Enum diesel::pg::data_types::PgNumeric

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pub enum PgNumeric {
    Positive {
        weight: i16,
        scale: u16,
        digits: Vec<i16>,
    },
    Negative {
        weight: i16,
        scale: u16,
        digits: Vec<i16>,
    },
    NaN,
}
Available on crate feature postgres_backend only.
Expand description

Represents a NUMERIC value, closely mirroring the PG wire protocol representation

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Positive

A positive number

Fields

§weight: i16

How many digits come before the decimal point?

§scale: u16

How many significant digits are there?

§digits: Vec<i16>

The digits in this number, stored in base 10000

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Negative

A negative number

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§weight: i16

How many digits come before the decimal point?

§scale: u16

How many significant digits are there?

§digits: Vec<i16>

The digits in this number, stored in base 10000

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NaN

Not a number

Trait Implementations§

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impl Arbitrary for PgNumeric

Available on crate feature quickcheck only.
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fn arbitrary(g: &mut Gen) -> Self

Return an arbitrary value. Read more
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fn shrink(&self) -> Box<dyn Iterator<Item = Self>>

Return an iterator of values that are smaller than itself. Read more
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impl<'__expr> AsExpression<Nullable<Numeric>> for &'__expr PgNumeric

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type Expression = Bound<Nullable<Numeric>, &'__expr PgNumeric>

The expression being returned
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fn as_expression(self) -> Self::Expression

Perform the conversion
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impl AsExpression<Nullable<Numeric>> for PgNumeric

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type Expression = Bound<Nullable<Numeric>, PgNumeric>

The expression being returned
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fn as_expression(self) -> Self::Expression

Perform the conversion
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impl<'__expr> AsExpression<Numeric> for &'__expr PgNumeric

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type Expression = Bound<Numeric, &'__expr PgNumeric>

The expression being returned
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fn as_expression(self) -> Self::Expression

Perform the conversion
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impl AsExpression<Numeric> for PgNumeric

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type Expression = Bound<Numeric, PgNumeric>

The expression being returned
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fn as_expression(self) -> Self::Expression

Perform the conversion
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impl Clone for PgNumeric

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fn clone(&self) -> PgNumeric

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for PgNumeric

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

Formats the value using the given formatter. Read more
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impl<'a> From<&'a BigDecimal> for PgNumeric

Available on crate feature numeric only.
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fn from(decimal: &'a BigDecimal) -> Self

Converts to this type from the input type.
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impl From<BigDecimal> for PgNumeric

Available on crate feature numeric only.
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fn from(bigdecimal: BigDecimal) -> Self

Converts to this type from the input type.
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impl FromSql<Numeric, Pg> for PgNumeric

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fn from_sql(bytes: PgValue<'_>) -> Result<Self>

See the trait documentation.
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fn from_nullable_sql(bytes: Option<DB::RawValue<'_>>) -> Result<Self>

A specialized variant of from_sql for handling null values. Read more
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impl PartialEq for PgNumeric

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

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<__DB, __ST> Queryable<__ST, __DB> for PgNumeric
where __DB: Backend, __ST: SingleValue, Self: FromSql<__ST, __DB>,

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type Row = PgNumeric

The Rust type you’d like to map from. Read more
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fn build(row: Self::Row) -> Result<Self>

Construct an instance of this type
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impl<__DB> ToSql<Nullable<Numeric>, __DB> for PgNumeric
where __DB: Backend, Self: ToSql<Numeric, __DB>,

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fn to_sql<'__b>(&'__b self, out: &mut Output<'__b, '_, __DB>) -> Result

See the trait documentation.
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impl ToSql<Numeric, Pg> for PgNumeric

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fn to_sql<'b>(&'b self, out: &mut Output<'b, '_, Pg>) -> Result

See the trait documentation.
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impl<'a> TryFrom<&'a PgNumeric> for BigDecimal

Available on crate feature numeric only.
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type Error = Box<dyn Error + Send + Sync>

The type returned in the event of a conversion error.
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fn try_from(numeric: &'a PgNumeric) -> Result<Self>

Performs the conversion.
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impl TryFrom<PgNumeric> for BigDecimal

Available on crate feature numeric only.
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type Error = Box<dyn Error + Send + Sync>

The type returned in the event of a conversion error.
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fn try_from(numeric: PgNumeric) -> Result<Self>

Performs the conversion.
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impl Eq for PgNumeric

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impl StructuralPartialEq for PgNumeric

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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default unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, ST, DB> FromSqlRow<ST, DB> for T
where T: Queryable<ST, DB>, ST: SqlTypeOrSelectable, DB: Backend, <T as Queryable<ST, DB>>::Row: FromStaticSqlRow<ST, DB>,

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fn build_from_row<'a>( row: &impl Row<'a, DB>, ) -> Result<T, Box<dyn Error + Send + Sync>>

See the trait documentation.
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impl<T, ST, DB> FromStaticSqlRow<ST, DB> for T
where DB: Backend, T: FromSql<ST, DB>, ST: SingleValue,

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fn build_from_row<'a>( row: &impl Row<'a, DB>, ) -> Result<T, Box<dyn Error + Send + Sync>>

See the trait documentation
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoSql for T

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fn into_sql<T>(self) -> AsExprOf<Self, T>

Convert self to an expression for Diesel’s query builder. Read more
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fn as_sql<'a, T>(&'a self) -> AsExprOf<&'a Self, T>

Convert &self to an expression for Diesel’s query builder. Read more
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impl<T, ST, DB> StaticallySizedRow<ST, DB> for T
where ST: SqlTypeOrSelectable + TupleSize, T: Queryable<ST, DB>, DB: Backend,

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const FIELD_COUNT: usize = const FIELD_COUNT: usize = <ST as crate::util::TupleSize>::SIZE;

The number of fields that this type will consume.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V