[−][src]Enum parquet::data_type::Decimal

[+] Show declaration

pub enum Decimal {
    Int32 {
        value: [u8; 4],
        precision: i32,
        scale: i32,
    },
    Int64 {
        value: [u8; 8],
        precision: i32,
        scale: i32,
    },
    Bytes {
        value: ByteArray,
        precision: i32,
        scale: i32,
    },
}

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Rust representation for Decimal values.

This is not a representation of Parquet physical type, but rather a wrapper for DECIMAL logical type, and serves as container for raw parts of decimal values: unscaled value in bytes, precision and scale.

Variants

Int32

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Decimal backed by i32.

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Fields of Int32

value: [u8; 4]precision: i32scale: i32

Int64

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Decimal backed by i64.

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Fields of Int64

value: [u8; 8]precision: i32scale: i32

Bytes

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Decimal backed by byte array.

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Fields of Bytes

value: ByteArrayprecision: i32scale: i32

Methods

`impl Decimal`
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`pub fn from_i32(value: i32, precision: i32, scale: i32) -> Self`
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Creates new decimal value from i32.

`pub fn from_i64(value: i64, precision: i32, scale: i32) -> Self`
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Creates new decimal value from i64.

`pub fn from_bytes(value: ByteArray, precision: i32, scale: i32) -> Self`
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Creates new decimal value from ByteArray.

`pub fn data(&self) -> &[u8]`
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Returns bytes of unscaled value.

`pub fn precision(&self) -> i32`
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Returns decimal precision.

`pub fn scale(&self) -> i32`
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Returns decimal scale.

Trait Implementations

`[+] Expand attributes #[must_use] fn ne(&self, other: &Rhs) -> bool`
1.0.0
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This method tests for !=.

`impl Clone for Decimal`
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`fn clone_from(&mut self, source: &Self)`
1.0.0
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Performs copy-assignment from source. Read more

`impl Debug for Decimal`
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[+] Show hidden undocumented items

Auto Trait Implementations

`impl !Send for Decimal`

`impl !Sync for Decimal`

Blanket Implementations

`impl<T, U> Into for T where U: From<T>,`
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[+] Show hidden undocumented items

`impl<T> ToOwned for T where T: Clone,`
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[+] Show hidden undocumented items

`type Owned = T`

`impl<T> From for T`
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[+] Show hidden undocumented items

`impl<T, U> TryFrom for T where T: From<U>,`
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[+] Show hidden undocumented items

`type Error = !`

🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

`impl<T> Borrow for T where T: ?Sized,`
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[+] Show hidden undocumented items

`impl<T> Any for T where T: 'static + ?Sized,`
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[+] Show hidden undocumented items

`impl<T, U> TryInto for T where U: TryFrom<T>,`
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[+] Show hidden undocumented items

`type Error = <U as TryFrom<T>>::Error`

🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

`impl<T> BorrowMut for T where T: ?Sized,`
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[+] Show hidden undocumented items

`impl<E> SpecializationError for E`
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[+] Show hidden undocumented items

`impl<T> Erased for T`
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`impl<T> Send for T where T: ?Sized,`
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`impl<T> Sync for T where T: ?Sized,`
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`impl<T> Erased for T`

`impl<T, U> TryInto for T where U: TryFrom<T>,`
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[+] Show hidden undocumented items

[−][src]Enum parquet::data_type::Decimal

Variants

Fields of Int32

Fields of Int64

Fields of Bytes

Methods

impl Decimal[src][−]

pub fn from_i32(value: i32, precision: i32, scale: i32) -> Self[src][−]

pub fn from_i64(value: i64, precision: i32, scale: i32) -> Self[src][−]

pub fn from_bytes(value: ByteArray, precision: i32, scale: i32) -> Self[src][−]

pub fn data(&self) -> &[u8][src][−]

pub fn precision(&self) -> i32[src][−]

pub fn scale(&self) -> i32[src][−]

Trait Implementations

impl AsBytes for Decimal[src][+]

fn as_bytes(&self) -> &[u8][src][−]

impl Default for Decimal[src][+]

fn default() -> Self[src][−]

impl PartialEq<Decimal> for Decimal[src][+]

fn eq(&self, other: &Decimal) -> bool[src][−]

