diesel::pg::data_types

Enum 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,
}
Expand description

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

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Positive

A positive 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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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<'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 FromSql<Numeric, Pg> for PgNumeric

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fn from_sql(bytes: Option<&[u8]>) -> Result<Self>

See the trait documentation.
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impl<__ST, __DB> FromSqlRow<__ST, __DB> for PgNumeric
where __DB: Backend, Self: FromSql<__ST, __DB>,

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fn build_from_row<R: Row<__DB>>(row: &mut R) -> Result<Self>

See the trait documentation.
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const FIELDS_NEEDED: usize = 1usize

The number of fields that this type will consume. Must be equal to the number of times you would call row.take() in build_from_row
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impl PartialEq for PgNumeric

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

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<__ST, __DB> Queryable<__ST, __DB> for PgNumeric
where __DB: Backend, 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) -> 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<W: Write>(&self, out: &mut Output<'_, W, __DB>) -> Result

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

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

See the trait documentation.
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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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unsafe fn clone_to_uninit(&self, dst: *mut u8)

🔬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, 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>
where Self: AsExpression<T> + Sized,

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>
where &'a Self: AsExpression<T>,

Convert &self to an expression for Diesel’s query builder. Read more
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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.