Struct Date

#[repr(transparent)]
pub struct Date(pub NaiveDate);

Tuple Fields

0: NaiveDate

Implementations

impl Date

pub const MIN: Self = _

pub fn new(data: NaiveDate) -> Self

impl Date

pub fn with_days_since_ce(days: i32) -> Result<Self, InvalidParamsError>

pub fn with_days_since_unix_epoch(days: i32) -> Result<Self, InvalidParamsError>

pub fn get_nums_days_unix_epoch(&self) -> i32

pub fn from_protobuf(cur: &mut Cursor<&[u8]>) -> ArrayResult<Date>

pub fn to_protobuf<T: Write>(self, output: &mut T) -> ArrayResult<usize>

pub fn from_ymd_uncheck(year: i32, month: u32, day: u32) -> Self

pub fn from_num_days_from_ce_uncheck(days: i32) -> Self

pub fn and_hms_uncheck(self, hour: u32, min: u32, sec: u32) -> Timestamp

pub fn and_hms_micro_uncheck( self, hour: u32, min: u32, sec: u32, micro: u32, ) -> Timestamp

Trait Implementations

impl Clone for Date

fn clone(&self) -> Date

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Date

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

Formats the value using the given formatter.

impl Default for Date

fn default() -> Date

Returns the “default value” for a type.

impl Display for Date

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

Formats the value using the given formatter.

impl From<Date> for ScalarImpl

fn from(val: Date) -> Self

Converts to this type from the input type.

impl<'scalar> From<Date> for ScalarRefImpl<'scalar>

fn from(val: Date) -> Self

Converts to this type from the input type.

impl From<Date> for Timestamp

fn from(date: Date) -> Self

Converts to this type from the input type.

impl From<NaiveDate> for Date

fn from(data: NaiveDate) -> Self

Converts to this type from the input type.

impl From<Timestamp> for Date

In PostgreSQL, casting from timestamp to date discards the time part.

Example

use std::str::FromStr;

use risingwave_common::types::{Date, Timestamp};

let ts = Timestamp::from_str("1999-01-08 04:02").unwrap();
let date = Date::from(ts);
assert_eq!(date, Date::from_str("1999-01-08").unwrap());

fn from(ts: Timestamp) -> Self

Converts to this type from the input type.

impl FromIntoArrow for Date

type ArrowType = i32

The corresponding element type in the Arrow array.

fn from_arrow(value: Self::ArrowType) -> Self

fn into_arrow(self) -> Self::ArrowType

impl FromIntoArrow for Date

type ArrowType = i32

The corresponding element type in the Arrow array.

fn from_arrow(value: Self::ArrowType) -> Self

fn into_arrow(self) -> Self::ArrowType

impl<'a> FromSql<'a> for Date

fn from_sql( ty: &Type, raw: &'a [u8], ) -> Result<Self, Box<dyn Error + Sync + Send>>

Creates a new value of this type from a buffer of data of the specified Postgres Type in its binary format.

fn accepts(ty: &Type) -> bool

Determines if a value of this type can be created from the specified Postgres Type.

fn from_sql_null(ty: &Type) -> Result<Self, Box<dyn Error + Sync + Send>>

Creates a new value of this type from a NULL SQL value.

fn from_sql_nullable( ty: &Type, raw: Option<&'a [u8]>, ) -> Result<Self, Box<dyn Error + Sync + Send>>

A convenience function that delegates to from_sql and from_sql_null depending on the value of raw.

impl FromStr for Date

Parse a date from varchar.

Example

use std::str::FromStr;

use risingwave_common::types::Date;

Date::from_str("1999-01-08").unwrap();

type Err = InvalidParamsError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, InvalidParamsError>

Parses a string s to return a value of this type.

impl Hash for Date

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl HashKeyDe for Date

fn deserialize(_data_type: &DataType, buf: impl Buf) -> Self

impl HashKeySer<'_> for Date

fn serialize_into(self, buf: impl BufMut)

Serialize the scalar into the given buffer.

fn exact_size() -> Option<usize>

Returns Some if the serialized size is known for this scalar type.

fn estimated_size(self) -> usize

Returns the estimated serialized size for this scalar.

impl Ord for Date

fn cmp(&self, other: &Date) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Date

fn eq(&self, other: &Date) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Date

fn partial_cmp(&self, other: &Date) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl PrimitiveArrayItemType for Date

const DATA_TYPE: DataType = DataType::Date

The data type.

