Struct DecimalLimits 

pub struct DecimalLimits {
    pub max_precision: u16,
    pub max_scale: u16,
    pub scale_within_precision: bool,
    pub max_integer_digits: Option<u16>,
}

The widest exact decimal one engine’s column holds.

Every engine that records one refuses a precision of zero, so the fewest digits is always one and is not a field.

Fields

max_precision: u16

The most digits a column may declare.

max_scale: u16

The most digits after the decimal point.

scale_within_precision: bool

Whether the digits after the point must be no more than the digits in all. Some engines let a column hold only a fraction smaller than a thousandth, with more scale than precision; most refuse it.

max_integer_digits: Option<u16>

The most digits before the decimal point, where the engine bounds them apart from the digits in all; None where the digits in all are the only bound. BigQuery holds 76 digits, but never more than 38 of them before the point.

Implementations

impl DecimalLimits

pub fn misfit(&self, precision: u16, scale: u16) -> Option<String>

Why decimal(precision, scale) does not fit, in a few plain words, or None when it does.

Parameters:

• precision: the declared digits in all;
• scale: the declared digits after the point.

pub fn nearest(&self, precision: u16, scale: u16) -> (u16, u16)

The nearest decimal(precision, scale) these limits hold, for a refusal to suggest in place of the one declared.

Parameters:

• precision: the declared digits in all;
• scale: the declared digits after the point.

Trait Implementations

impl Clone for DecimalLimits

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for DecimalLimits

impl Debug for DecimalLimits

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

Formats the value using the given formatter.

impl Eq for DecimalLimits

impl PartialEq for DecimalLimits

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DecimalLimits