[+] Expand attributes#[must_use] fn ne(&self, other: &Rhs) -> bool1.0.0[src][−]

impl Clone for Decimal[src][+]

fn clone(&self) -> Decimal[src][−]

fn clone_from(&mut self, source: &Self)1.0.0[src][−]

impl Debug for Decimal[src][+]

fn fmt(&self, f: &mut Formatter) -> Result[src][−]

Auto Trait Implementations

impl !Send for Decimal

impl !Sync for Decimal

Blanket Implementations

impl<T, U> Into for T where U: From<T>, [src][−]

fn into(self) -> U[src][−]

impl<T> ToOwned for T where T: Clone, [src][−]

type Owned = T

fn to_owned(&self) -> T[src][−]

fn clone_into(&self, target: &mut T)[src][−]

impl<T> From for T[src][−]

fn from(t: T) -> T[src][−]

impl<T, U> TryFrom for T where T: From<U>, [src][−]

type Error = !

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src][−]

impl<T> Borrow for T where T: ?Sized, [src][−]

fn borrow(&self) -> &T[src][−]

impl<T> Any for T where T: 'static + ?Sized, [src][−]

fn get_type_id(&self) -> TypeId[src][−]

impl<T, U> TryInto for T where U: TryFrom<T>, [src][−]

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src][−]

impl<T> BorrowMut for T where T: ?Sized, [src][−]

fn borrow_mut(&mut self) -> &mut T[src][−]

impl<E> SpecializationError for E[src][−]

fn not_found<S, T>(trait_name: &'static str, method_name: &'static str) -> E where T: ?Sized, [src][−]

impl<T> Erased for T[src]

impl<T> Send for T where T: ?Sized, [src]

impl<T> Sync for T where T: ?Sized, [src]

impl<T> Erased for T

impl<T, U> TryInto for T where U: TryFrom<T>, [−]

type Err = <U as TryFrom<T>>::Err

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Err>

`impl Decimal`
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`pub fn from_i32(value: i32, precision: i32, scale: i32) -> Self`
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`pub fn from_i64(value: i64, precision: i32, scale: i32) -> Self`
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`pub fn from_bytes(value: ByteArray, precision: i32, scale: i32) -> Self`
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`pub fn data(&self) -> &[u8]`
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`pub fn precision(&self) -> i32`
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`pub fn scale(&self) -> i32`
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`impl AsBytes for Decimal`
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`fn as_bytes(&self) -> &[u8]`
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`impl Default for Decimal`
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`fn default() -> Self`
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`impl PartialEq<Decimal> for Decimal`
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`fn eq(&self, other: &Decimal) -> bool`
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`[+] Expand attributes #[must_use] fn ne(&self, other: &Rhs) -> bool`
1.0.0
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`impl Clone for Decimal`
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`fn clone(&self) -> Decimal`
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`fn clone_from(&mut self, source: &Self)`
1.0.0
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`impl Debug for Decimal`
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`fn fmt(&self, f: &mut Formatter) -> Result`
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`impl !Send for Decimal`

`impl !Sync for Decimal`

`impl<T, U> Into for T where U: From<T>,`
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`fn into(self) -> U`
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`impl<T> ToOwned for T where T: Clone,`
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`type Owned = T`

`fn to_owned(&self) -> T`
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`fn clone_into(&self, target: &mut T)`
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`impl<T> From for T`
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`fn from(t: T) -> T`
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`impl<T, U> TryFrom for T where T: From<U>,`
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`type Error = !`

`fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>`
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`impl<T> Borrow for T where T: ?Sized,`
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`fn borrow(&self) -> &T`
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`impl<T> Any for T where T: 'static + ?Sized,`
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`fn get_type_id(&self) -> TypeId`
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`impl<T, U> TryInto for T where U: TryFrom<T>,`
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`type Error = <U as TryFrom<T>>::Error`

`fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>`
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`impl<T> BorrowMut for T where T: ?Sized,`
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`fn borrow_mut(&mut self) -> &mut T`
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`impl<E> SpecializationError for E`
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`fn not_found<S, T>(trait_name: &'static str, method_name: &'static str) -> E where T: ?Sized,`
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`impl<T> Erased for T`
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`impl<T> Send for T where T: ?Sized,`
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`impl<T> Sync for T where T: ?Sized,`
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`impl<T> Erased for T`

`impl<T, U> TryInto for T where U: TryFrom<T>,`
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`type Err = <U as TryFrom<T>>::Err`

`fn try_into(self) -> Result<U, <U as TryFrom<T>>::Err>`