fn erase_array_type(arr: PrimitiveArray<Self>) -> ArrayImpl

A helper to convert a primitive array to ArrayImpl.

fn try_into_array(arr: ArrayImpl) -> Option<PrimitiveArray<Self>>

A helper to convert ArrayImpl to self.

fn try_into_array_ref(arr: &ArrayImpl) -> Option<&PrimitiveArray<Self>>

A helper to convert ArrayImpl to self.

fn array_type() -> ArrayType

Returns array type of the primitive array

fn to_protobuf<T: Write>(self, output: &mut T) -> ArrayResult<usize>

fn from_protobuf(cur: &mut Cursor<&[u8]>) -> ArrayResult<Self>

impl RandValue for Date

fn rand_value<R: Rng>(rand: &mut R) -> Self

impl Scalar for Date

Implement Scalar for Date.

type ScalarRefType<'a> = Date

Type for reference of Scalar

fn as_scalar_ref(&self) -> Date

Get a reference to current scalar.

fn to_scalar_value(self) -> ScalarImpl

impl ScalarRef<'_> for Date

Implement ScalarRef for Date.

type ScalarType = Date

ScalarType is the owned type of current ScalarRef.

fn to_owned_scalar(&self) -> Date

Convert ScalarRef to an owned scalar.

fn hash_scalar<H: Hasher>(&self, state: &mut H)

A wrapped hash function to get the hash value for this scaler.

impl Successor for Date

fn successor(&self) -> Option<Self>

Returns the successor of the current value if it exists, otherwise returns None.

impl ToBinary for Date

fn to_binary_with_type(&self, ty: &DataType) -> Result<Bytes, ToBinaryError>

impl ToSql for Date

fn accepts(ty: &Type) -> bool

Determines if a value of this type can be converted to the specified Postgres Type.

fn to_sql_checked( &self, ty: &Type, out: &mut BytesMut, ) -> Result<IsNull, Box<dyn Error + Sync + Send>>

An adaptor method used internally by Rust-Postgres.

fn to_sql( &self, ty: &Type, out: &mut BytesMut, ) -> Result<IsNull, Box<dyn Error + Sync + Send>>

where Self: Sized,

Converts the value of self into the binary format of the specified Postgres Type, appending it to out.

fn encode_format(&self, _ty: &Type) -> Format

Specify the encode format

impl ToText for Date

fn write<W: Write>(&self, f: &mut W) -> Result

let date = Date::from_ymd_uncheck(2001, 5, 16);
assert_eq!(date.to_string(), "2001-05-16");

let date = Date::from_ymd_uncheck(1, 10, 26);
assert_eq!(date.to_string(), "0001-10-26");

let date = Date::from_ymd_uncheck(0, 10, 26);
assert_eq!(date.to_string(), "0001-10-26 BC");

fn write_with_type<W: Write>(&self, ty: &DataType, f: &mut W) -> Result

Write the text to the writer according to its data type

fn to_text_with_type(&self, ty: &DataType) -> String

Convert to text according to its data type

fn to_text(&self) -> String

to_text is a special version of to_text_with_type, it convert the scalar to default type text. E.g. for Int64, it will convert to text as a Int64 type. We should prefer to use to_text_with_type because it’s more clear and readable.

impl TryFrom<ScalarImpl> for Date

type Error = ArrayError

The type returned in the event of a conversion error.

fn try_from(val: ScalarImpl) -> ArrayResult<Self>

Performs the conversion.

impl<'scalar> TryFrom<ScalarRefImpl<'scalar>> for Date

type Error = ArrayError

The type returned in the event of a conversion error.

fn try_from(val: ScalarRefImpl<'scalar>) -> ArrayResult<Self>

Performs the conversion.

impl<'a> WithDataType for &'a Date

fn default_data_type() -> DataType

Returns the most obvious DataType for the rust type.

impl<'a> WithDataType for &'a mut Date

fn default_data_type() -> DataType

Returns the most obvious DataType for the rust type.

impl WithDataType for Box<Date>

fn default_data_type() -> DataType

Returns the most obvious DataType for the rust type.

impl WithDataType for Date

fn default_data_type() -> DataType

Returns the most obvious DataType for the rust type.

impl Copy for Date

impl Eq for Date

impl StructuralPartialEq for Date

impl ZeroHeapSize for Date