ColumnView

fn from(values: Vec<Option<IVarChar>>) -> ColumnView

Converts to this type from the input type.

impl From<Vec<Option<bool>>> for ColumnView

fn from(values: Vec<Option<bool>>) -> ColumnView

Converts to this type from the input type.

impl From<Vec<Option<f32>>> for ColumnView

fn from(values: Vec<Option<f32>>) -> ColumnView

Converts to this type from the input type.

impl From<Vec<Option<f64>>> for ColumnView

fn from(values: Vec<Option<f64>>) -> ColumnView

Converts to this type from the input type.

impl From<Vec<Option<i16>>> for ColumnView

fn from(values: Vec<Option<i16>>) -> ColumnView

Converts to this type from the input type.

impl From<Vec<Option<i32>>> for ColumnView

fn from(values: Vec<Option<i32>>) -> ColumnView

Converts to this type from the input type.

impl From<Vec<Option<i64>>> for ColumnView

fn from(values: Vec<Option<i64>>) -> ColumnView

Converts to this type from the input type.

impl From<Vec<Option<i8>>> for ColumnView

fn from(values: Vec<Option<i8>>) -> ColumnView

Converts to this type from the input type.

impl From<Vec<Option<u16>>> for ColumnView

fn from(values: Vec<Option<u16>>) -> ColumnView

Converts to this type from the input type.

impl From<Vec<Option<u32>>> for ColumnView

fn from(values: Vec<Option<u32>>) -> ColumnView

Converts to this type from the input type.

impl From<Vec<Option<u64>>> for ColumnView

fn from(values: Vec<Option<u64>>) -> ColumnView

Converts to this type from the input type.

impl From<Vec<Option<u8>>> for ColumnView

fn from(values: Vec<Option<u8>>) -> ColumnView

Converts to this type from the input type.

impl From<Vec<bool>> for ColumnView

fn from(values: Vec<bool>) -> ColumnView

Converts to this type from the input type.

impl From<Vec<f32>> for ColumnView

fn from(values: Vec<f32>) -> ColumnView

Converts to this type from the input type.

impl From<Vec<f64>> for ColumnView

fn from(values: Vec<f64>) -> ColumnView

Converts to this type from the input type.

impl From<Vec<i16>> for ColumnView

fn from(values: Vec<i16>) -> ColumnView

Converts to this type from the input type.

impl From<Vec<i32>> for ColumnView

fn from(values: Vec<i32>) -> ColumnView

Converts to this type from the input type.

impl From<Vec<i64>> for ColumnView

fn from(values: Vec<i64>) -> ColumnView

Converts to this type from the input type.

impl From<Vec<i8>> for ColumnView

fn from(values: Vec<i8>) -> ColumnView

Converts to this type from the input type.

impl From<Vec<u16>> for ColumnView

fn from(values: Vec<u16>) -> ColumnView

Converts to this type from the input type.

impl From<Vec<u32>> for ColumnView

fn from(values: Vec<u32>) -> ColumnView

Converts to this type from the input type.

impl From<Vec<u64>> for ColumnView

fn from(values: Vec<u64>) -> ColumnView

Converts to this type from the input type.

impl From<Vec<u8>> for ColumnView

fn from(values: Vec<u8>) -> ColumnView

Converts to this type from the input type.

impl<'a> IntoIterator for &'a ColumnView

type Item = BorrowedValue<'a>

The type of the elements being iterated over.

type IntoIter = ColumnViewIter<'a>

Which kind of iterator are we turning this into?

fn into_iter(self) -> <&'a ColumnView as IntoIterator>::IntoIter

Creates an iterator from a value.

impl Send for ColumnView

impl Sync for ColumnView